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1000 results found for “Anti Viral”
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Name :
CoV-2 S1, Sf9Description:
Coronavirus 2019 Spike Glycoprotein-S1 Sf9, Recombinant
Product # :
SARS-019Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
The Sf9 derived recombinant protein contains the Coronavirus 2019 CoV-2 Spike Glycoprotein S1, Wuhan-Hu-1 strain, amino acids 1-674 fused to His tag at C-terminal.
Source
Sf9, Baculovirus Cells.
Formulation
CoV-2 S1 protein solution is supplied in DPBS.
Purity
Protein is >85% 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-2 S1 Glycoprotein is shipped on ice packs. Upon arrival, Store at -20°C.
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Purification Method
Purified by Metal-Afinity 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 :
S.Typhi HDescription:
Salmonella Typhi H Antigen Recombinant
Product # :
STY-001Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
Recombinant Salmonella Typhi H Antigen produced in E.coli is full length flagellin sequence and fused to a 6 His Tag at C-terminus, migrating as a 35kDa band on SDS-PAGE.S. typhi H antigen is a flagellin protein, which strongly reacts to specific IgM and IgG produced in infected patients.
Source
Escherichia Coli.
Formulation
Sterile Filtered solution containing PBS and 25mM arginine.
Purity
Protein is >95% pure as determined by 10% PAGE (coomassie staining).
More Info
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Introduction
Salmonella Typhi is a pathogen causing typhoid fever, affecting over 17 million people with approximately 600,000 deaths annually worldwide. If untreated, typhoid fever cases result in mortality rates ranging from 12-30%.
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Physical Appearance
Sterile Filtered solution.
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Stability
S.Typhi H although stable at 4°C for 1 week, should be stored below -18°C. Please prevent freeze thaw cycles.
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Applications
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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Name :
MX2 HumanDescription:
Myxovirus Resistance 2 Human Recombinant
Myxovirus (Influenza Virus) Resistance 2 (Homolog Of Mouse), Myxovirus Resistance Protein 2, P78-Related Protein.
Product # :
PRO-1837Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
MX2 Human Recombinant produced in E.coli is a single, non-glycosylated polypeptide chain containing 126 amino acids (626-715) and having a molecular mass of 14.9 kDa. MX2 is fused to a 36 amino acid His-tag at N-terminus.
Source
Escherichia Coli.
Formulation
The MX2 solution (1mg/ml) contains 20mM Tris-HCl buffer (pH 8.0), 0.4M Urea and 10% glycerol.
Purity
Greater than 90% as determined by SDS-PAGE.
More Info
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Introduction
MX2 is a member of 2 protein families: the dynamin family and the large GTPases family. MX2 has a cytoplasmic and nuclear structure which is found in a granular pattern in the heterochromatin region under the nuclear envelope. The nuclear form has a NLS (nuclear localization signal) at the amino terminal end however it is missing in the cytoplasmic form as a result of the use of a different translation start codon. MX2 is upregulated by IFN-a, but unlike myxovirus resistance protein 1 has no antiviral activity.
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Synonyms
Myxovirus (Influenza Virus) Resistance 2 (Homolog Of Mouse), Myxovirus Resistance Protein 2, P78-Related Protein.
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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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Amino Acid Sequence
MRGSHHHHHH GMASMTGGQQ MGRDLYDDDD KDRWGSIGIH LNAYFLETSK RLANQIPFII QYFMLRENGD SLQKAMMQIL QEKNRYSWLL QEQSETATKR RILKERIYRL TQARHALCQF SSKEIH
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 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.
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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 NS5 Genotype-1bDescription:
Hepatitis C Virus NS5 Genotype-1b Recombinant
Product # :
HCV-228Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
The E.coli derived recombinant protein contains the HCV NS5 Genotype1b immunodominant regions, amino acids 2212-2313. The protein is fused to a GST tag at N-terminus.
Source
Escherichia Coli.
Formulation
1.5M urea, 25mM Tris-HCl pH 8.0, 0.2% Triton-X and 50% Glycerol.
Purity
HCV NS5 Genotype-1b protein is >95% pure as determined by SDS- 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). -
Physical Appearance
Sterile Filtered clear solution.
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Stability
HCV NS5 Genotype-1b 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-1b 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-1b 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 :
HCV NS5 Genotype-5Description:
Hepatitis C Virus NS5 Genotype-5 Recombinant
Product # :
HCV-223Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
The E.coli derived recombinant protein contains the HCV NS5 Genotype 5 immunodominant regions, amino acids 2212-2313.
