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. 2022 May 25;119(22):e2117675119. doi: 10.1073/pnas.2117675119

Fig. 5.

Fig. 5.

Proposed mechanism for mechano-chemical platelet activation on fibrin. (1) Mechanical force promotes molecular structural changes in fibrin. (2) Platelet integrin αIIbβ3 binds to unstrained fibrin RGD domains in the helical coiled-coil region of fibrin more effectively than to sheets in the same region, which leads to (3) increased platelet attachment, spreading, and activation.