1SDO:
reference: Crystal structure of BstYI at 1.85A resolution: a thermophilic restriction endonuclease with overlapping specificities to BamHI and BglII., Townson SA, Samuelson JC, Vanamee ES, Edwards TA, Escalante CR, Xu SY, Aggarwal AK, J Mol Biol 2004 May 7;338(4):725-33. PMID: 15099740

This OCA Structure page
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