Formulation
1.5M urea, 25 mM Tris-HCl, pH-8, 0.2% Triton-X & 50% Glycerol.
Purity
HCV NS5 Genotype-5 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-5 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-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 NS5 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.
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Name :
HPV 18Description:
Human Papillomavirus 18 Recombinant
Papillomavirus, HPV, Papilloma Virus.
Product # :
HPV-002Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
The Recombinant HPV-18 is a full length large capsid protein having an Mw of 55kDa expressed in E. coli and fused to a GST-Tag at n-terminal, having a total Mw of 78kDa, purified by standard chromatography.
Source
E.Coli
Formulation
Recombinant HPV-18 solution in PBS and 2M Urea.
Purity
Protein is >90% pure as determined by 10% PAGE (Coomassie staining).
More Info
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Introduction
Human papillomavirus family consist of over 200 types. Over than 30 to 40 types of HPV are transferred via sexual contact and infect the anogenital region initiating genital warts. Persistent infection with "high-risk" HPV types results in skin warts and leads to precancerous lesions and invasive cancer. HPV infection is considered as a source for all incidents of cervical cancer. E2, E6, and E7 proteins of HPV-16 and 18 are considered the main viral oncoproteins that take part in cervical cancer. The type-specific antigen epitopes of E2, E6, and E7 proteins of HPV-16 are fused together and expressed in E. coli for diagnostic purpose.
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Synonyms
Papillomavirus, HPV, Papilloma Virus.
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Physical Appearance
Sterile filtered clear liquid formulation.
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Amino Acid Sequence
VDVYLPPPSVARVVNTDDYVTPTSIFYHAGSSRLLTVGNPYFRVPAGGG
NKQDIPKVSAYQYRVFRVQLPDPNKFGLPDTSIYNPETQRLVWACAGVE
IGRGQPLGVGLSGHPFYNKLDDTESSHAATSNVSEDVRDNVSVDYKQTQ
LCILGCAPAIGEHWAKGTACKSRPLSQGDCPPLELKNTVLEDGDMVDTG
YGAMDFSTLQDTKCEVPLDICQSICKYPDYLQMSADPYGDSMFFCLRRE
QLFARHFWNRAGTMGDTVPQSLYIKGTGMPASPGSCVYSPSPSGSIVTS
DSQLFNKPYWLHKAQGHNNGVCWHNQLFVTVVDTTPSTNLTICASTQSP
VPGQYDATKFKQYSRHVEEYDLQFIFQLCTITLTADVMSYIHSMNSSIL
EDWNFGVPPPPTTSLVDTYRFVQSVAITCQKDAAPAENKDPYDKLKFWN
VDLKEKFSLDLDQYPLGRKFLVQAGLRRKPTIGPRKRSAPSATTSSKPA.
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 :
HBsAg aywDescription:
Hepatitis B Surface Antigen, ayw Recombinant
Product # :
HBS-870Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
The Saccharomyces cerevisae derived recombinant full length protein contains the HBV surface antigen, having an Mw of 18kDa (ayw) and is fused to 6 His Tag at C-terminus. HBsAg contains re-S2 protein region excluding the hydrophobic regions and runs as a multimer on SDS-PAGE ie. Monomer, Dimer, Trimer, etc...
Source
Saccharomyces cerevisae.
Formulation
HBsAg solution (1mg/ml) containing 7.5mM phosphate buffer pH 7.2, 75mM NaCl and 50% glycerol.
Purity
Greater than 99.0% as determined by SDS-PAGE.
More Info
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Introduction
HBsAg is the surface antigen of the Hepatitis-B-Virus (HBV). The capsid of a virus has different surface proteins from the rest of the virus. The antigen is a protein that binds specifically on one of these surface proteins. It is commonly referred to as the Australian Antigen.
Recombinant HbsAg ayw full length is a 24kDa protein cloned from HBV 320 genome. -
Physical Appearance
Sterile Filtered clear solution.
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Stability
HBsAg although stable at 4°C for 1 week, should be stored below -18°C. Please prevent freeze thaw cycles.
