| 4IGD: reference: Quantitative characterization of the activation steps of mannan-binding lectin (MBL)-associated serine proteases (MASPs) points to the central role of MASP-1 in the initiation of the complement lectin pathway., Megyeri M, Harmat V, Major B, Vegh A, Balczer J, Heja D, Szilagyi K, Datz D, Pal G, Zavodszky P, Gal P, Dobo J, J Biol Chem. 2013 Mar 29;288(13):8922-34. doi: 10.1074/jbc.M112.446500. Epub 2013, Feb 5. PMID: 23386610 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).