2HD7:
reference: Structural basis and evolutionary origin of actin filament capping by twinfilin., Paavilainen VO, Hellman M, Helfer E, Bovellan M, Annila A, Carlier MF, Permi P, Lappalainen P, Proc Natl Acad Sci U S A. 2007 Feb 27;104(9):3113-8. Epub 2007 Feb 20. PMID: 17360616

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