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Amino Acid Sequence
MTRILTIPQS LDSWWTSLNF LGGSPVCLGQ NSQSPTSNHS PTSCPPICPG YRWMCGMLPV CPLIPGSTTT STGPCKTCTT PAQGNSKFPS CCCTKPTDGN CTCIPIPSSW AFAKYLWEWA SVRFSWLSLL VPFVQWFVGL SPTVWLSAIW MMWYWGHHHH HH
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Specificity
Immunoreactive with sera HBV-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 :
Chlamydia W4Description:
Chlamydia Trachomatis W4 Recombinant
Product # :
CHT-002Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
The E.coli derived recombinant 6xHis fusion at C-terminus protein contains Chlamydia Trachomatis MOMP protein epitopes, 191-286 amino acids.
Source
Escherichia Coli.
Formulation
(1mg/1ml) 20mM Tris-HCl, pH 7.2, 50% glycerol and 1.5M urea.
Purity
Protein is >90% pure as determined by SDS PAGE.
More Info
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Introduction
Chlamydia is a common term for infection with any bacterium belonging to the phylum Chlamydiae. This term derives from the name of the bacterial genus Chlamydiain the family Chlamydiaceae, order Chlamydiales, class and phylum Chlamydiae. There are two genera in Chlamydiaceae: Chlamydia and Chlamydophila. The genus Chlamydia includes three species: C. trachomatis, C. muridarum, and C. suis.
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Stability
Chlamydia W4 protein although stable at 4°C for 1 week, should be stored below -18°C. Please prevent freeze thaw cycles.
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Applications
ELISA, WB and Flow-Through.
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Specificity
Immunoreactive with sera of Chlamydia Trachomatis W4-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 :
CoV-2 N (196 a.a.)Description:
Coronavirus 2019 Nucleocapsid (196 a.a.), Recombinant
Product # :
SARS-042Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
The E.Coli derived recombinant protein contains the Coronavirus 2019 middle region a.a. from the Nucleocapsid protein and fused to GST-6xHis tag at N-terminal and having a Mw. Of 48.4 kDa.
Source
E.Coli.
Formulation
CoV-2 Nucleocapsid protein solution is supplied in 50mM Tris-HCl pH 8, 1M Urea, and 50% Glycerol.
Purity
CoV-2 Nucleocapsid 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.
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-2 Spike Protein is shipped on ice packs. Upon arrival, Store at -20°C.
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Purification Method
NTA Sepharose-Affinity Purification.
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 :
SARS MERS, Sf9 ActiveDescription:
SARS MERS Spike Recombinant, Sf9 Active
Middle East respiratory syndrome coronavirus, Human betacoronavirus 2c EMC/2012, MERS-CoV, MERS, MERSCoV SP, Spike glycoprotein, S glycoprotein, S, Spike protein, E2, Peplomer protein
Product # :
SARS-061Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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- biological activity
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Description
SARS MERS Recombinant produced in Sf9 Baculovirus cells is a single, glycosylated polypeptide chain containing 1285 amino acids (18-1296 aa) and having a molecular mass of 141.6kDa. SARS MERS is fused to a 6 amino acid His-tag at C-terminus & purified by proprietary chromatographic techniques.
Source
Sf9, Baculovirus cells.
Formulation
The SARS MERS solution (0.25mg/ml) contains 10% glycerol and Phosphate-Buffered Saline (pH 7.4).
Purity
Greater than 85.0% as determined by SDS-PAGE.
Biological Activity
Measured by its binding ability in a functional ELISA with Human DPPIV/CD26 (CAT# enz-1187).
