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An Insight into Milk Fat Globule-EGF Factor 8 Protein (Mouse Recombinant): Characteristics, Applications, and Future Directions

Abstract

The Milk Fat Globule-EGF Factor 8 (MFG-E8) protein, particularly in its mouse recombinant form, has emerged as a pivotal player in multiple physiological processes. This paper aims to elucidate its unique characteristics, delve into current methodologies employed in its study, and chart the trajectory for future research directions.

Introduction

Milk Fat Globule-EGF Factor 8 (MFG-E8) is a glycoprotein known for its vital role in several cellular processes, including cell signaling, apoptosis, and phagocytosis. The recombinant form of MFG-E8 derived from mouse models offers a valuable tool for researchers in deciphering its biological relevance.

Characteristics of MFG-E8 (Mouse Recombinant)

1. Structural Profile: The MFG-E8 protein harbors EGF-like domains, which enable its participation in numerous cellular signaling events.

2. Expression Spectrum: While originally identified in mammary epithelial cells, its expression spectrum extends to macrophages, dendritic cells, and other tissues.

3. Biochemical Activity: It plays a key role in facilitating the phagocytic clearance of apoptotic cells by bridging these cells to phagocytes.

Methodologies Employed in MFG-E8 Research

1. Production of Recombinant MFG-E8: Using bacterial expression systems, such as E. coli, mouse MFG-E8 DNA is introduced, followed by protein purification techniques like gel filtration chromatography.

2. Assays: The phagocytosis assays employing fluorescently tagged apoptotic cells and phagocytes enable researchers to quantify MFG-E8's effectiveness in apoptotic cell clearance.

3. Immunoblotting: Through SDS-PAGE and Western blotting, the expression and purification of MFG-E8 can be monitored and validated.

4. Knockout Models: MFG-E8 knockout mice models help decipher its in vivo significance, especially concerning its immune-regulatory roles.

Original Ideas & Implications

The potential for MFG-E8, particularly in its mouse recombinant form, to serve as a therapeutic agent in autoimmune disorders remains a tantalizing prospect. Considering its role in apoptotic cell clearance, dysregulation in MFG-E8 might be implicated in the etiology of autoimmune disorders. Thus, targeting this protein therapeutically may pave the way for innovative treatments.

Conclusions & Future Directions

While the recombinant MFG-E8 protein has elucidated much about the biological implications of this protein, the horizon is rife with potential. Future research might focus on its therapeutic potential, particularly in autoimmunity and inflammation.

What is the molecular weight/Mw of IGFBP6 MOUSE Protein?
IGFBP6 MOUSE Protein has a total Mw of 23.7kDa.

What is the source or expression system of IGFBP6 MOUSE Protein?
Sf9, Baculovirus cells.

What is the Purity of IGFBP6 MOUSE Protein?
IGFBP6 MOUSE Protein is >90% pure as determined by SDS-PAGE.

What is the Biological Activity of IGFBP6 MOUSE Protein?
The biological functionality of IGFBP6 MOUSE Protein will be determined in the future.

What is the amino acid sequence of IGFBP6 MOUSE Protein?
ALAGCPGCGA GMQTGCRGGC VEEEDAGSPA DGCTEAGGCL RREGQPCGVY SPKCAPGLQC QPRENEEAPL RALLIGQGRC QRARGPSEET TKESKPQGGA SRSRDTNHRD RQKNPRTSAA PIRPNPVQDS EMGPCRRHLD SVLQQLQTEV FRGGARGLYV PNCDLRGFYR KQQCRSSQGN RRGPCWCVDP MGQPLPVSPD GQGSTQCSAR SSGLEHHHHH H.

What applications can IGFBP6 MOUSE Protein be used in?
IGFBP6 MOUSE Protein can probably be used in western blot, ELISA and Lateral Flow.

What is the endotoxin level for IGFBP6 MOUSE Protein?
The endotoxin level is minimal, IGFBP6 MOUSE Protein was purified using conventional chromatography techniques.

What is the molecular weight/Mw of HEPATOCYTE GROWTH FACTOR HUMAN,HEK Protein?
HEPATOCYTE GROWTH FACTOR HUMAN,HEK Protein has a total Mw of 80kDa.

What is the source or expression system of HEPATOCYTE GROWTH FACTOR HUMAN,HEK Protein?
HEK.
What is the Purity of HEPATOCYTE GROWTH FACTOR HUMAN,HEK Protein?
HEPATOCYTE GROWTH FACTOR HUMAN,HEK Protein is >90% pure as determined by SDS-PAGE.

