2ZCF:
reference: Mutational study on alphaGln90 of Fe-type nitrile hydratase from Rhodococcus sp. N771., Takarada H, Kawano Y, Hashimoto K, Nakayama H, Ueda S, Yohda M, Kamiya N, Dohmae N, Maeda M, Odaka M, Biosci Biotechnol Biochem. 2006 Apr;70(4):881-9. PMID: 16636455

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