More Info
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Synonyms
Middle East respiratory syndrome coronavirus, Human betacoronavirus 2c EMC/2012, MERS-CoV, MERS, MERSCoV SP, Spike glycoprotein, S glycoprotein, S, Spike protein, E2, Peplomer 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
YVDVGPDSVK SACIEVDIQQ TFFDKTWPRP IDVSKADGII YPQGRTYSNI TITYQGLFPY QGDHGDMYVY SAGHATGTTP QKLFVANYSQ DVKQFANGFV VRIGAAANST GTVIISPSTS ATIRKIYPAF MLGSSVGNFS DGKMGRFFNH TLVLLPDGCG TLLRAFYCIL EPRSGNHCPA GNSYTSFATY HTPATDCSDG NYNRNASLNS FKEYFNLRNC TFMYTYNITE DEILEWFGIT QTAQGVHLFS SRYVDLYGGN MFQFATLPVY DTIKYYSIIP HSIRSIQSDR KAWAAFYVYK LQPLTFLLDF SVDGYIRRAI DCGFNDLSQL HCSYESFDVE SGVYSVSSFE AKPSGSVVEQ AEGVECDFSP LLSGTPPQVY NFKRLVFTNC NYNLTKLLSL FSVNDFTCSQ ISPAAIASNC YSSLILDYFS YPLSMKSDLS VSSAGPISQF NYKQSFSNPT CLILATVPHN LTTITKPLKY SYINKCSRLL SDDRTEVPQL VNANQYSPCV SIVPSTVWED GDYYRKQLSP LEGGGWLVAS GSTVAMTEQL QMGFGITVQY GTDTNSVCPK LEFANDTKIA SQLGNCVEYS LYGVSGRGVF QNCTAVGVRQ QRFVYDAYQN LVGYYSDDGN YYCLRACVSV PVSVIYDKET KTHATLFGSV ACEHISSTMS QYSRSTRSML KRRDSTYGPL QTPVGCVLGL VNSSLFVEDC KLPLGQSLCA LPDTPSTLTP RSVRSVPGEM RLASIAFNHP IQVDQLNSSY FKLSIPTNFS FGVTQEYIQT TIQKVTVDCK QYVCNGFQKC EQLLREYGQF CSKINQALHG ANLRQDDSVR NLFASVKSSQ SSPIIPGFGG DFNLTLLEPV SISTGSRSAR SAIEDLLFDK VTIADPGYMQ GYDDCMQQGP ASARDLICAQ YVAGYKVLPP LMDVNMEAAY TSSLLGSIAG VGWTAGLSSF AAIPFAQSIF YRLNGVGITQ QVLSENQKLI ANKFNQALGA MQTGFTTTNE AFQKVQDAVN NNAQALSKLA SELSNTFGAI SASIGDIIQR LDVLEQDAQI DRLINGRLTT LNAFVAQQLV RSESAALSAQ LAKDKVNECV KAQSKRSGFC GQGTHIVSFV VNAPNGLYFM HVGYYPSNHI EVVSAYGLCD AANPTNCIAP VNGYFIKTNN TRIVDEWSYT GSSFYAPEPI TSLNTKYVAP QVTYQNISTN LPPPLLGNST GIDFQDELDE FFKNVSTSIP NFGSLTQINT TLLDLTYEML SLQQVVKALN ESYIDLKELG NYTYYNKWPH HHHHH.
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Background
Severe acute respiratory syndrome coronavirus (SARS-CoV) and Middle East respiratory syndrome coronavirus (MERS-CoV) have caused significant outbreaks with severe respiratory illness in recent years. The spike proteins of these viruses play a crucial role in viral entry and host cell recognition. This research aims to explore the structure, function, and implications of SARS and MERS spike proteins in viral pathogenesis and the development of therapeutic interventions. Understanding the mechanisms of viral entry can provide valuable insights into the design of effective antiviral strategies.
Structure and Function of SARS and MERS Spike Proteins:
The spike proteins of SARS-CoV and MERS-CoV are trimeric glycoproteins located on the viral surface. They consist of S1 and S2 subunits, with the S1 subunit responsible for receptor binding and the S2 subunit involved in membrane fusion. The spike proteins contain key domains, including the receptor-binding domain (RBD) and the fusion peptide, which mediate the interactions with host cell receptors and membrane fusion during viral entry.
Interaction with Host Cell Receptors:
The SARS-CoV spike protein primarily interacts with the angiotensin-converting enzyme 2 (ACE2) receptor, which is expressed in various tissues, including the respiratory tract. The binding of the SARS-CoV spike protein to ACE2 is crucial for viral entry into host cells. Similarly, the MERS-CoV spike protein interacts with the dipeptidyl peptidase 4 (DPP4) receptor, which is predominantly expressed in the lungs and other tissues. These receptor interactions determine the host range and tissue tropism of the viruses.
Implications for Viral Pathogenesis:
The interaction between the spike proteins of SARS-CoV and MERS-CoV and their respective receptors initiates a cascade of events leading to viral entry and replication. The binding of the spike protein to the receptor triggers conformational changes that expose the fusion peptide, facilitating membrane fusion and viral entry into host cells. The specificity and affinity of the spike-receptor interaction play a critical role in determining viral tropism, disease severity, and transmission dynamics.
Therapeutic Strategies Targeting Spike Proteins:
The spike proteins of SARS-CoV and MERS-CoV present attractive targets for the development of antiviral interventions. Various approaches have been explored, including the development of neutralizing antibodies that specifically target the spike proteins and inhibit viral entry. Additionally, small molecule inhibitors and peptide-based therapeutics are being investigated to disrupt the spike-receptor interaction and block viral entry. Vaccine development efforts have also focused on generating immune responses against the spike proteins to prevent infection.
