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1000 results found for “Papillomavirus”
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Name :
HCV FusionDescription:
Hepatitis C Virus Fusion Recombinant
Product # :
HCV-009Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
Recombinant HCV Fusion protein produced in E.Coli containing HCV core (120 a.a.), HCV NS3 (226 a.a.), HCV NS4 (3 epitopes) and HCV NS5 region (3 epitopes) having a total Mw of 65kDa.HCV Fusion protein is purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
Sterile filtered solution containing 1x PBS and 50mM K2CO3.
Purity
Greater than 95.0% as determined by SDS-PAGE.
More Info
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Introduction
HCV is a small 50nm, enveloped, single-stranded, positive sense RNAvirus in the family Flaviviridae.
HCV has a high rate of replication with approximately one trillion particles produced each day in an infected individual. Due to lack of proofreading by the HCV RNA polymerase, the HCV has an exceptionally high mutation rate, a factor that may help it elude the host's immune response. Hepatitis C virus is classified into six genotypes(1-6) with several subtypes within each genotype. The preponderance and distribution of HCV genotypes varies globally. Genotype is clinically important in determining potential response to interferon-based therapy and the required duration of such therapy. Genotypes 1 and 4 are less responsive to interferon-based treatment than are the other genotypes (2, 3, 5 and 6). -
Physical Appearance
Sterile filtered colorless solution.
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Stability
Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time.For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Avoid multiple freeze-thaw cycles.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
- View Data Sheet
Name :
HCV NS4 Mosaic Genotype-3Description:
Hepatitis C Virus NS4 Mosaic Genotype-3 Recombinant
Product # :
HCV-259Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
The E.coli derived recombinant protein contains the HCV NS4 immunodominant regions, amino acids 1691-1710, 1712-1733 & 1921-1940, fused with a GST tag at N-terminus.
Formulation
1.5M urea, 25mM Tris-HCl, pH 8.0, 0.2% Triton-X & 50% glycerol.
Purity
Protein is >95% pure as determined by 10% PAGE (coomassie staining).
More Info
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Introduction
HCV is a small 50nm, enveloped, single-stranded, positive sense RNAvirus in the family Flaviviridae.
HCV has a high rate of replication with approximately one trillion particles produced each day in an infected individual. Due to lack of proofreading by the HCV RNA polymerase, the HCV has an exceptionally high mutation rate, a factor that may help it elude the host's immune response. Hepatitis C virus is classified into six genotypes(1-6) with several subtypes within each genotype. The preponderance and distribution of HCV genotypes varies globally. Genotype is clinically important in determining potential response to interferon-based therapy and the required duration of such therapy. Genotypes 1 and 4 are less responsive to interferon-based treatment than are the other genotypes (2, 3, 5 and 6). -
Stability
HCV NS4 Mosaic Genotype-3 although stable at 4°C for 1 week, should be stored below -18°C. Please prevent freeze thaw cycles.
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Applications
Antigen in ELISA and Western blots, excellent antigen for detection of HCV with minimal specificity problems.
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Specificity
Immunoreactive with sera of HCV-infected individuals.
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Purification Method
Purified by proprietary chromatographic technique.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
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Name :
Dengue Epitope 10Description:
Dengue Multiple Epitopes 10 Recombinant
Product # :
DEN-042Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
Recombinant Dengue Multiple Epitopes 10 is genetically designed dengue multiple epitopes epi-10 designed especially for lateral flow product, they are selected from dengue genome. The rapid test prepared by this antigen has over 90% sensitivity and specificity of over 90% to show quick and strong signal for both dengue IgM and IgG.
Source
Escherichia Coli.
Formulation
Phosphate buffered saline/ 25mM K2CO3 and 0.02% sodium nitrate.
Purity
Protein is >95% pure as determined by 12% PAGE (coomassie staining).
More Info
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Introduction
Caused by one of four closely related virus serotypes of the genus Flavivirus, family Flaviviridae, each serotype is sufficiently different that there is no cross-protection and epidemics caused by multiple serotypes (hyperendemicity) can occur. In cell culture experiments and mice Morpholino antisense oligos have shown specific activity against Dengue virus.
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Stability
Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Avoid multiple freeze-thaw cycles.
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Applications
Lateral flow immunoassay.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
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Description:
Mycobacterium Tuberculosis RV1681, Polyclonal Rabbit Antibody
Product # :
ANT-493Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
The polyclonal antibody to Mycobacterium Tuberculosis RV1681 was collected from the rabbit igG and immunized with recombinant M. tuberculosis t RV-1681.
Formulation
Glycine-Tris buffer, pH7.5.
Purity
Pure Rabbit IgG, >95% pure as determined by 12% PAGE (coomassie staining).
More Info
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Introduction
Mycobacterium tuberculosis, a member of the Mycobacteriaceae family, is an important infectious pathogenic bacteria and the cause for most cases of tuberculosis. It is the second common cause of death from an infectious disease in the world. Diagnosis using patient’s specimen culture of M. tuberculosis are still considered gold standard, but it is expensive and time-consuming. RV-1681 is a protein released from M. tuberculosis on infected organ, which filtrates through into the urine after circulating in the blood flow, to the kidney.RV-1681 is considered to be a reliable marker for M. tuberculosis diagnosis allowing easy low cost and time saving urine testing to screen large population for M. tuberculosis infection.
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Physical Appearance
Sterile Filtered clear colorless solution.
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Stability
Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Avoid multiple freeze-thaw cycles.
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Purification Method
Purified by affinity chromatographic technique.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
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Name :
HCV NS5 Genotype-3Description:
Hepatitis C Virus NS5 Genotype-3 Recombinant
Product # :
HCV-221Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
The E.coli derived recombinant protein fused to a GST tag contains the HCV NS5 Genotype 3 immunodominant regions.
Formulation
25mM Tris-HCl, 1mM EDTA, 1.5M urea and 50% glycerol.
Purity
HCV NS5 Genotype-3 protein is >95% pure as determined by 10% PAGE (coomassie staining).
More Info
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Introduction
HCV is a small 50nm, enveloped, single-stranded, positive sense RNAvirus in the family Flaviviridae.
