Record Information
Version 1.0
Update Date 1/22/2018 12:54:54 PM
Metabolite IDPAMDB001023
Identification
Name: N-Acetyl-D-muramoate
Description:N-acetyl-D-muramoate is a member of the chemical class known as Sugar Acids and Derivatives. These are compounds containing a saccharide unit which bears a carboxylic acid group. UDP-N-acetylmuramic acid (UDP-MurNAc) is a precursor for peptidoglycan biosynthesis in bacteria. (PMID 14659546) Peptidoglycan is the major constituent of the cell wall, which is comprised of backbone repeats of N-acetylglucosamine (NAG) and N-acetylmuramic acid (NAM). (PMID 18700763) UDP-N-acetylmuramic acid (UDP-MurNAc) is a potent inhibitor of MurA (enolpyruvyl-UDP-GlcNAc synthase). (PMID 15751977) The bacterial cell wall is a polymer consisting of alternating N-acetylglucosamine (GlcNAc) and N-acetylmuramic acid (MurNAc) units, cross-linked via peptides appended to MurNAc. (PMID 12369847). The peptidoglycan synthesis pathway starts at the cytoplasm, where in six steps the peptidoglycan precursor a UDP-N-acetylmuramoyl-pentapeptide is synthesized. This precursor is then attached to the memberane acceptor all-trans-undecaprenyl phosphate, generating a N-acetylmuramoyl-pentapeptide-diphosphoundecaprenol, also known as lipid I. Another transferase then adds UDP-N-acetyl-alpha-D-glucosamine, yielding the complete monomeric unit a lipid , also known as lipid . This final lipid intermediate is transferred through the membrane. The peptidoglycan monomers are then polymerized on the outside surface by glycosyltransferases, which form the linear glycan chains, and transpeptidases, which catalyze the formation of peptide crosslinks.
Structure
Thumb
Synonyms:
  • N-Acetyl-D-muramoic acid
  • N-Acetylmuramate
  • N-Acetylmuramic acid
Chemical Formula: C11H19NO8
Average Molecular Weight: 293.2705
Monoisotopic Molecular Weight: 293.111066589
InChI Key: MNLRQHMNZILYPY-MKFCKLDKSA-N
InChI:InChI=1S/C11H19NO8/c1-4(10(16)17)19-9-7(12-5(2)14)11(18)20-6(3-13)8(9)15/h4,6-9,11,13,15,18H,3H2,1-2H3,(H,12,14)(H,16,17)/t4-,6-,7-,8-,9-,11?/m1/s1
CAS number: 61633-75-8
IUPAC Name:(2R)-2-{[(3R,4R,5S,6R)-2,5-dihydroxy-3-[(1-hydroxyethylidene)amino]-6-(hydroxymethyl)oxan-4-yl]oxy}propanoic acid
Traditional IUPAC Name: (2R)-2-{[(3R,4R,5S,6R)-2,5-dihydroxy-3-[(1-hydroxyethylidene)amino]-6-(hydroxymethyl)oxan-4-yl]oxy}propanoic acid
SMILES:[H][C@](C)(O[C@@]1([H])[C@]([H])(O)[C@@]([H])(CO)OC([H])(O)[C@]1([H])N=C(C)O)C(O)=O
Chemical Taxonomy
Taxonomy DescriptionThis compound belongs to the class of organic compounds known as n-acyl-alpha-hexosamines. These are carbohydrate derivatives containing a hexose moiety in which the oxygen atom is replaced by an n-acyl group.
Kingdom Organic compounds
Super ClassOrganooxygen compounds
Class Carbohydrates and carbohydrate conjugates
Sub ClassAminosaccharides
Direct Parent N-acyl-alpha-hexosamines
Alternative Parents
Substituents
  • Muramic_acid
  • N-acyl-alpha-hexosamine
  • Glucosamine
  • Amino sugar
  • Sugar acid
  • Oxane
  • Monosaccharide
  • Secondary alcohol
  • Hemiacetal
  • Oxacycle
  • Organoheterocyclic compound
  • Organic 1,3-dipolar compound
  • Propargyl-type 1,3-dipolar organic compound
  • Monocarboxylic acid or derivatives
  • Ether
  • Dialkyl ether
  • Carboxylic acid
  • Carboxylic acid derivative
  • Carboximidic acid derivative
  • Carboximidic acid
  • Hydrocarbon derivative
  • Primary alcohol
  • Organonitrogen compound
  • Carbonyl group
  • Alcohol
  • Aliphatic heteromonocyclic compound
Molecular Framework Aliphatic heteromonocyclic compounds
External Descriptors
Physical Properties
State: Not Available
Charge:-1
Melting point: Not Available
Experimental Properties:
PropertyValueSource
Predicted Properties
PropertyValueSource
Water Solubility53.6 mg/mLALOGPS
logP-1.8ALOGPS
logP-1.7ChemAxon
logS-0.74ALOGPS
pKa (Strongest Acidic)3.56ChemAxon
pKa (Strongest Basic)1.39ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count9ChemAxon
Hydrogen Donor Count5ChemAxon
Polar Surface Area149.04 Å2ChemAxon
Rotatable Bond Count5ChemAxon
Refractivity62.88 m3·mol-1ChemAxon
Polarizability27.39 Å3ChemAxon
Number of Rings1ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Biological Properties
Cellular Locations: Cytoplasm
Reactions:
Pathways:
  • Amino sugar and nucleotide sugar metabolism pae00520
  • Phosphotransferase system (PTS) pae02060
Spectra
Spectra:
Spectrum TypeDescriptionSplash Key
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0fbc-0090000000-77705b9680f576293a4fView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0zor-2190000000-a2225fd0cee643a4a97cView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0fi3-9570000000-18bd313b1db1b7d803eeView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0udv-4190000000-937234965abe7cb8d291View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0zmr-7390000000-092457bbe47b41978e3cView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0pb9-9400000000-f12dba9036850e101fedView in MoNA
References
References:
  • Kanehisa, M., Goto, S., Sato, Y., Furumichi, M., Tanabe, M. (2012). "KEGG for integration and interpretation of large-scale molecular data sets." Nucleic Acids Res 40:D109-D114. Pubmed: 22080510
  • Mizyed, S., Oddone, A., Byczynski, B., Hughes, D. W., Berti, P. J. (2005). "UDP-N-acetylmuramic acid (UDP-MurNAc) is a potent inhibitor of MurA (enolpyruvyl-UDP-GlcNAc synthase)." Biochemistry 44:4011-4017. Pubmed: 15751977
  • Raymond, J. B., Price, N. P., Pavelka, M. S. Jr (2003). "A method for the enzymatic synthesis and HPLC purification of the peptidoglycan precursor UDP-N-acetylmuramic acid." FEMS Microbiol Lett 229:83-89. Pubmed: 14659546
  • Schwartz, B., Markwalder, J. A., Seitz, S. P., Wang, Y., Stein, R. L. (2002). "A kinetic characterization of the glycosyltransferase activity of Eschericia coli PBP1b and development of a continuous fluorescence assay." Biochemistry 41:12552-12561. Pubmed: 12369847
  • Suvorov, M., Lee, M., Hesek, D., Boggess, B., Mobashery, S. (2008). "Lytic transglycosylase MltB of Escherichia coli and its role in recycling of peptidoglycan strands of bacterial cell wall." J Am Chem Soc 130:11878-11879. Pubmed: 18700763
  • van der Werf, M. J., Overkamp, K. M., Muilwijk, B., Coulier, L., Hankemeier, T. (2007). "Microbial metabolomics: toward a platform with full metabolome coverage." Anal Biochem 370:17-25. Pubmed: 17765195
Synthesis Reference: Not Available
Material Safety Data Sheet (MSDS) Not Available
External Links:
ResourceLink
CHEBI ID21615
HMDB IDHMDB60493
Pubchem Compound ID5462244
Kegg IDC02713
ChemSpider ID4575341
Wikipedia IDNot Available
BioCyc IDNot Available

