1H3M:
reference: Structure of a tetragonal crystal form of Escherichia coli 2-C-methyl-D-erythritol 4-phosphate cytidylyltransferase., Kemp LE, Bond CS, Hunter WN, Acta Crystallogr D Biol Crystallogr 2003 Mar;59(Pt 3):607-10. PMID: 12595740

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