HCV has a high rate of replication with approximately one trillion particles produced each day in an infected individual. Due to lack of proofreading by the HCV RNA polymerase, the HCV has an exceptionally high mutation rate, a factor that may help it elude the host's immune response. Hepatitis C virus is classified into six genotypes(1-6) with several subtypes within each genotype. The preponderance and distribution of HCV genotypes varies globally. Genotype is clinically important in determining potential response to interferon-based therapy and the required duration of such therapy. Genotypes 1 and 4 are less responsive to interferon-based treatment than are the other genotypes (2, 3, 5 and 6). -
Stability
HCV NS5 Genotype-3 although stable at 4°C for 1 week, should be stored below -18°C. Please prevent freeze thaw cycles.
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Applications
HCV NS5 Genotype-3 antigen is suitable for ELISA and Western blots, excellent antigen for detection of HCV with minimal specificity problems.
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Specificity
Immunoreactive with sera of HCV-infected individuals.
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Purification Method
HCV NS5 Genotype-3 protein was purified by proprietary chromatographic technique.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
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Name :
HIV-1 p24, BiotinDescription:
HIV-1 p24 Recombinant, Biotin Labeled
Product # :
HIV-106Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
The E.coli derived 39 kDa biotin labeled recombinant protein is a non-glycosylated polypeptide chain, containing the HIV-1 p24 immunodominant regions, amino acids 77-436.The HIV-1 p24 Biotinylated is fused to beta-galactosidase (114 kDa) at the N-terminus.
Source
Escherichia Coli.
Formulation
8M Urea, 20mM Tris-HCl pH 8.0, 10mM b-mercaptoethanol.
Purity
Greater than 95.0% as determined by SDS-PAGE.
More Info
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Introduction
Human immunodeficiency virus (HIV) is a retrovirusthat can lead to a condition in which the immune systembegins to fail, leading to opportunistic infections. HIV primarily infects vital cells in the humanimmune systemsuch as helper T cells(specifically CD4+ T cells), macrophagesand dendritic cells. HIV infection leads to low levels of CD4+ T cells through three main mechanisms: firstly, direct viral killing of infected cells; secondly, increased rates of apoptosisin infected cells; and thirdly, killing of infected CD4+ T cells by CD8 cytotoxic lymphocytesthat recognize infected cells. When CD4+ T cell numbers decline below a critical level, cell-mediated immunityis lost, and the body becomes progressively more susceptible to opportunistic infections. HIV was classified as a member of the genus Lentivirus, part of the family of Retroviridae. Lentiviruses have many common morphologies and biological properties. Many species are infected by lentiviruses, which are characteristically responsible for long-duration illnesses with a long incubation period. Lentiviruses are transmitted as single-stranded, positive-sense, enveloped RNA viruses. Upon entry of the target cell, the viral RNA genomeis converted to double-stranded DNAby a virally encoded reverse transcriptasethat is present in the virus particle. This viral DNA is then integrated into the cellular DNA by a virally encoded integraseso that the genome can be transcribed. Once the virus has infected the cell, two pathways are possible: either the virus becomes latentand the infected cell continues to function, or the virus becomes active and replicates, and a large number of virus particles are liberated that can then infect other cells.
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Physical Appearance
Sterile filtered colorless clear solution.
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Stability
HIV-1 p24 although stable at 4°C for 1 week, should be stored below -18°C. Please prevent freeze thaw cycles.
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Applications
HIV-1 p24 antigen is suitable for ELISA and Western blots, excellent antigen for early detection of HIV seroconvertors with minimal specificity problems.
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Specificity
Immunoreactive with all sera of HIV-1 infected individuals.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
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Name :
HCV Core 169aaDescription:
Hepatitis C Virus Nucleocapsid (core) 169aa Recombinant
Product # :
HCV-012Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
Recombinant HCV core protein genotype 1b produced in E.Coli, comprised of the large core peptide containing 169 a.a. which forms a dimer, fused to a 6xHis tag at C-terminus, having a total Mw of 38kDa and pI of 11.02. Recombinant HCV core protein genotype 1b was purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
Sterile filtered solution containing Phosphate saline buffer, 25mM K2CO3 and 6M urea.
Purity
Greater than 85.0% as determined by SDS-PAGE.
More Info
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Introduction
HCV is a small 50nm, enveloped, single-stranded, positive sense RNAvirus in the family Flaviviridae.
HCV has a high rate of replication with approximately one trillion particles produced each day in an infected individual. Due to lack of proofreading by the HCV RNA polymerase, the HCV has an exceptionally high mutation rate, a factor that may help it elude the host's immune response. Hepatitis C virus is classified into six genotypes(1-6) with several subtypes within each genotype. The preponderance and distribution of HCV genotypes varies globally. Genotype is clinically important in determining potential response to interferon-based therapy and the required duration of such therapy. Genotypes 1 and 4 are less responsive to interferon-based treatment than are the other genotypes (2, 3, 5 and 6). -
Physical Appearance
Sterile filtered colorless solution.
-
Stability
Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time.For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Avoid multiple freeze-thaw cycles.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
- View Data Sheet
Name :
HCV Core Genotype-5Description:
Hepatitis C Virus Core Genotype-5 Recombinant
Product # :
HCV-217Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
The E.coli derived recombinant protein contains the HCV core nucleocapsid immunodominant regions, amino acids 2-119.
Formulation
25mM Tris-HCl, pH 8.0, 1.5M Urea, 0.2% Triton-X and 50% glycerol.
Purity
Protein is >95% pure as determined by SDS-PAGE.
More Info
-
Introduction
HCV is a small 50nm, enveloped, single-stranded, positive sense RNAvirus in the family Flaviviridae.
HCV has a high rate of replication with approximately one trillion particles produced each day in an infected individual. Due to lack of proofreading by the HCV RNA polymerase, the HCV has an exceptionally high mutation rate, a factor that may help it elude the host's immune response. Hepatitis C virus is classified into six genotypes(1-6) with several subtypes within each genotype. The preponderance and distribution of HCV genotypes varies globally. Genotype is clinically important in determining potential response to interferon-based therapy and the required duration of such therapy. Genotypes 1 and 4 are less responsive to interferon-based treatment than are the other genotypes (2, 3, 5 and 6). -
Stability
HCV Core Genotype-5 although stable at 4°C for 1 week, should be stored below -18°C. Please prevent freeze thaw cycles.
