Glycoprotein VI (GPVI) was identified as a collagen receptor from studies of patients with a GPVI deficiency. GPVI-deficient platelets lack collagen-induced aggregation and the ability to form thrombi on a collagen surface under flow conditions. GPVI complexes with the Fc epsilon R1 receptor gamma chain, with a possible stochiometry of two GPVI molecules and one FceRI gamma-chain dimer (Jung & Moroi 2008). GPVI binding to FcR gamma is necessary for high affinity GPVI binding to collagen.
Farndale, R, Watson, SP, Gibbins, JM, Okuma, M, Barnes, M
Auger, JM, Watson, SP, Pearce, AC, McCarty, OJ
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