Enzymes

General function:
Involved in N-acetylmuramoyl-L-alanine amidase activity
Specific function:
Cell-wall hydrolase probably involved in cell-wall hydrolysis, septation or recycling
Gene Name:
amiB
Locus Tag:
PA4947
Molecular weight:
50.7 kDa
Reactions
Hydrolyzes the link between N-acetylmuramoyl residues and L-amino acid residues in certain cell-wall glycopeptides.
General function:
Involved in N-acetylmuramoyl-L-alanine amidase activity
Specific function:
Hydrolyzes the link between N-acetylmuramoyl residues and L-amino acid residues in certain cell-wall glycopeptides
Gene Name:
amiA
Locus Tag:
PA5538
Molecular weight:
42.9 kDa
Reactions
Hydrolyzes the link between N-acetylmuramoyl residues and L-amino acid residues in certain cell-wall glycopeptides.
General function:
Involved in N-acetylmuramoyl-L-alanine amidase activity
Specific function:
Cell-wall hydrolase probably involved in cell-wall hydrolysis, septation or recycling
Gene Name:
amiC
Locus Tag:
PA3364
Molecular weight:
42.8 kDa
Reactions
Hydrolyzes the link between N-acetylmuramoyl residues and L-amino acid residues in certain cell-wall glycopeptides.

Transporters