-
Applications
HCV Core Genotype-5 antigen is suitable for ELISA and Western blots, excellent antigen for detection of HCV with minimal specificity problems.
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Specificity
Immunoreactive with sera of HCV-infected individuals.
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Purification Method
HCV Core Genotype-5 protein was purified by proprietary chromatographic technique.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
- View Data Sheet
Name :
CoV-2 Spike E-MosaicDescription:
Coronavirus 2019 Spike E-Mosaic Recombinant
Product # :
SARS-014Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
The E.Coli derived recombinant protein contains the Coronavirus 2019 spike Envelope Mosaic immunodominant regions having a Mwq of 40.5 kDa, fused to 6xHis tag at C-terminal.
Source
Escherichia Coli.
Formulation
CoV 2019 Spike E-Mosaic Protein 1mg/ml solution is supplied in 1x PBS.
Purity
CoV 2019 Spike E-Mosaic Protein is >90% pure as determined SDS-PAGE.
More Info
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Introduction
A human infecting coronavirus (viral pneumonia) called 2019 novel coronavirus, 2019-nCoV was found in the fish market at the city of Wuhan, Hubei province of China on December 2019.
The 2019-nCoV shares an 87% identity to the 2 bat-derived severe acute respiratory syndrome 2018 SARS-CoV-2 located in Zhoushan of eastern China. 2019-nCoV has an analogous receptor-BD-structure to that of 2018 SARS-CoV, even though there is a.a. diversity so thus the 2019-nCoV might bind to ACE2 receptor protein (angiotensin-converting enzyme 2) in humans.
While bats are possibly the host of 2019-nCoV, researchers suspect that animal from the ocean sold at the seafood market was an intermediate host. RSCU analysis proposes that the 2019-nCoV is a recombinant within the viral spike glycoprotein between the bat coronavirus and an unknown coronavirus.
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Physical Appearance
Sterile Filtered clear solution.
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Stability
CoV 2019 Spike E-Mosaic Protein is shipped on ice packs. Upon arrival, Store at -20°C.
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Amino Acid Sequence
S-part (20-210 a.a.)
RTQLPPAYTN SFTRGVYYPD KVFRSSVLHS TQDLFLPFFS NVTWFHAIHV SGTNGTKRFD NPVLPFNDGV YFASTEKSNI IRGWIFGTTL DSKTQSLLIV NNATNVVIKV CEFQFCNDPF LGVYYHKNNK SWMESEFRVY SSANNCTFEY VSQPFLMDLE GKQGNFKNLR EFVFKNIDGY FKIYSKHTPI
E-part (51-75 a.a.)
AYCCNIVNVS LVKPSFYVYS RVKNLNSSRV PDLLV
M part (100-222 a.a.)
RLFARTRSMW SFNPETNILL NVPLHGTILT RPLLESELVI GAVILRGHLR IAGHHLGRCD
IKDLPKEITV ATSRTLSYYK LGASQRVAGD SGFAAYSRYR IGNYKLNTDH SSSSDNIALL VQ
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
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Name :
Trypanosoma Cruzi B13Description:
Trypanosoma Cruzi B13 Recombinant
Product # :
CCH-003Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
Recombinant Trypanosoma Cruzi B13 produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 227 amino acids and having a molecular mass of 23kDa. The Trypanosoma Cruzi B13 is fused to a His tag at C-terminus and is purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
(1mg/1ml) in phosphate buffer saline and 25mM k2co3.
Purity
Protein is >90% pure as determined by 10% PAGE (coomassie staining).
More Info
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Physical Appearance
Sterile filtered colorless solution.
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Stability
Recombinant Trypanosoma Cruzi B13 although stable at 4°C for 1 week, should be stored below -18°C. Please prevent freeze thaw cycles.
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Background
Among the numerous antigens that T. cruzi expresses, the B13 protein has been identified as a main component involved in immune recognition and host-parasite interactions. Trypanosoma Cruzi B13 is a very immunogenic antigen found in the T. cruzi epimastigote and trypomastigote forms. Trypanosoma Cruzi B13 takes part in host-parasite interactions first by binding to host cells such as cardiac and smooth muscle cells, which are very important in the pathology of Chagas disease. Trypanosoma cruzi is the protozoan parasite responsible for Chagas disease which affects millions of people in Latin America. The parasite has a complex life cycle and eludes the immune response through various mechanisms, making it a complex target for therapeutic interventions.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
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Name :
HCV NS4 a+b RhodamineDescription:
Hepatitis C Virus NS4 a+b Rhodamine Labeled Recombinant
Product # :
HCV-226Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
The E.coli derived 19 kDa recombinant protein rhodamine labeled contains the HCV NS4 immunodominant regions, amino acids 1658-1863. The protein is fused with b-galactosidase (114 kDa) at N-terminus.
Formulation
20mM Tris-Hcl pH 8, 8M urea and 10mM B-ME.
Purity
Protein is >95% pure as determined by 10% PAGE (coomassie staining).
More Info
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Introduction
HCV is a small 50nm, enveloped, single-stranded, positive sense RNAvirus in the family Flaviviridae.
HCV has a high rate of replication with approximately one trillion particles produced each day in an infected individual. Due to lack of proofreading by the HCV RNA polymerase, the HCV has an exceptionally high mutation rate, a factor that may help it elude the host's immune response. Hepatitis C virus is classified into six genotypes(1-6) with several subtypes within each genotype. The preponderance and distribution of HCV genotypes varies globally. Genotype is clinically important in determining potential response to interferon-based therapy and the required duration of such therapy. Genotypes 1 and 4 are less responsive to interferon-based treatment than are the other genotypes (2, 3, 5 and 6). -
Stability
HCV NS4 a+b Rhodamine although stable at 4°C for 1 week, should be stored below -18°C. Please prevent freeze thaw cycles.
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Applications
Antigen in ELISA and Western blots, excellent antigen for detection of HCV with minimal specificity problems.
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Specificity
Immunoreactive with sera of HCV-infected individuals.
