1RF1:
reference: Calcium-binding site beta2, adjacent to the "b" polymerization site, modulates lateral aggregation of protofibrils during fibrin polymerization., Kostelansky MS, Lounes KC, Ping LF, Dickerson SK, Gorkun OV, Lord ST, Biochemistry 2004 Mar 9;43(9):2475-83. PMID: 14992585

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).