| 4CMS: reference: X-ray analyses of aspartic proteinases. IV. Structure and refinement at 2.2 A resolution of bovine chymosin., Newman M, Safro M, Frazao C, Khan G, Zdanov A, Tickle IJ, Blundell TL, Andreeva N, J Mol Biol 1991 Oct 20;221(4):1295-309. PMID: 1942052 |
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