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Purification Method
Purified by proprietary chromatographic technique.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
- View Data Sheet
Name :
HBV-XDescription:
Hepatitis B Virus x Recombinant
Product # :
HBV-273Price :
Quantity :
Shipping Method :
Shipped at Room temp
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- formulation
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Description
Hepatitis B Virus Protein X is a 17kDa protein containing 154 amino acid residues and purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
Filtered (0.4µm) and lyophilized from 0.5mg/ml in 30mM acetate buffer pH4 and 5% trehalose.
Purity
Greater than 95% as determined by SDS-PAGE.
More Info
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Introduction
Hepatitis B virus X protein (HBx) is a 17 kD transcriptional coactivator that plays a significant role in the regulation of genes involved in inflammation and cell survival. It regulates many transcription factors including nuclear factor kappa B (NF-kappaB) and plays a key role in hepatocarcinogenesis. rHBx facilitates the binding of cAMP response element binding protein (CREB) to its responsive element. rHBx stabilizes the cellular coactivator ASC-2 through direct protein-protein interaction, affecting the regulation of genes actively transcribed in liver cancer cells. HBx transactivates both JNK and MAPK signal transduction pathways in association with the mobilization of cytosolic Ca2+. The communication between HBx and general transcription factor TFIIB is also one of the mechanisms which account for its transcriptional transactivation. HBx decreased the expression of PTEN a known tumor suppressor and a negative regulator of phosphatidylinositol 3'-kinase/AKT and HBx decreased the expression of PTEN in HBx-transfected cells. The etiology of hepatocellular carcinoma (HCC) is involved with hepatitis B virus (HBV) infection and HBx in particular plays a role in the development of HBV-related HCC. The persistence of HBx is important to the pathogenesis of early HCC and HBx expression in the liver during chronic HBV infection may be an important prognostic marker for the development of HCC.
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Stability
For long term storage lyophilized protein should be stored at -20°C. Aliquot the product after reconstitution to avoid repeated freezing/thawing cycles. Reconstituted protein can be stored at 4°C for a limited period of time; it does not show any change after two weeks at 4°C.
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Solubility
It is recommended to add 0.1M Acetate buffer pH4 to prepare a working stock solution of approximately 0.5mg/ml and let the lyophilized pellet dissolve completely. For conversion into higher pH value, we recommend intensive dilution by relevant buffer to a concentration of 10µg/ml. In higher concentrations the solubility of the HBV X antigen is limited. Filter sterilize your culture media/working solutions containing this non-sterile product before using in cell culture.
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Amino Acid Sequence
MAARVCCQLD PARDVLCLRP VGAESRGRPV SGPFGTLPSP SSSAVPADHG AHLSLRGLPV CAFSSAGPCA LRFTSARRME TTVNAHQVLP KVLHKRTLGL SAMSTTDLEA YFKDCLFKDW EELGEEIRLK VFVLGGCRHK LVCSPAPCNF FTSA.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
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Name :
IL 13 Rat 109 a.a.Description:
Interleukin-13 109 a.a. Rat Recombinant
NC300, ALRH, BHR1, P600, IL-13.
Product # :
CYT-182Price :
Quantity :
Shipping Method :
Shipped at Room temp
More Info
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- source
- formulation
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- biological activity
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Description
Interleukin-13 Rat Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 109 amino acids and having a molecular mass of 11.9 kDa. The IL-13 is purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
The protein (1mg/ml) was lyophilized in PBS, pH7.4.
Purity
Greater than 95% as determined by SDS-PAGE.
Biological Activity
ED50 range = 40ng/ml, corresponding to a specific activity of > 25,000IU/mg as determined by the dose dependent proliferation of human TF-1 cells. Optimal concentration for individual application should be determined by a dose response assay.More Info
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Introduction
IL13 is an immunoregulatory cytokine produced primarily by activated Th2 cells. IL-13 is involved in several stages of B-cell maturation and differentiation. It up-regulates CD23 and MHC class II expression, and promotes IgE isotype switching of B cells. This cytokine down-regulates macrophage activity, thereby inhibits the production of pro-inflammatory cytokines and chemokines. This cytokine is found to be critical to the pathogenesis of allergen-induced asthma but operates through mechanisms independent of IgE and eosinophils. This gene, IL3, IL5, IL4, and CSF2 form a cytokine gene cluster on chromosome 5q, with this gene particularly close to IL4.
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Synonyms
NC300, ALRH, BHR1, P600, IL-13.
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Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
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Stability
Lyophilized Interleukin-13 although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution IL13 should be stored at 4°C between 2-7 days and for future use below -18°C.For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Please prevent freeze-thaw cycles.
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Solubility
It is recommended to reconstitute the lyophilized Interleukin 13 in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
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Amino Acid Sequence
VRRSTSPPVA LRELIEELSN ITQDQKTSLC NSSIVWSVDI TAGGFCAALE SLTNISSCNA IHRTQRILNG LCNQKASDVA SSPPDTKIEV AQFISKLLNY SKQLFRYGH.
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Protein content
Protein quantitation was carried out by two independent methods:1. UV spectroscopy at 280 nm using the absorbency value of 0.69 as the extinction coefficient for a 0.1% (1mg/ml) solution. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics). 2. Analysis by RP-HPLC, using a calibrated solution of IL-13 as a Reference Standard.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
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Name :
Y.Enterocolitica (O:9) LcrVDescription:
Yersinia Enterocolitica (O:9) LcrV Recombinant
Product # :
PRO-2277Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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- source
- formulation
- purity
- More Info
Description
Recombinant Yersinia Enterocolitica (O:9) LcrV produced in E.coli is a non-glycosylated, polypeptide chain having a calculated molecular mass of 38,668 Dalton. Y.Enterocolitica (O:9) LcrV is expressed with a 10xHis tag at N-terminus and purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
Y.Enterocolitica (O:9) LcrV is supplied in 20mM HEPES buffer pH-7.6, 250mM NaCl and 20% glycerol.
Purity
Greater than 80.0% as determined by SDS-PAGE.