What is the Biological Activity of HEPATOCYTE GROWTH FACTOR HUMAN,HEK Protein?
The activity was measured in a cell proliferation assay using 4MBr-5 rhesus monkey epithelial cells (ATCC CCL-208). The EC50 for this effect is typically 20-40ng/ml.
What is the amino acid sequence of HEPATOCYTE GROWTH FACTOR HUMAN,HEK Protein?
32-QRKRRNTIHE FKKSAKTTLI KIDPALKIKT KKVNTADQCA NRCTRNKGLP FTCKAFVFDK ARKQCLWFPF NSMSSGVKKE FGHEFDLYEN KDYIRNCIIG KGRSYKGTVS ITKSGIKCQP WSSMIPHEHS FLPSSYRGKD LQENYCRNPR GEEGGPWCFT SNPEVRYEVC DIPQCSEVEC MTCNGESYRG LMDHTESGKI CQRWDHQTPH RHKFLPERYP DKGFDDNYCR NPDGQPRPWC YTLDPHTRWE YCAIKTCADN TMNDTDVPLE TTECIQGQGE GYRGTVNTIW NGIPCQRWDS QYPHEHDMTP ENFKCKDLRE NYCRNPDGSE SPWCFTTDPN IRVGYCSQIP NCDMSHGQDC YRGNGKNYMG NLSQTRSGLT CSMWDKNMED LHRHIFWEPD ASKLNENYCR NPDDDAHGPW CYTGNPLIPW DYCPISRCEG DTTPTIVNLD HPVISCAKTK QLRVVNGIPT RTNIGWMVSL RYRNKHICGG SLIKESWVLT ARQCFPSRDL KDYEAWLGIH DVHGRGDEKC KQVLNVSQLV YGPEGSDLVL MKLARPAVLD DFVSTIDLPN YGCTIPEKTS CSVYGWGYTG LINYDGLLRV AHLYIMGNEK CSQHHRGKVT LNESEICAGA EKIGSGPCEG DYGGPLVCEQ HKMRMVLGVI VPGRGCAIPN RPGIFVRVAY YAKWIHKIIL TYKVPQS-728

What applications can HEPATOCYTE GROWTH FACTOR HUMAN,HEK Protein be used in?
HEPATOCYTE GROWTH FACTOR HUMAN,HEK Protein can probably be used in western blot, ELISA and Lateral Flow.

What is the endotoxin level for HEPATOCYTE GROWTH FACTOR HUMAN,HEK Protein?
The endotoxin level is minimal, HEPATOCYTE GROWTH FACTOR HUMAN,HEK Protein was purified using conventional chromatography techniques.

Insulin-like growth factor-binding protein 2 (IGFBP2) is a key regulator of insulin-like growth factor (IGF) signaling pathway, playing crucial roles in cell proliferation, differentiation, and survival. IGFBP2, a member of the IGFBP family, modulates the bioavailability and activity of IGFs by binding to them and regulating their interaction with cell surface receptors. In recent years, IGFBP2 has emerged as a promising target for research due to its involvement in various physiological processes and its implications in several diseases, including cancer, metabolic disorders, and neurodegenerative conditions.

What is the molecular weight/Mw of IGFBP2 MOUSE Protein?
IGFBP2 MOUSE Protein has a total Mw of 30.3kDa.

What is the source or expression system of IGFBP2 MOUSE Protein?
HEK293 cells.

What is the Purity of IGFBP2 MOUSE Protein?
IGFBP2 MOUSE Protein is >85% pure as determined by SDS-PAGE.

What is the Biological Activity of IGFBP2 MOUSE Protein?
The ED50 range is ≤ 0.7 ug/ml which measured by its ability to inhibit proliferation using MCF-7 human breast cancer cells in the presence of Mouse IGF-2.

What is the amino acid sequence of IGFBP2 MOUSE Protein?
EVLFRCPPCT PERLAACGPP PDAPCAELVR EPGCGCCSVC ARQEGEACGV YIPRCAQTLR CYPNPGSELP LKALVTGAGT CEKRRVGTTP QQVADSDDDH SEGGLVENHV DGTMNMLGGG SSAGRKPLKS GMKELAVFRE KVNEQHRQMG KGAKHLSLEE PKKLRPPPAR TPCQQELDQV LERISTMRLP DDRGPLEHLY SLHIPNCDKH GRYNLKQCKM SLNGQRGECW CVNPNTGKPI QGAPTIRGDP ECHLFYNEQQ ETGGAHAQSV QHHHHHH.

