6.3.2.45	ATP + UDP-N-alpha-D-acetylmuramate + L-alanyl-gamma-D-glutamyl-meso-2,6-diaminoheptanedioate	the recycling enzyme allows reincorporation into peptidoglycan (murein) of the tripeptide L-alanyl-gamma-D-glutamyl-meso-2,6-diaminoheptanedioate released during the maturation and constant remodeling of this bacterial cell wall polymer that occur during cell growth and division. The enzyme adds this peptide to UDP-N-acetylmuramate, thereby providing an economical additional source of UDP-MurNAc-tripeptide available for de novo peptidoglycan biosynthesis	Escherichia coli	ADP + phosphate + UDP-N-acetylmuramoyl-L-alanyl-D-gamma-glutamyl-meso-2,6-diaminoheptanedioate	-	?	427398