More Info
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Introduction
Yersinia enterocolitica is a Gram-negative bacillus-shaped bacterium, which is a member of the Enterobacteriaceae family. Y.Enterocolitica is motile at temperatures between 22-29°C, however becomes non-motile at normal human body temperature. Y. Enterocolitica infection causes the yersiniosis disease, which is an animal-borne disease occurring in humans, as well as in a various groups of animals such as cattle, deer, pigs, and birds. Yersinia enterocolitica is a heterogeneous group of strains, which are conventionally classified by bio-typing into six bio-groups on the basis of phenotypic characteristics, and by serotyping into more than 57 “O” serogroups, on the basis of their O (lipopolysaccharide or LPS) surface antigen. Five of the six biogroups (1B and 2–5) are considered as pathogens. Nevertheless, only a few of these serogroups have been linked with disease in either humans or animals. Strains which belong to serogroups O:3 (biogroup 4), O:5,27 (biogroups 2 and 3), O:8 (biogroup 1B), and O:9 (biogroup 2) are most frequently isolated worldwide from human samples. Still, the main Y. enterocolitica serogroup in many European countries is serogroup O:3 followed by O:9, whereas the serogroup O:8 is mostly detected in the United States.
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Physical Appearance
Sterile Filtered clear solution.
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Stability
Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. Avoid multiple freeze-thaw cycles.
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Immunological Functions
1. Binds IgG- and IgM- and IgA-type human antibodies.2. Immunodot test with positive/negative sera panels.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
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Name :
SAA1 MonkeyDescription:
Serum Amyloid A (APO-SAA1) Rhesus Macaque Recombinant
Serum amyloid A protein, SAA, Amyloid protein A, Amyloid fibril protein AA, SAA1, SAA2, PIG4, TP53I4, MGC111216.
Product # :
CYT-719Price :
Quantity :
Shipping Method :
Shipped at Room temp
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Description
SAA1 monkey Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 104 amino acids and having a total molecular mass of 11.8 kDa. SAA1 is purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
The protein was lyophilized with 1x PBS pH-7.4
Purity
Greater than 97.0% as determined by: (a) Analysis by RP-HPLC. (b) Analysis by SDS-PAGE.
Biological Activity
Determined by its ability to chemoattract human monocytes using a concentration range of 1.0-10.0 ng/ml.More Info
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Introduction
SAA1 protein is an acute phase apolipoprotein reactant which is produced mostly by hepatocytes and under regulation of inflammatory cytokines. SAA1 (Serum amyloid A1) protein is produced mainly in the liver and circulates in low levels in the blood. The SAA1 seems to have a role in the immune system. SAA1 protein levels increase in the blood and other tissues under conditions of inflammation. SAA1 may facilitate the repair of injured tissues; it also acts as an antibacterial agent, and signals the migration of germ-fighting cells to sites of infection. SAA1 also functions as an apolipoprotein of the HDL complex.
Elevated levels of SAA1 ultimately affect secondary amyloidosis, extracellular amassing of amyloid fibrils, resulting from a circulating precursor, in a variety of tissues and organs. The most widespread type of amyloidosis appears secondary to chronic inflammatory disease, mainly rheumatoid arthritis. The SAA1 cleavage product a designated amyloid protein A is deposited systemically as amyloid in vital organs such as the liver, spleen, and kidneys in chronic inflammatory diseases patients. These deposits are extremely insoluble and resistant to proteolysis; they disrupt tissue structure and compromise performance. -
Synonyms
Serum amyloid A protein, SAA, Amyloid protein A, Amyloid fibril protein AA, SAA1, SAA2, PIG4, TP53I4, MGC111216.
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Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
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Stability
Lyophilized SAA1 although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution SAA1 should be stored at 4°C between 2-7 days and for future use below -18°C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Please prevent freeze-thaw cycles.
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Solubility
It is recommended to reconstitute the lyophilized SAA1 in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
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Amino Acid Sequence
RSWFSFLGEA YDGARDMWRA YSDMKEANYK NSDKYFHARG NYDAAQRGPG GVWAAEVISD ARENIQKLLG RGAEDTLADQ AANEWGRSGK DPNHFRPAGL PEKY.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
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Name :
CoV-2 S1 (319-529)Description:
Coronavirus 2019-nCoV Spike Glycoprotein-S1 Receptor Binding Domain (319-529 a.a.) Recombinant
Severe acute respiratory syndrome coronavirus 2, COVID-19, COVID-19 virus, COVID19, HCoV-19, Human coronavirus 2019, SARS-2, SARS-CoV2, SARS2, Wuhan coronavirus, Wuhan seafood market pneumonia virus, SARS-CoV-2 SP RBD, 2019-nCoV SP RBD, 2019-nCoV, 2019-nCoV; Spike RBD Protein.
Product # :
SARS-050Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
The recombinant Coronavirus 2019-nCoV Spike Glycoprotein-S1 Receptor Binding Domain containing a total of 221 amino acids (319-529) and having a calculated Mw of 24.9 kDa. CoV-2 S1 (319-529) is fused to a 10 amino acid His-tag at C-terminus,and is purified by proprietary chromatographic techniques.
Source
HEK293 Cells.
Formulation
CoV-2 S1 (319-529) solution (0.25mg/ml) contains Phosphate-Buffered Saline (pH 7.4) containing 10% glycerol.
Purity
Greater than 95.0% as determined by SDS-PAGE.
Biological Activity
Measured by its binding ability in a functional ELISA with Human ACE-2 (CAT# enz-1159).
More Info
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Introduction
A human infecting coronavirus (viral pneumonia) called 2019 novel coronavirus, 2019-nCoV was found in the fish market at the city of Wuhan, Hubei province of China on December 2019.The 2019-nCoV shares an 87% identity to the 2 bat-derived severe acute respiratory syndrome 2018 SARS-CoV-2 located in Zhoushan of eastern China. 2019-nCoV has an analogous receptor-BD-structure to that of 2018 SARS-CoV, even though there is a.a. diversity so thus the 2019-nCoV might bind to ACE2 receptor protein (angiotensin-converting enzyme 2) in humans.While bats are probably the host of 2019-nCoV, researchers suspect that animal from the ocean sold at the seafood market was an intermediate host. RSCU analysis proposes that the 2019-nCoV is a recombinant within the viral spike glycoprotein between the bat coronavirus and an unknown coronavirus.
