Record Information
Version2.0
Creation Date2012-05-31 14:31:35 -0600
Update Date2015-06-03 17:19:28 -0600
Secondary Accession Numbers
  • ECMDB20177
Identification
Name:N-Acetylmuramic acid 6-phosphate
DescriptionN-acetylmuramic acid 6-phosphate 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. The enzyme MurQ is an N-acetylmuramic acid 6-phosphate (MurNAc 6-phosphate) hydrolase (or etherase) that hydrolyzes the lactyl side chain from MurNAc 6-phosphate and generates GlcNAc 6-phosphate. (PMID 18837509). It is a key component of peptidoglycan synthesis. 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:
  • MurNAc 6-phosphate
  • MurNAc 6-phosphoric acid
  • MurNAc-6-P
  • N-Acetylmuramate 6-phosphate
  • N-Acetylmuramic acid 6-phosphoric acid
Chemical Formula:C11H20NO11P
Weight:Average: 373.2504
Monoisotopic: 373.077396999
InChI Key:NMEMTQKUEVNSPV-MKFCKLDKSA-N
InChI:InChI=1S/C11H20NO11P/c1-4(10(15)16)22-9-7(12-5(2)13)11(17)23-6(8(9)14)3-21-24(18,19)20/h4,6-9,11,14,17H,3H2,1-2H3,(H,12,13)(H,15,16)(H2,18,19,20)/t4-,6-,7-,8-,9-,11?/m1/s1
CAS number:Not Available
IUPAC Name:(2R)-2-{[(3R,4R,5S,6R)-2,5-dihydroxy-3-[(1-hydroxyethylidene)amino]-6-[(phosphonooxy)methyl]oxan-4-yl]oxy}propanoic acid
Traditional IUPAC Name:MurNAc 6-phosphate
SMILES:[H][C@](C)(O[C@@]1([H])[C@]([H])(O)[C@@]([H])(COP(O)(O)=O)OC([H])(O)[C@]1([H])N=C(C)O)C(O)=O
Chemical Taxonomy
Description belongs to the class of organic compounds known as acylaminosugars. These are organic compounds containing a sugar linked to a chain through N-acyl group.
KingdomOrganic compounds
Super ClassOrganic oxygen compounds
ClassOrganooxygen compounds
Sub ClassCarbohydrates and carbohydrate conjugates
Direct ParentAcylaminosugars
Alternative Parents
Substituents
  • Acylaminosugar
  • Muramic_acid
  • Hexose phosphate
  • N-acyl-alpha-hexosamine
  • Hexose monosaccharide
  • Monosaccharide phosphate
  • Sugar acid
  • Monoalkyl phosphate
  • Monosaccharide
  • Organic phosphoric acid derivative
  • Oxane
  • Phosphoric acid ester
  • Alkyl phosphate
  • Acetamide
  • Carboxamide group
  • Secondary carboxylic acid amide
  • Secondary alcohol
  • Hemiacetal
  • Organoheterocyclic compound
  • Carboxylic acid derivative
  • Carboxylic acid
  • Dialkyl ether
  • Ether
  • Oxacycle
  • Monocarboxylic acid or derivatives
  • Organonitrogen compound
  • Alcohol
  • Carbonyl group
  • Organopnictogen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organic nitrogen compound
  • Aliphatic heteromonocyclic compound
Molecular FrameworkAliphatic heteromonocyclic compounds
External Descriptors
Physical Properties
State:Not Available
Charge:-3
Melting point:Not Available
Experimental Properties:
PropertyValueSource
Predicted Properties
PropertyValueSource
Water Solubility22.4 g/LALOGPS
logP-1.8ALOGPS
logP-2.5ChemAxon
logS-1.2ALOGPS
pKa (Strongest Acidic)0.97ChemAxon
pKa (Strongest Basic)1.58ChemAxon
Physiological Charge-3ChemAxon
Hydrogen Acceptor Count11ChemAxon
Hydrogen Donor Count6ChemAxon
Polar Surface Area195.57 ŲChemAxon
Rotatable Bond Count7ChemAxon
Refractivity73.75 m³·mol⁻¹ChemAxon
Polarizability32.01 ųChemAxon
Number of Rings1ChemAxon
Bioavailability0ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Biological Properties
Cellular Locations:Cytoplasm
Reactions:
SMPDB Pathways:Not Available
KEGG Pathways:
  • Amino sugar and nucleotide sugar metabolism ec00520
  • Phosphotransferase system (PTS) ec02060
EcoCyc Pathways:
  • 1,6-anhydro-N-acetylmuramic acid recycling PWY0-1261
Concentrations
Not Available
Spectra
Spectra:
Spectrum TypeDescriptionSplash Key
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_4_9) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0ab9-1029000000-91a85bd06c7e6f2a602eView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0pc1-4095000000-765e64ae1c8ee55f70c8View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0udi-4490000000-dbb75ae4c20320c9fb0fView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-004i-7529000000-291786395a609519cc42View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-004i-9001000000-6e876db83c1a2f929948View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-004i-9000000000-7c4ea65d6b40613925efView in MoNA
MSMass Spectrum (Electron Ionization)Not AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
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