Challenges and Future Directions:
Although significant progress has been made in understanding the structure and function of SARS and MERS spike proteins, several challenges remain. The emergence of novel coronavirus variants necessitates continuous surveillance and adaptation of therapeutic strategies. Additionally, potential cross-reactivity and immunogenicity concerns need to be addressed to ensure the safety and efficacy of spike protein-based therapeutics.
Conclusion:
The study of SARS and MERS spike proteins provides valuable insights into the mechanisms of viral entry and pathogenesis. Understanding the interactions between spike proteins and host cell receptors is crucial for the development of effective antiviral strategies. Further research on spike protein structure, receptor binding, and fusion mechanisms is essential to combat current and future coronavirus outbreaks. By unraveling the complexities of viral entry, we can pave the way for the development of novel therapeutics to mitigate the impact of SARS-CoV, MERS-CoV, and related coronaviruses.
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-4Description:
Hepatitis C Virus NS5 Genotype-4 Recombinant
Product # :
HCV-222Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
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Description
The E.coli derived recombinant protein contains the HCV NS5 Genotype 4 immunodominant regions, amino acids 2212-2313. The protein is fused with GST tag at N-terminus.
Formulation
1.5M urea, 25mM Tris-HCl, pH-8, 0.2% Triton-X & 50% Glycerol.
Purity
HCV NS5 Genotype-4 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-4 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-4 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-4 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 :
SARS Spike (1-666)Description:
SARS Spike (1-666 a.a.), Recombinant
Product # :
SARS-025Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
More Info
- description
- source
- formulation
- purity
- More Info
Description
The HEK293 derived recombinant protein contains the SARS Coronavirus Spike S1 Gycoprotein, amino acids 1-666 fused to His tag at C-terminal.
Source
HEK293
Formulation
SARS CoV-Spike S1 protein solution is supplied in DPBS.
Purity
Protein is >85% pure as determined SDS-PAGE.
More Info
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Introduction
SARS Coronavirus is an enveloped virus containing three outer structural proteins, namely the membrane (M), envelope (E), and spike (S) proteins. Spike (S)-glycoprotein of the virus interacts with a cellular receptor and mediates membrane fusion to allow viral entry into susceptible target cells. Accordingly, S-protein plays an important role in virus infection cycle and is the primary target of neutralizing antibodies.
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Physical Appearance
Sterile Filtered clear solution.
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Stability
SARS CoV Spike S1 is shipped on ice packs. Upon arrival, Store at -20°C.
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Purification Method
Purified by immobilized metal 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.
- View Data Sheet
Name :
CoV-2 N (1-419), HEKDescription:
Coronavirus 2019 Nucleocapsid (1-419 a.a.), Recombinant, HEK
Product # :
SARS-035Price :
Quantity :
Shipping Method :
Shipped at Room temp
More Info
- description
- source
- formulation
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Description
The HEK293 derived recombinant protein contains the Coronavirus 2019 CoV-2 Nucleocapsid, Wuhan-Hu-1 strain, amino acids 1-419 fused to His tag at C-terminal having a calculated Mw of 47.3 kDa and migrating between 60-65 due to glycosylation.
Source
HEK293 Cells.
Formulation
CoV-2 Nucleocapsid protein is supplied in 1x PBS pH-7.4 & 10% trehalose.
Purity
Protein is >95% pure as determined SDS-PAGE.
More Info
-
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 White lyophilized (freeze-dried) powder.
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Stability
Lyophilized Cov-2 Nucleocapsid protein although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution CoV2 Nucleocapsid protein 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 add deionized water to prepare a working stock solution of approximately 0.5mg/ml and let the lyophilized pellet dissolve completely.
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Purification Method
Purified by Metal-Afinity 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 :
HERV-KDescription:
Endogenous retrovirus K Envelope Human Recombinant
Product # :
HER-001Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
More Info
- description
- source
- formulation
- purity
- More Info
Description
The E.Coli derived HERV-K recombinant truncated protein is fused to a Six histidine tag at C-terminus and has a MW of 51.5kDa (pI 9.06).
Source
Escherichia Coli.
Formulation
10mM Tris-HCl, pH 7.2.
Purity
Protein is >90% pure as determined by SDS PAGE.