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Synonyms
Severe acute respiratory syndrome coronavirus 2, COVID-19, COVID-19 virus, COVID19, HCoV-19, Human coronavirus 2019, SARS-2, SARS-CoV2, SARS2, Wuhan coronavirus, Wuhan seafood market pneumonia virus, SARS-CoV-2 SP RBD, 2019-nCoV SP RBD, 2019-nCoV, 2019-nCoV; Spike RBD Protein.
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Physical Appearance
Sterile Filtered colorless solution.
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Stability
Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Avoid multiple freeze-thaw cycles.
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Amino Acid Sequence
DGSMRVQPTE SIVRFPNITN LCPFGEVFNA TRFASVYAWN RKRISNCVAD YSVLYNSASF STFKCYGVSP TKLNDLCFTN VYADSFVIRG DEVRQIAPGQ TGKIADYNYK LPDDFTGCVI AWNSNNLDSK VGGNYNYLYR LFRKSNLKPF ERDISTEIYQ AGSTPCNGVE GFNCYFPLQS YGFQPTNGVG YQPYRVVVLS FELLHAPATV CGPKKHHHHH H
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
- View Data Sheet
Name :
HCV NS5 Genotype-6aDescription:
Hepatitis C Virus NS5 Genotype-6a Recombinant
Product # :
HCV-234Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
The E.coli derived recombinant protein contains the HCV NS5 Genotype 6a immunodominant regions, amino acids 2212-2313. The protein is fused with GST tag N-terminus.
Formulation
1.5M urea, 25mM Tris-HCl, pH-8, 0.2% Triton-X & 50% Glycerol.
Purity
HCV NS5 Genotype-6a protein is >95% pure as determined by 10% PAGE (coomassie staining).
More Info
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Introduction
HCV is a small 50nm, enveloped, single-stranded, positive sense RNAvirus in the family Flaviviridae.
HCV has a high rate of replication with approximately one trillion particles produced each day in an infected individual. Due to lack of proofreading by the HCV RNA polymerase, the HCV has an exceptionally high mutation rate, a factor that may help it elude the host's immune response. Hepatitis C virus is classified into six genotypes(1-6) with several subtypes within each genotype. The preponderance and distribution of HCV genotypes varies globally. Genotype is clinically important in determining potential response to interferon-based therapy and the required duration of such therapy. Genotypes 1 and 4 are less responsive to interferon-based treatment than are the other genotypes (2, 3, 5 and 6). -
Stability
HCV NS5 Genotype-6a although stable at 4°C for 1 week, should be stored below -18°C. Please prevent freeze thaw cycles.
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Applications
HCV NS5 Genotype-6a antigen is suitable for ELISA and Western blots, excellent antigen for detection of HCV with minimal specificity problems.
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Specificity
Immunoreactive with sera of HCV-infected individuals.
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Purification Method
HCV NS5 Genotype-6a protein was purified by proprietary chromatographic technique.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
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Name :
CoV-2 OmicronDescription:
Coronavirus 2019 Omicron Full Length Recombinant
Product # :
SARS-059Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
The E.Coli derived recombinant protein contains the Omicron Covid-19 full-length nucleprotein, fused to 6xHis tag at N-terminal migrating at 48 kDa.
Source
Escherichia Coli.
Formulation
CoV-2 Omicron protein solution (2.18mg/ml) is supplied in PBS and 25mM K2CO3.
Purity
Protein is >95% pure as determined SDS-PAGE.
More Info
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Introduction
A human infecting coronavirus (viral pneumonia) called 2019 novel coronavirus, 2019-nCoV was found in the fish market at the city of Wuhan, Hubei province of China on December 2019.
The 2019-nCoV shares an 87% identity to the 2 bat-derived severe acute respiratory syndrome 2018 SARS-CoV-2 located in Zhoushan of eastern China. 2019-nCoV has an analogous receptor-BD-structure to that of 2018 SARS-CoV, even though there is a.a. diversity so thus the 2019-nCoV might bind to ACE2 receptor protein (angiotensin-converting enzyme 2) in humans.
On November 2021, WHO designated a variant of concern, named Omicron. Omicron has several mutations that may have an impact on how it behaves (how easily it spreads, the severity of illness). -
Physical Appearance
Sterile Filtered clear solution.
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Stability
Protein is shipped on ice packs. Upon arrival, Store at -20°C.
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Amino Acid Sequence
HMSDNGPQNQ RNALRITFGG PSDSTGSNQN GEARSKQRRP QGLPNNTASW FTALTQHGKE DLKFPRGQGV PINTNSSPDD QIGYYRRATR RIRGGDGKMK ELSPRWYFYY LGTGPEAGLP YGANKDGIIW VATEGALNTP KDHIGTRNPA NNAAIVLQLP QGTTLPKGFY AEGSRGGSQA SSRSSSRSRN SSRNSTPGSS KRTSPARMAG NGGDAALALL LLDRLNQLES KMSGKGQQQQ GQTVTKKSAA EASKKPRQKRT ATKAYNVTQA FGRRGPEQTQ GNFGDQELIR QGTDYKHWPQ IAQFAPSASA FFGMSRIGME VTPSGTWLTY TGAIKLDDKD PNFKDQVILL NKHIDAYKTF PPTEPKKDKK KKADETQALP QRQKKQQTVT LLPAADLDDF SKQLQQSMSS ADSTQA
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
- View Data Sheet
Name :
HIV-1 TAT Clade-BDescription:
HIV-1 TAT Clade-B Recombinant
Product # :
HIV-129Price :
Quantity :
Shipping Method :
Shipped at Room temp
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Description
HIV-1 TAT Recombinant- produced in E.coli is a single, non-glycosylated, polypeptide chain containing 86 amino acids encoded by two exons and having a molecular mass of 14kDa.
Source
Escherichia Coli.
Formulation
Lyophilized with 0.1% glycerol.
Purity
Greater than 90.0% as determined by SDS-PAGE.
More Info
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Introduction
Human immunodeficiency virus type-1 (HIV-1) regulatory Tat protein plays an essential role in viral replication (Jones KA, 1994) and infectivity (Arya SK, 1985; Fisher AG, 1986). In addition, during acute infection, Tat is released extracellularly by infected cells (Chang HC, 1997; Ensoli B, 1990) and is taken up by neighboring cells where it transactivates viral replication (Ensoli B, 1993) and increases virus infectivity.
