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Mur ligase family, catalytic domain This family contains a number of related ligase enzymes which have EC numbers 6.3.2.*. This family includes: MurC, MurD, MurE, MurF, Mpl, and FolC. MurC, MurD, Mure and MurF catalyze consecutive steps in the synthesis of peptidoglycan. Peptidoglycan consists of a sheet of two sugar derivatives, with one of these N-acetylmuramic acid attaching to a small pentapeptide. The pentapeptide is is made of L-alanine, D-glutamic acid, Meso-diaminopimelic acid and D-alanyl alanine. The peptide moiety is synthesized by successively adding these amino acids to UDP-N-acetylmuramic acid. MurC transfers the L-alanine, MurD transfers the D-glutamate, MurE transfers the diaminopimelic acid, and MurF transfers the D-alanyl alanine. This family also includes Folylpolyglutamate synthase that transfers glutamate to folylpolyglutamate.
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Lu S et al.(2020). "CDD/SPARCLE: the conserved domain database in 2020.",