1Q7Q:
reference: Structures of the N-terminal modules imply large domain motions during catalysis by methionine synthase., Evans JC, Huddler DP, Hilgers MT, Romanchuk G, Matthews RG, Ludwig ML, Proc Natl Acad Sci U S A 2004 Mar 16;101(11):3729-36. Epub 2004 Jan 29. PMID: 14752199

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