1BW5:
reference: The solution structure of the homeodomain of the rat insulin-gene enhancer protein isl-1. Comparison with other homeodomains., Ippel H, Larsson G, Behravan G, Zdunek J, Lundqvist M, Schleucher J, Lycksell PO, Wijmenga S, J Mol Biol 1999 May 14;288(4):689-703. PMID: 10329173

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