What applications can IGFBP2 MOUSE Protein be used in?
IGFBP2 MOUSE Protein can probably be used in western blot, ELISA and Lateral Flow.

What is the endotoxin level for IGFBP2 MOUSE Protein?
The endotoxin level is minimal, IGFBP2 MOUSE Protein was purified using conventional chromatography techniques.

Before it was discovered in 2000, there was a hypothesis that a similar type of protein existed that performed many of the functions we see in FGF23. This was originally referred to as phosphatonin. Various effects were described and noted by researchers including inhibition of production and inhibition of secretion of parathyroid hormone. Derived from the bone Fibroblast Growth Factor 23 is a phosphaturic hormone. It increases phosphate excretion when acting on the kidney and also suppresses the biosynthesis of 1,25(OH)2D3.

Mechanism
Despite various research studies into the topic, many of the mechanisms for the regulations of FGF23 production remain a mystery to the scientific community. While we know that mutations in PHEX, ENPP1 and DMP1 result in the increased expression of FGF23, it is unclear why this occurs. This also means that currently, it is not possible to regulate the production of FGF23 either. We also do not know how signals from FGF23 regulate vitamin D metabolism. However, understanding these types of mechanisms could offer information needed to provide better treatment for deranged bone and mineral metabolism.

Interactions
Molecular interactions involving FGF-23, vitamin D and klotho do provide the solution needed to regulate phosphate levels within the body. Furthermore, an interaction between Vitamin D and FGF3 can have an impact on renal phosphate balance. As well as this, when in the presence of klotho, FGF3 does actually increase bioactivity and begins to change systemic phosphate homeostasis.

Function
Based on research it seems that the main function for FGF23 is the regulation of phosphate concentration in plasma. It seems to be secreted from the osteocytes due to elevated levels . When acting upon the kidneys, the hormone reduces the expression of NPT2. This is a sodium-phosphate cotransporter found in the proximal tube.
As such, it appears as though FGF23 is able to reduce the reabsorption, all the while maxing the excretion of phosphate. It has also been suggested that the hormone is able to suppress 1-alpha-hydroxylase. If this is the case, it can limit its potential to activate vitamin D and thus impair the ability for calcium absorption.

Structure
FGF243 is located on the chromosome 12. It is composed of three exons. The crystal structure of FGF23 is completely different from the common conformation typically adopted by paracrine-acting FGFs. Instead, there is a conformation of the HPR region between beta strands 10 and 12. As well as this, there is a cleft between the other HPR-binding region, the beta1-beta12 loop and this one. This comes before a direct interaction between HPR sulfate and FGF23s backbone atoms. Due to this, endocrine function is benefitted and HPR-binding affinity is reduced for the lipangs.
Certain mutations that cause the protein to be completely resistant to proteolytic cleavage does trigger a surge in activity of the protein and the renal phosphate loss typically found in certain human diseases including hypophosphatemic rickets.
Studies have also revealed that FGF23 is overproduced in certain tumors including phosphaturic mesenchymal tumors. Furthermore a reduced level of activity for this protein is believed to lead to higher phosphate levels and familial tumor calcinosis clinical syndrome.

What is the molecular weight/Mw of FGF23 HUMAN Protein?
FGF23 HUMAN Protein has a total Mw of 22.5kDa.

What is the source or expression system of FGF23 HUMAN Protein?
Escherichia Coli.

What is the Purity of FGF23 HUMAN Protein?
FGF23 HUMAN Protein is >95X% pure as determined by SDS-PAGE.

What is the Biological Activity of FGF23 HUMAN Protein?
The biological activity of FGF-23 was measured in a cell proliferation assay using NIH/3T3 mouse embryonic fibroblasts. The ED50 for this effect is typically 0.05-0.5µg/ml in the presence of 5µg/ml of Recombinant Mouse Klotho and 10 µg/ml of HPR.

What is the amino acid sequence of FGF23 HUMAN Protein?
MYPNASPLLG SSWGGLIHLY TATARNSYHL QIHKNGHVDG APHQTIYSAL MIRSEDAGFV VITGVMSRRY LCMDFRGNIF GSHYFDPENC RFQHQTLENG YDVYHSPQYH FLVSLGRAKR AFLPGMNPPP YSQFLSRRNE IPLIHFNTPI PRRHTRSAED DSERDPLNVL KPRARMTPAP ASCSQELPSA EDNSPMASDP LGVVRGGRVN THAGGTGPEG CRPFAKFI.