More Info
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Introduction
HERVK is related with several tumors such as passenger virus, and anti-Retroviral therapy against amyotrophic lateral sclerosis/ALS has exhibited to decrease the symptoms of amyotrophic lateral sclerosis/ALS. High counts of viral sequences exist in the human genome but stay silent. Though, in pathological conditions, these viruses are produced. Human Endogenous Retrovirus-K, is produced in neurons of a subpopulation of patients with amyotrophic lateral sclerosis/ALS, a progressive neurodegenerative disease. The envelope protein of this HERV results in degeneration of neurons, and transgenic animals producing this protein advance an ALS-like syndrome triggered by nucleolar dysfunction in motor neurons. Reactivation of the HERVK is controlled by the transcription factor TDP-43. Therefore, therapeutic tactics against this virus alter the course of the disease.
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Physical Appearance
Sterile Filtered clear solution.
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Stability
HERV-K although stable at 4°C for 1 week, should be stored below -18°C. Please prevent freeze thaw cycles.
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Amino Acid Sequence
MWTVPSFTND SYQVYNVFST NSFQLLTVKR TPHEAWRVPL TTKTNKTKGL PDCPKKPTNG PFIVTSILWD NCNAPKAVVL QTLAMGIVID WAPKGHYWQD CSSKNTLCSE FIYSLDYIEH GWQSYTMRQR VSPYPFKWMD TGIAPPRPKI IHPFFTPEHP ELWKLAAALS GIKIWNTTYQ LLRTKTKTPT FNITLISEWV IPIRSCVKPP YMLLVGNIIM MPDAQTIECH NCKLFTCIDA TFNPTTSILL VRAREGVWIP VSLHRPWESS PSIHIVNEVL KDILKRTKRF IFTLIAVLAG LLAVTATAAT AGVAIRSSVQ TAHYVEACQK NSSRLWNSQA QIDQKLANQI NDLRQSVTWL GDRVMNLQHR MQLQCDWNTS DYCITPYAYN QDQHSWENVS RHLKAWDDNL TLDISQLKEQIFEASQAHLS TVPGSHIFEG ITKQLPDFNP FKWLKPVRGS LLLLALLILV CLCCLLLVCRCL.
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Applications
Detection of Human Endogenious Retrovirus K in individuals is untested.
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 :
CMV MosaicDescription:
Cytomegalo Virus Mosaic Recombinant
Product # :
CMV-217Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
More Info
- description
- source
- formulation
- purity
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Description
The E.Coli derived Recombinant Cytomegalo Virus Mosaic contains the multiple epitopes from P150-P52-P38-P65-P28 having a molecular weight of 40kDa.The CMV Mosaic is fused to a 6xHis tag and purified by proprietary chromatographic technique.
Source
Escherichia Coli.
Formulation
CMV Mosaic protein solution contains Phosphate buffered saline, 2M urea and 100mM arginine.
Purity
CMV Mosaic is >85% pure as determined by 12% PAGE (coomassie staining).
More Info
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Introduction
CMV belongs to the Betaherpesvirinae subfamily of Herpesviridae which includes herpes simplex virustypes 1 and 2, varicella-zoster virus, and Epstein-Barrvirus. The herpesviruses share a characteristic ability to remain latentover long periods. CMV is a double-stranded linear DNA virus with 162 hexagonal protein capsomeres surrounded by a lipid membrane. CMV has the largest genome of the herpes viruses, ranging from 230-240 kilobase pairs. Human CMV is composed of unique and inverted repeats that include the existence of 4 genome isomers caused by inversion of L-S genome components (class E). Replication may be divided into immediate early, delayed early, and late gene expression based on time of synthesis after infection. The DNA is replicated by rolling circles. In vitro, CMV replicates in human fibroblasts.
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Physical Appearance
Sterile filtered colorless solution.
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Stability
CMV Mosaic protein although stable at 4°C for 1 week, should be stored below -18°C. Please prevent 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 :
HTLV-1 p24 coreDescription:
HTLV-1 p24 Core Recombinant
Product # :
HIV-108Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
More Info
- description
- formulation
- purity
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Description
The E.Coli derived recombinant protein contains the full-length sequence of HTLV-I p24, spanning all of p24.The protein contains 214 amino acids having an Mw of 24kDa.
Formulation
10mM NaPO4 pH 6.0, containing 1mM DTT & 1mM EDTA.
Purity
HTLV-1 p24 protein is >95% pure as determined by 10% PAGE (coomassie staining) and RP-HPLC.
