4CXN:
reference: Insight into the Structural and Biological Relevance of the T/R Transition of the N-Terminus of the B-Chain in Human Insulin., Kosinova L, Veverka V, Novotna P, Collinsova M, Urbanova M, Moody NR, Turkenburg JP, Jiracek J, Brzozowski AM, Zakova L, Biochemistry. 2014 May 22. PMID: 24819248

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