Human GPVI Antibody Summary
Gln21-Lys267
Accession # Q9HCN6
Applications
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
Reconstitution Calculator
Preparation and Storage
- 12 months from date of receipt, -20 to -70 °C as supplied.
- 1 month, 2 to 8 °C under sterile conditions after reconstitution.
- 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Background: GPVI
Glycoprotein VI (GPVI) is a 63 kDa platelet/megakaryocyte-specific type I transmembrane glycoprotein of the immunoglobulin superfamily that is an important collagen receptor and initiator of platelet activation, aggregation and thrombin generation (1, 2). GPVI is also a secondary receptor required for platelet spreading on laminin (3). Human GPVI contains a 20 amino acid (aa) signal sequence, a 247 aa extracellular domain (ECD) that has two C-type Ig-like domains followed by a mucin-like, presumably O-glycosylated Ser-Thr-rich region, a 21 aa transmembrane (TM) domain and a 51 aa cytoplasmic tail that contains calmodulin-binding and SH3 domains. Human GPVI ECD shows 69%, 65% and 70% aa identity with mouse, bovine and canine GPVI ECD, respectively. Two splice variants exist; one is 17 aa shorter in the ECD, while the other diverges at aa 260, creating an inactive monomeric and presumably secreted 681 aa protein (3). GPVI associates with the Fc receptor gamma -chain via charged aa in the TM domains of GPVI (arginine) and the FcR gamma (aspartic acid) (2). Collagen binding by the GPVI Ig-like domains initiates signaling through the FcR gamma ITAM sequence (2). Dimerization of GPVI (2:2 with FcR gamma ) and N-glycosylation greatly enhances collagen binding (5, 6). Type I and III collagens are strong thrombus-forming components in the vascular subendothelium and atherosclerotic plaques (7). GPVI initiates binding to fibrillar collagens under flow conditions, then activates integrin alpha 2 beta 1 which binds collagen more tightly (8). GPVI deficiencies cause only a mild bleeding tendency, probably because integrin alpha 2 beta 1 is able to minimally initiate collagen binding (8). Normal human GPVI concentration can vary widely and affect maximum thrombin generation (9). Engagement of GPVI by collagens or other agonists, including autoantibodies, causes calmodulin-regulated metalloproteinase cleavage of the 57 kDa ECD and depletes surface GPVI (10).
- Jandrot-Perrus, M. et al. (2000) Blood 96:1798.
- Moroi, M. and S.M. Jung (2004) Thromb. Res. 114:221.
- Inoue, O. et al. (2006) Blood 107:1405.
- Ezumi, Y. et al. (2000) Biochem. Biophys. Res. Comm. 277:27.
- Horii, K. et al. (2006) Blood 108:936.
- Kunicki, T.J. et al. (2005) Blood 106:2744.
- Cosemans, J.M. et al. (2005) Atherosclerosis 181:19.
- Lecut, C. et al. (2005) Thromb. Haemost. 94:107.
- Furihata, K. et al. (2001) Arterioscler. Thromb. Vasc. Biol. 21:1857.
- Stephens, G. et al. (2005) Blood 105:186.
Product Datasheets
Citations for Human GPVI Antibody
R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.
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Citations: Showing 1 - 6
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Human Placental Mesenchymal Stem/Stromal cells (pMSCs) inhibit agonist-induced platelet functions reducing atherosclerosis and thrombosis phenotypes
Authors: A Al Subayyi, YS Basmaeil, R Alenzi, T Khatlani
Journal of Cellular and Molecular Medicine, 2021-09-18;0(0):.
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DNA Content in Ischemic Stroke Thrombi Can Help Identify Cardioembolic Strokes Among Strokes of Undetermined Cause
Authors: Lucas Di Meglio, Jean-Philippe Desilles, Mialitiana Solonomenjanahary, Julien Labreuche, Véronique Ollivier, Sebastien Dupont et al.
Stroke
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Platelet membrane and stem cell exosome hybrids enhance cellular uptake and targeting to heart injury
Authors: Hu S, Wang X, Li Z et al.
Nano Today
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CRISPR-edited megakaryocytes for rapid screening of platelet gene functions
Authors: Montenont E, Bhatlekar S, Jacob S et al.
Blood advances
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Atroxlysin-III, A Metalloproteinase from the Venom of the Peruvian Pit Viper Snake Bothrops atrox (Jerg�n) Induces Glycoprotein VI Shedding and Impairs Platelet Function
Authors: LS Oliveira, MI Estevão-Co, VG Alvarenga, DE Vivas-Ruiz, A Yarleque, AM Lima, A Cavaco, JA Eble, EF Sanchez
Molecules, 2019-09-26;24(19):.
Species: Human
Sample Types: Platelets
Applications: Western Blot -
Candida albicans elicits protective allergic responses via platelet mediated T helper 2 and T helper 17 cell polarization
Authors: Yifan Wu, Zhimin Zeng, Yubiao Guo, Lizhen Song, Jill E. Weatherhead, Xinyan Huang et al.
Immunity
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