1G97:
reference: Crystal structures of Streptococcus pneumoniae N-acetylglucosamine-1-phosphate uridyltransferase, GlmU, in apo form at 2.33 A resolution and in complex with UDP-N-acetylglucosamine and Mg(2+) at 1.96 A resolution., Kostrewa D, D'Arcy A, Takacs B, Kamber M, J Mol Biol 2001 Jan 12;305(2):279-89. PMID: 11124906

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