| 2ARV: reference: Structural basis for the inhibition of activin signalling by follistatin., Harrington AE, Morris-Triggs SA, Ruotolo BT, Robinson CV, Ohnuma S, Hyvonen M, EMBO J. 2006 Mar 8;25(5):1035-45. Epub 2006 Feb 16. PMID: 16482217 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).