HIV-1 Tat activates transcription of HIV-1 viral genes by inducing phosphorylation of the C-terminal domain (CTD) of RNA polymerase II (RNAPII). Tat can also disturb cellular metabolism by inhibiting proliferation of antigen-specific T lymphocytes and by inducing cellular apoptosis. Tat-induced apoptosis of T-cells is attributed, in part, to the distortion of microtubules polymerization. LIS1 is a microtubule-associated protein that facilitates microtubule polymerization. -
Physical Appearance
Sterile Filtered and lyophilized, though might appear as a solution as a result of the glycerol content.
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Stability
Lyophilized HIV-1 TAT although stable at room temperature for 1 week, should be stored desiccated below -18°C. Upon reconstitution HIV-1 TAT should be stored at 4°C between 2-7 days and for future use below -18°C.For long-term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Please prevent freeze-thaw cycles.
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Solubility
It is recommended to reconstitute the lyophilized HIV-1 TAT in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
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Amino Acid Sequence
MEPVDPRLEP WKHPGSQPKT ACTNCYCKKC CFHCQVCFIT KALGISYGRK KRRQRRRPPQ GSQTHQVSLS KQPTSQSRGD PTGPKE.
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Specificity
Immunoreactive with all sera of HIV-1 infected individuals.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
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Name :
RELM g Mouse, HisDescription:
RELM-Gamma Mouse Recombinant, His Tag
Resistin-like gamma, RELMgamma,RELM-γ, RELM-g.
Product # :
CYT-455Price :
Quantity :
Shipping Method :
Shipped at Room temp
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Description
RELM-gamma Mouse Recombinant is a His -Tagged Fusion Protein having a molecular weight of 11 kDa containing 86 amino acid residues of the RELM-gamma Mouse and 16 additional amino acid residues – HisTag (underlined).
Source
Escherichia Coli.
Formulation
Filtered (0.4µm) and lyophilized from 0.5 mg/ml in 0.05M Acetate buffer pH-4.
Purity
Greater than 95% as determined by SDS-PAGE.
More Info
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Introduction
RELM-gamma is a novel member of the resistin-like molecule/found in inflammatory zone (RELM/FIZZ) family in mice and rats. Microarray and real-time RT-PCR experiments revealed a repression of RELMgamma mRNA in nasal respiratory epithelium of cigarette smoke-exposed versus untreated rats. The analysis of the physiological tissue-specific expression revealed highest expression in hematopoietic tissues, suggesting a cytokine-like role for RELM-gamma. RELM-gamma-mRNA is detectable in bone marrow, spleen, and lung as well as in peripheral blood granulocytes. Promyelocytic HL60 cells transfected with a RELM-gamma expression plasmid have an increased proliferation rate compared to mock-transfected cells and display an altered response to retinoic acid-induced granulocytic differentiation. Taken together, these data provide the first experimental evidence that RELM-gamma is a secreted molecule with a restricted expression pattern that may play a role in promyelocytic differentiation.
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Synonyms
Resistin-like gamma, RELMgamma,RELM-γ, RELM-g.
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Physical Appearance
Filtered White lyophilized (freeze-dried) powder.
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Stability
Store lyophilized protein at -20°C. Aliquot the product after reconstitution to avoid repeated freezing/thawing cycles. Reconstituted protein can be stored at 4°C for a limited period of time; it does not show any change after two weeks at 4°C.The lyophilized protein remains stable until the expiry date when stored at -20°C.
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Solubility
It is recommended to add 0.1M Acetate buffer pH4 to prepare a working stock solution of approximately 0.5 mg/ml and let the lyophilized pellet dissolve completely. For conversion into higher pH value, we recommend intensive dilution by relevant buffer to a concentration of 10µg/ml. In higher concentrations the solubility of this antigen is limited. Product is not sterile! Please filter the product by an appropriate sterile filter before using it in the cell culture.
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Amino Acid Sequence
MRGSHHHHHH GMASHMTLES IVEKKVKELL ANRDDCPSTV TKTFSCTSIT ASGRLASCPS GMTVTGCACG YGCGSWDIRD GNTCHCQCST MDWATARCCQ LA.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
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Name :
KLK3 Human, NativeDescription:
Kallikrein-3 Human
Prostate-specific antigen, PSA, Gamma-seminoprotein, Seminin, Kallikrein-3, P-30 antigen, Semenogelase, KLK3, APS, hK3, KLK2A1
Product # :
ENZ-1172Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
Human Kallikrein-3 produced in Human seminal fluid having a molecular mass of approximately 30kD.
Source
Human seminal fluid.
Formulation
The protein solution (0.2 µm filtered) is in 0.09% NaN3, 0.05M phosphate buffer, 150mM NaCl, pH 7.5.
Purity
Greater than 96.0%.
More Info
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Introduction
Kallikrein-3 (KLK3) is a part of the kallikrein-related peptidase family. Kallikreins are a subgroup of serine proteases having various physiological functions. Numerous kallikreins take part in carcinogenesis and some may be prospective cancer and other disease biomarkers. Kallikrein-3 is 1 of the 15 kallikrein subfamily members located in a cluster on chromosome 19 and is a protease present in seminal plasma. KLK3 hydrolyzes semenogelin-1 consequently leading to the liquefaction of the seminal coagulum. KLK3 acts normally in the liquefaction of seminal coagulum, probably by hydrolysis of the high molecular mass seminal vesicle protein. Serum level of the KLK3 protein, called PSA in the clinical setting, is beneficial in the diagnosis and monitoring of prostatic carcinoma.
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Synonyms
Prostate-specific antigen, PSA, Gamma-seminoprotein, Seminin, Kallikrein-3, P-30 antigen, Semenogelase, KLK3, APS, hK3, KLK2A1
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Physical Appearance
Sterile Filtered clear solution.
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Stability
Human Kallikrein-3 should be stored at 2-8°C. Do not freeze!
