1OK4:
reference: Crystal structure of an archaeal class I aldolase and the evolution of (betaalpha)8 barrel proteins., Lorentzen E, Pohl E, Zwart P, Stark A, Russell RB, Knura T, Hensel R, Siebers B, J Biol Chem 2003 Nov 21;278(47):47253-60. Epub 2003 Aug 26. PMID: 12941964

This OCA Structure page
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