What applications can FGF23 HUMAN Protein be used in?
FGF23 HUMAN Protein can probably be used in western blot, ELISA and Lateral Flow.

What is the endotoxin level for FGF23 HUMAN Protein?
The endotoxin level is minimal, FGF23 HUMAN Protein was purified using conventional chromatography techniques.

What is the molecular weight/Mw of FGF 2 Protein?
FGF 2 Protein has a total Mw of 16.5kDa.

What is the source or expression system of FGF 2 Protein?
Escherichia Coli.

What is the Purity of FGF 2 Protein?
FGF 2 Protein is >98% pure as determined by SDS-PAGE.

What is the Biological Activity of FGF 2 Protein?
The ED50, Calculated by the dose- dependent proliferation of mouse BALB/c 3T3 cells is < 0.05ng/ml corresponding to a specific activity of 2.0x107 units/mg.

What is the amino acid sequence of FGF 2 Protein?
MPALPEDGGS GAFPPGHFKD PKRLYCKNGG FFLRIHPDGR VDGVREKSDP HIKLQLQAEE RGVVSIKGVC ANRYLAMKED GRLLASKCVT DECFFFERLE SNNYNTYRSR KYTSWYVALK RTGQYKLGSK TGPGQKAILF LPMSAKS.

What applications can FGF 2 Protein be used in?
FGF 2 Protein can probably be used in western blot, ELISA and Lateral Flow.

What is the endotoxin level for FGF 2 Protein?
The endotoxin level is minimal, FGF 2 Protein was purified using conventional chromatography techniques.

OX40 Ligand (OX40L), a member of the tumor necrosis factor (TNF) superfamily, plays a pivotal role in regulating immune responses and orchestrating the delicate balance between activation and tolerance. The human recombinant form of OX40L has emerged as a potent tool in immunology, offering insights into its molecular intricacies and potential applications in therapeutic interventions. This research embarks on a journey to unravel the multifaceted role of OX40L Human Recombinant, shedding light on its structural attributes, signaling pathways, and its promising avenues in immunotherapy. By delving into the properties of OX40L, scientists aim to expand our understanding of immune modulation and open new frontiers in the treatment of immune-related disorders.

Structural Insights into OX40L Human Recombinant:

OX40L, as a trimeric transmembrane protein, exhibits a unique structural configuration that governs its interactions with the OX40 receptor on T cells. The human recombinant form, engineered for controlled study, provides a window into the three-dimensional intricacies of the ligand. Understanding its structure is pivotal for deciphering how OX40L engages with its receptor and modulates immune responses.

Immunomodulatory Signaling Pathways:

OX40L binding to its cognate receptor OX40 on T cells triggers intricate signaling cascades that impact immune cell activation, proliferation, and cytokine production. The OX40-OX40L axis is a crucial regulator of T cell function, influencing both effector and regulatory T cell responses. Unraveling the specific pathways activated by OX40L Human Recombinant provides valuable insights into the modulation of immune responses in health and disease.

Applications in Immunotherapy:

The immunomodulatory properties of OX40L make it an attractive candidate for therapeutic interventions. OX40L Human Recombinant, in preclinical and clinical studies, is being explored for its potential in enhancing antitumor immune responses. By harnessing the ligand's ability to stimulate effector T cells and memory T cell formation, researchers aim to develop novel immunotherapies for cancer and other immune-related disorders.

OX40L in Autoimmune Diseases:

Conversely, OX40L's role in autoimmune diseases has spurred investigations into its inhibition as a therapeutic strategy. Blocking the OX40-OX40L interaction has shown promise in mitigating autoimmune responses, presenting a potential avenue for the development of treatments for conditions such as rheumatoid arthritis and inflammatory bowel disease.

While the potential of OX40L Human Recombinant in immunotherapy is promising, challenges persist. Fine-tuning its applications, understanding potential side effects, and optimizing dosages are critical considerations for translational success. Additionally, comprehending the context-dependent nature of OX40L signaling is essential for tailoring therapeutic strategies to specific diseases and patient profiles.

OX40L Human Recombinant stands at the forefront of immunomodulation research, offering a lens through which we can unravel the complexities of immune responses. Its structural insights, signaling pathways, and therapeutic applications position it as a key player in the evolving landscape of immunotherapy. As researchers continue to dissect the molecular nuances of OX40L, they not only expand our understanding of immune regulation but also pave the way for transformative advancements in the treatment of cancer and autoimmune diseases, shaping the future of precision medicine and immunotherapy.