More Info
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Introduction
Human T-lymphotropic virus (HTLV) is a human, single-stranded RNA retrovirus that causes T-cell leukemia and T-cell lymphoma. The virus activates a subset of T-helper cellscalled Th1cells. The result is a proliferation of Th1 cells and overproduction of Th1 related cytokines (mainly IFN-gamma and TNF-alpha). Feedback mechanisms of these cytokines cause a suppression of the Th2 lymphocytes and a reduction of Th2 cytokine production (mainly IL-4, IL-5, IL-10 and IL-13). The end result is a reduction in the ability of the infected host to mount an adequate immune response to invading organisms that require a predominantly Th2 dependant response (these include parasitic infections and production of mucosal and humoral antibodies).
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Stability
HTLV-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
HTLV-1 p24 antigen can be used 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 HTLV-1 infected individuals.
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Purification Method
HTLV-1 p24 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 :
SARS Mosaic S(M)Description:
SARS-Associated Coronavirus Spike Mosaic S (M) Recombinant
Product # :
SARS-256Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
More Info
- description
- formulation
- purity
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Description
The E.Coli derived 38 kDa recombinant mosaic protein contains the middle section of the Spike protein 408-470, 540-573 amino acids immunodominant regions.
Formulation
25mM Tris-HCl, 0.4% sarcosyl, 0.25% Triton –100 and 50% glycerol.
Purity
SARS Mosaic protein is >95% pure as determined by 10% PAGE (Coomassie staining).
More Info
-
Introduction
SARS Coronavirus is an enveloped virus containing three outer structural proteins, namely the membrane (M), envelope (E), and spike (S) proteins. Spike (S)-glycoprotein of the virus interacts with a cellular receptor and mediates membrane fusion to allow viral entry into susceptible target cells. Accordingly, S-protein plays an important role in virus infection cycle and is the primary target of neutralizing antibodies.
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Stability
SARS Mosaic protein is shipped at ambient temperature. Upon arrival, store at -20C.
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Applications
SARS Mosaic Antigen in ELISA and Western blots, excellent antigen for detection of SARS with minimal specificity problems.
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Specificity
Immunoreactive with sera of SARS-infected individuals.
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Purification Method
SARS Mosaic 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 S1 (1-681)Description:
Coronavirus 2019-nCoV Spike Glycoprotein-S1 (1-681), Recombinant
Product # :
SARS-045Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
More Info
- description
- source
- formulation
- purity
- More Info
Description
The HEK293 derived recombinant protein contains the Coronavirus 2019-nCoV Spike Glycoprotein S1, Wuhan-Hu-1 strain, amino acids 1-681 fused to Fc tag at C-terminal having a Mw of 76 kDa.
Source
HEK293.
Formulation
CoV-2 S1protein solution is supplied PBS pH 7.4.
Purity
Protein is >95% pure as determined SDS-PAGE.
More Info
-
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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Physical Appearance
Sterile Filtered clear solution.
-
Stability
Protein is shipped on ice packs. Upon arrival, Store at -20°C.
-
Purification Method
Purified by Protein-G chromatography 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
Description:
SARS-Associated Coronavirus Nuclecapsid (340-390 a.a.) Recombinant, His Tag
Product # :
SARS-006Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
More Info
- description
- source
- formulation
- purity
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Description
The E.coli derived recombinant protein contains the Nucleocapsid C-Terminal protein 340-390 amino acids immunodominant regions fused to 6xHis tag at C-terminal.
Source
Escherichia Coli.
Formulation
SARS Nucleocapsid protein solution is supplied in PBS.
Purity
Protein is >90% pure as determined SDS-PAGE.
More Info
-
Introduction
SARS-Associated Coronavirus Nuclecapsid is an enveloped viral componentthat contains three external structural antigens, the mains are membrane (M), envelope (E), and spike (S) proteins. Spike (S)-glycoprotein of the virus interacts with a membrenal receptor and mediates membrane fusion to grant viral entry into the target cells. therefore, S-protein has a crucial part in virus infection cycle and is the main target of neutralizing antibodies.
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Physical Appearance
Sterile Filtered clear solution.
-
Stability
Protein is shipped on ice packs. Upon arrival, Store at -20°C.
-
Specificity
Immunoreactive with sera of SARS-infected individuals.