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Human Virus Test
Starting material donor has been tested and certified negative for antibodies to HIV-1, HIV-2, HCV, HBSAG, Syphilis and HIV/HBV/HCV (PCR).
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
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Name :
IL 1 alpha RatDescription:
Interleukin-1 alpha Rat Recombinant
Hematopoietin-1, Lymphocyte-activating factor (LAF), Endogenous Pyrogen (EP), Leukocyte Endogenous Mediator (LEM), Mononuclear Cell Factor (MCF), IL-1 alpha,IL1, IL-1A, IL1F1.
Product # :
CYT-381Price :
Quantity :
Shipping Method :
Shipped at Room temp
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Description
Interleukin-1A Rat Recombinant produced in E.Coli is single, a non-glycosylated, Polypeptide chain containing 155 amino acids and having a molecular mass of 17703 Dalton. The IL-1A is purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
The protein was lyophilized from a concentrated (1mg/ml) sterile solution containing 50mM Tris-HCl, pH=8.
Purity
Greater than 98.0% as determined by:
(a) Analysis by RP-HPLC.
(b) Analysis by SDS-PAGE.Biological Activity
The ED50 as determined by the dose-dependant stimulation of murine D10S cells is < 0.005 ng/ml, corresponding to a Specific Activity of 200,000,000IU/mg.More Info
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Introduction
Interleukin-1 alpha is a proinflammatory cytokine produced by a wide variety of cell types, including macrophages, osteoblasts, monocytes and hepatocytes. Circulating levels of are normally low and only rise after stimulation by agents such as those produced byinflammation, infection or microbial endotoxins. IL-1 alpha possesses a wide variety of biological activities and exerts its effects by binding to specific cell surface receptors.
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Synonyms
Hematopoietin-1, Lymphocyte-activating factor (LAF), Endogenous Pyrogen (EP), Leukocyte Endogenous Mediator (LEM), Mononuclear Cell Factor (MCF), IL-1 alpha,IL1, IL-1A, IL1F1.
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Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
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Stability
Lyophilized Interleukin-1a although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution IL1A should be stored at 4°C between 2-7 days and for future use below -18°C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Please prevent freeze-thaw cycles.
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Solubility
It is recommended to reconstitute the lyophilized Interleukin 1a in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
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Amino Acid Sequence
The sequence of the first five N-terminal amino acids was determined and was found to be Ala-Pro-His-Ser-Phe.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
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Name :
IL 13 RatDescription:
Interleukin-13 Rat Recombinant
NC300, ALRH, BHR1, P600, IL-13.
Product # :
CYT-391Price :
Quantity :
Shipping Method :
Shipped at Room temp
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Description
Interleukin-13 Rat Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 113 amino acids and having a molecular mass of 12.7 kDa.The IL-13 is purified by proprietary chromatographic techniques.
Source
Escherichia Coli.
Formulation
The protein (1mg/ml) was lyophilized with no additives.
Purity
Greater than 95% as determined by SDS-PAGE.
Biological Activity
ED50 range = 2-6 ng/mL as determined by the dose dependent proliferation of human TF-1 cells. Optimal concentration for individual application should be determined by a dose response assay.More Info
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Introduction
IL13 is an immunoregulatory cytokine produced primarily by activated Th2 cells. IL-13 is involved in several stages of B-cell maturation and differentiation. It up-regulates CD23 and MHC class II expression, and promotes IgE isotype switching of B cells. This cytokine down-regulates macrophage activity, thereby inhibits the production of pro-inflammatory cytokines and chemokines. This cytokine is found to be critical to the pathogenesis of allergen-induced asthma but operates through mechanisms independent of IgE and eosinophils. This gene, IL3, IL5, IL4, and CSF2 form a cytokine gene cluster on chromosome 5q, with this gene particularly close to IL4.
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Synonyms
NC300, ALRH, BHR1, P600, IL-13.
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Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
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Stability
Lyophilized Interleukin-13 although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution IL13 should be stored at 4°C between 2-7 days and for future use below -18°C.For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Please prevent freeze-thaw cycles.
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Solubility
It is recommended to reconstitute the lyophilized Interleukin 13 in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
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Protein content
Protein quantitation was carried out by two independent methods:1. UV spectroscopy at 280 nm using the absorbency value of 0.69 as the extinction coefficient for a 0.1% (1mg/ml) solution. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics). 2. Analysis by RP-HPLC, using a calibrated solution of IL-13 as a Reference Standard.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
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Name :
HCV NS3 Genotype-1b C33CDescription:
Hepatitis C Virus NS3 Genotype-1b C33C Recombinant
Product # :
HCV-271Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
Recombinant Hepatitis C Virus NS3 Genotype-1b C33C (40-315 aa) produced in E. coli having 226 aa.Recombinant Hepatitis C Virus NS3 Genotype-1b C33C is fused to a 6xHis tag at C-Terminus and purified by proprietary chromatographic technique.
Source
Escherichia Coli.
Formulation
HCV NS3 Genotype-1b C33C solution contains 50mM potassium phosphate buffer.
Purity
Protein is >90% pure as determined by 10% PAGE (coomassie staining).
More Info
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Introduction
HCV is a small 50nm, enveloped, single-stranded, positive sense RNAvirus in the family Flaviviridae. HCV has a high rate of replication with approximately one trillion particles produced each day in an infected individual. Due to lack of proofreading by the HCV RNA polymerase, the HCV has an exceptionally high mutation rate, a factor that may help it elude the host's immune response. Hepatitis C virus is classified into six genotypes(1-6) with several subtypes within each genotype. The preponderance and distribution of HCV genotypes varies globally. Genotype is clinically important in determining potential response to interferon-based therapy and the required duration of such therapy. Genotypes 1 and 4 are less responsive to interferon-based treatment than are the other genotypes (2, 3, 5 and 6). HCV NS3 (genotype 1b) contains 2 domains which are serine protinase and helicase. C33c is a fragment of NS3 containing the most important epitopes recognized by HCV antibody.
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Physical Appearance
Sterile Filtered clear solution.
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Stability
Store at 4°C if entire vial will be used within 2-4 weeks.Store, frozen at -20°C for longer periods of time.For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Avoid multiple freeze-thaw cycles.
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Applications
ELISA and lateral flow assay.
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.