Integrin α_IIbβ₃ intermediates: From molecular dynamics to adhesion assembly.

ABSTRACT: The platelet integrin α_IIbβ₃ undergoes long-range conformational transitions associated with its functional conversion from inactive (low-affinity) to active (high-affinity) during hemostasis. Although new conformations that are intermediate between the well-characterized bent and extended states have been identified, their molecular dynamic properties and functions in the assembly of adhesions remain largely unexplored. In this study, we evaluated the properties of intermediate conformations of integrin α_IIbβ₃ and characterized their effects on the assembly of adhesions by combining all-atom simulations, principal component analysis, and mesoscale modeling. Our results show that in the low-affinity, bent conformation, the integrin ectodomain ten

SUBMITTER: Tong D 

PROVIDER: S-EPMC9941721 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature