1S6B:
reference: Crystal structure of a calcium-induced dimer of two isoforms of cobra phospholipase A2 at 1.6 A resolution., Jabeen T, Sharma S, Singh N, Singh RK, Kaur P, Perbandt M, Betzel Ch, Srinivasan A, Singh TP, Proteins 2005 Jun 1;59(4):856-63. PMID: 15828003

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