-
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 :
CoV-2 S1 (16-685), FcDescription:
Coronavirus 2019 Spike Glycoprotein-S1 (16-685 a.a.), Fc Recombinant
Product # :
SARS-027Price :
Quantity :
Shipping Method :
Shipped at Room temp
More Info
- description
- source
- formulation
- purity
- More Info
Description
The HEK293 derived recombinant protein contains the Coronavirus 2019 CoV-2 Spike Glycoprotein S1, Wuhan-Hu-1 strain, amino acids 16-685 fused to Fc tag at C-terminal.
Source
HEK293 Cells.
Formulation
CoV-2 S1 protein is supplied in sodium chloride, glycine, arginine pH-7.5 & 5% trehalose.
Purity
Protein is >95% pure as determined SDS-PAGE.
More Info
-
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.
-
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
-
Stability
Lyophilized Cov-2 Spike S1 Glycoprotein although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution CoV2 Spike protein 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.
-
Purification Method
Purified by Protein-G 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 :
HBsAg ayw, 31kDaDescription:
Hepatitis B Surface Antigen ayw Recombinant
Product # :
HBS-877Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
More Info
- description
- source
- formulation
- purity
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Description
Recombinant HbsAg ayw full length is a 31kDa proteincloned from HBV 320 genome and fused to 6xHis Tag.
Source
Escherichia Coli.
Formulation
Sterile Filtered solution (1mg/ml) contains 7.5mM phosphate buffer pH-7.2, 75mM NaCl and 50% glycerol.
Purity
Greater than 99.0% as determined by SDS-PAGE.
More Info
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Introduction
HBsAg is the surface antigen of the Hepatitis-B-Virus (HBV). The capsid of a virus has different surface proteins from the rest of the virus. The antigen is a protein that binds specifically on one of these surface proteins. It is commonly referred to as the Australian Antigen.
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Physical Appearance
Sterile Filtered clear solution.
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Stability
HBsAg Should be stored at 4°C between 3-4 weeks and for future use should be stored below -18°C.
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Amino Acid Sequence
MGQNLSTSNP LGFFPDHQLD PAFRANTANP DWDFNPNKDT WPDANKVGAG AFGLGFTPPH
GGLLGWSPQA QGILQTLPTN PPPASTNRQS GRQPTPLSPP LRNTHPQAMQ WNSTTFHQTL
QDPRVRGLYF PAGGSSSGTV NPVPTTVSPI SSIFSRIGDP TRILTIPQSL DSWWTSLNFL
GGTTVCLGQN SQSPTSNHSP TSCPPTCGYR WMCLMLPVCP LIPGSSTTTG PCRTCTTPAQ
GTMYPSCCCT KPSDGNCTCP IPSSWAFGKF LWEWASHHHH HH
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-2 ProteaseDescription:
HIV-2 Protease Recombinant
Product # :
HIV-002Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
More Info
- description
- source
- formulation
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Description
HIV-2 protease is an active homodimer having a molecular mass of 10.7kDa.
Source
Escherichia Coli.
Formulation
The HIV-2 Protease solution (0.25mg/1ml) is formulated in 20mM Tris pH7.0, 20mM MES, 200mM NaCl, 1mM EDT, 0.5mM DTT, 0.05% PEG 8000and 10% glycerol.
More Info
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Introduction
HIV-2 protease is very significant in the life cycle of the HIV virus. It is expressed in the infected cells as a part of Gag-Pol polyprotein from which it is auto-catalytycaly released after formation of an immature viral particle. The enzyme subsequently cleaves the other parts of viral polyproteins resulting in the maturation of the virus. In HIV-infected patients the enzyme is subjected to intensive mutagenesis and mutants resistant to applied medicines are produced as a result of the selection pressure.
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Physical Appearance
Sterile filtered colorless 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.Please avoid freeze thaw cycles.
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Storage Buffer
20mM HEPES, pH7.0 and 10% Glycerol.
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Kinetic parameters
Km=740µM, Kcat = 30s-1, Kcat/Km=4.1mM-1s-1 with peptide substrate ATLNFPISPW.
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 24Description:
Hepatitis C Virus Core 24 Recombinant
Product # :
HCV-240Price :
Quantity :
Shipping Method :
Shipped with Ice Packs
More Info
- description
- formulation
- purity
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Description
The HCV Core 24 genotype-1b, E.coli derived recombinant protein, contains the HCV core nucleocapsid immunodominant regions. The protein is fused with b-galactosidase (114 kDa) at N-terminus.
Formulation
20mM Tris-Hcl pH 8, 1.5M urea and 10mM b-mercaptoethanol.
Purity
HCV Core 24 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-Core 24 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-core 24 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 24 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.