Anhydro-N-acetylmuramic acid kinase

Anhydro-N-acetylmuramic acid kinase (EC 2.7.1.170, anhMurNAc kinase, AnmK) is an enzyme with systematic name ATP:1,6-anhydro-N-acetyl-beta-muramate 6-phosphotransferase.^[1]^[2]^[3] This enzyme catalyses the following chemical reaction

ATP + 1,6-anhydro-N-acetyl-beta-muramate + H₂O

\rightleftharpoons

ADP + N-acetylmuramate 6-phosphate

This enzyme is required for the utilization of anhydro-N-acetylmuramic acid in proteobacteria.

References

↑ Uehara, T.; Suefuji, K.; Valbuena, N.; Meehan, B.; Donegan, M.; Park, J.T. (2005). "Recycling of the anhydro-N-acetylmuramic acid derived from cell wall murein involves a two-step conversion to N-acetylglucosamine-phosphate". J. Bacteriol. 187: 3643–3649. doi:10.1128/jb.187.11.3643-3649.2005. PMID 15901686.
↑ Uehara, T.; Suefuji, K.; Jaeger, T.; Mayer, C.; Park, J.T. (2006). "MurQ etherase is required by Escherichia coli in order to metabolize anhydro-N-acetylmuramic acid obtained either from the environment or from its own cell wall". J. Bacteriol. 188: 1660–1662. doi:10.1128/jb.188.4.1660-1662.2006. PMID 16452451.
↑ Bacik, J.P.; Whitworth, G.E.; Stubbs, K.A.; Yadav, A.K.; Martin, D.R.; Bailey-Elkin, B.A.; Vocadlo, D.J.; Mark, B.L. (2011). "Molecular basis of 1,6-anhydro bond cleavage and phosphoryl transfer by Pseudomonas aeruginosa 1,6-anhydro-N-acetylmuramic acid kinase". J. Biol. Chem. 286: 12283–12291. doi:10.1074/jbc.m110.198317. PMID 21288904.

Transferases: phosphorus-containing groups (EC 2.7)

2.7.1: OH acceptor	Hexo- Gluco- Fructo- Hepatic Galacto- Phosphofructo- 1 Liver Muscle Platelet 2 Riboflavin Shikimate Thymidine ADP-thymidine NAD⁺ Glycerol Pantothenate Mevalonate Pyruvate Deoxycytidine PFP Diacylglycerol Phosphoinositide 3 Class I PI 3 Class II PI 3 Sphingosine Glucose-1,6-bisphosphate synthase

2.7.2: COOH acceptor	Phosphoglycerate Aspartate kinase

2.7.3: N acceptor	Creatine

2.7.4: PO₄ acceptor	Phosphomevalonate Adenylate Nucleoside-diphosphate Uridylate Guanylate Thiamine-diphosphate

DNA polymerase	DNA-directed DNA polymerase I II III IV V RNA-directed DNA polymerase Reverse transcriptase Telomerase DNA nucleotidylexotransferase/Terminal deoxynucleotidyl transferase

RNA nucleotidyltransferase	RNA polymerase/DNA-directed RNA polymerase RNA polymerase I RNA polymerase II RNA polymerase III RNA polymerase IV Primase RNA-dependent RNA polymerase PNPase

Other

2.7.8: miscellaneous

Phosphatidyltransferases	CDP-diacylglycerol—glycerol-3-phosphate 3-phosphatidyltransferase CDP-diacylglycerol—serine O-phosphatidyltransferase CDP-diacylglycerol—inositol 3-phosphatidyltransferase CDP-diacylglycerol—choline O-phosphatidyltransferase

Glycosyl-1-phosphotransferase	N-acetylglucosamine-1-phosphate transferase

2.7.10-2.7.13: protein kinase
(PO₄; protein acceptor)

2.7.10: protein-tyrosine	see tyrosine kinases

2.7.11: protein-serine/threonine	see serine/threonine-specific protein kinases

2.7.12: protein-dual-specificity	see serine/threonine-specific protein kinases

2.7.13: protein-histidine	Protein-histidine pros-kinase Protein-histidine tele-kinase Histidine kinase

Enzymes

Activity	Active site Binding site Catalytic triad Oxyanion hole Enzyme promiscuity Catalytically perfect enzyme Coenzyme Cofactor Enzyme catalysis Enzyme kinetics Lineweaver–Burk plot Michaelis–Menten kinetics

Regulation	Allosteric regulation Cooperativity Enzyme inhibitor

Classification	EC number Enzyme superfamily Enzyme family List of enzymes

Types	EC1 Oxidoreductases (list) EC2 Transferases (list) EC3 Hydrolases (list) EC4 Lyases (list) EC5 Isomerases (list) EC6 Ligases (list)

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