Structure and function of the platelet integrin αIIbβ3

被引:292
作者
Bennett, JS [1 ]
机构
[1] Univ Penn, Sch Med, Dept Med, Div Hematol Oncol, Philadelphia, PA 19104 USA
关键词
D O I
10.1172/JCI26989
中图分类号
R-3 [医学研究方法]; R3 [基础医学];
学科分类号
1001 [基础医学];
摘要
The platelet integrin alpha(IIb)beta(3) is required for platelet aggregation. Like other integrins, alpha(IIb)beta(3) resides on cell surfaces in an equilibrium between inactive and active conformations. Recent experiments suggest that the shift between these conformations involves a global reorganization of the alpha(IIb)beta(3) molecule and disruption of constraints imposed by the heteromeric association of the alpha(IIb) and beta(3) transmembrane and cytoplasmic domains. The biochemical, biophysical, and ultrastructural results that support this conclusion are discussed in this Review.
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页码:3363 / 3369
页数:7
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