1CEI:
reference: The crystal structure of the immunity protein of colicin E7 suggests a possible colicin-interacting surface., Chak KF, Safo MK, Ku WY, Hsieh SY, Yuan HS, Proc Natl Acad Sci U S A 1996 Jun 25;93(13):6437-42. PMID: 8692833

This OCA Structure page
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