  • Keseler, I. M., Collado-Vides, J., Santos-Zavaleta, A., Peralta-Gil, M., Gama-Castro, S., Muniz-Rascado, L., Bonavides-Martinez, C., Paley, S., Krummenacker, M., Altman, T., Kaipa, P., Spaulding, A., Pacheco, J., Latendresse, M., Fulcher, C., Sarker, M., Shearer, A. G., Mackie, A., Paulsen, I., Gunsalus, R. P., Karp, P. D. (2011). "EcoCyc: a comprehensive database of Escherichia coli biology." Nucleic Acids Res 39:D583-D590. Pubmed: 21097882
Synthesis Reference:Not Available
Material Safety Data Sheet (MSDS)Not Available
External Links:
ResourceLink
CHEBI ID47968
HMDB IDNot Available
Pubchem Compound ID24798720
Kegg IDC16698
ChemSpider ID21865486
Wikipedia IDNot Available
BioCyc IDCPD0-881
EcoCyc IDCPD0-881

Enzymes

General function:
Involved in transferase activity, transferring phosphorus-containing groups
Specific function:
General (non sugar-specific) component of the phosphoenolpyruvate-dependent sugar phosphotransferase system (sugar PTS). This major carbohydrate active-transport system catalyzes the phosphorylation of incoming sugar substrates concomitantly with their translocation across the cell membrane. Enzyme I transfers the phosphoryl group from phosphoenolpyruvate (PEP) to the phosphoryl carrier protein (HPr)
Gene Name:
ptsI
Uniprot ID:
P08839
Molecular weight:
63561
Reactions
Phosphoenolpyruvate + protein L-histidine = pyruvate + protein N(pi)-phospho-L-histidine.
General function:
Involved in sugar:hydrogen symporter activity
Specific function:
The phosphoenolpyruvate-dependent sugar phosphotransferase system (sugar PTS), a major carbohydrate active -transport system, catalyzes the phosphorylation of incoming sugar substrates concomitantly with their translocation across the cell membrane. This system is involved in glucose transport
Gene Name:
crr
Uniprot ID:
P69783
Molecular weight:
18251
Reactions
Protein EIIA N(pi)-phospho-L-histidine + protein EIIB = protein EIIA + protein EIIB N(pi)-phospho-L-histidine/cysteine.
General function:
Involved in carbon-oxygen lyase activity
Specific function:
Specifically catalyzes the cleavage of the D-lactyl ether substituent of MurNAc 6-phosphate, producing GlcNAc 6- phosphate and D-lactate. Is required for growth on MurNAc as the sole source of carbon and energy. Together with AnmK, is also required for the utilization of anhydro-N-acetylmuramic acid (anhMurNAc) either imported from the medium or derived from its own cell wall murein, and thus plays a role in cell wall recycling
Gene Name:
murQ
Uniprot ID:
P76535
Molecular weight:
31220
Reactions
N-acetylmuramate 6-phosphate + H(2)O = N-acetyl-D-glucosamine 6-phosphate + D-lactate.
General function:
Involved in protein-N(PI)-phosphohistidine-sugar phosphotransferase activity
Specific function:
The phosphoenolpyruvate-dependent sugar phosphotransferase system (sugar PTS), a major carbohydrate active -transport system, catalyzes the phosphorylation of incoming sugar substrates concomitantly with their translocation across the cell membrane. This system is involved in N-acetylmuramic acid (MurNAc) transport, yielding cytoplasmic MurNAc-6-P. Is responsible for growth on MurNAc as the sole source of carbon and energy. Is also able to take up anhydro-N-acetylmuramic acid (anhMurNAc), but cannot phosphorylate the carbon 6, probably because of the 1,6- anhydro ring
Gene Name:
murP
Uniprot ID:
P77272
Molecular weight:
49801
Reactions
Protein EIIB N(pi)-phospho-L-histidine/cysteine + sugar = protein EIIB + sugar phosphate.
General function:
Involved in ATP binding
Specific function:
Catalyzes the specific phosphorylation of 1,6-anhydro-N- acetylmuramic acid (anhMurNAc) with the simultaneous cleavage of the 1,6-anhydro ring, generating MurNAc-6-P. Is required for the utilization of anhMurNAc either imported from the medium or derived from its own cell wall murein, and thus plays a role in cell wall recycling
Gene Name:
anmK
Uniprot ID:
P77570
Molecular weight:
39496
Reactions
ATP + 1,6-anhydro-N-acetyl-beta-muramate + H(2)O = ADP + N-acetylmuramate 6-phosphate.
General function:
Involved in sugar:hydrogen symporter activity
Specific function:
General (non sugar-specific) component of the phosphoenolpyruvate-dependent sugar phosphotransferase system (sugar PTS). This major carbohydrate active-transport system catalyzes the phosphorylation of incoming sugar substrates concomitantly with their translocation across the cell membrane. The phosphoryl group from phosphoenolpyruvate (PEP) is transferred to the phosphoryl carrier protein HPr by enzyme I. Phospho-HPr then transfers it to the permease (enzymes II/III)
Gene Name:
ptsH
Uniprot ID:
P0AA04
Molecular weight:
9119
Reactions
Protein HPr N(pi)-phospho-L-histidine + protein EIIA = protein HPr + protein EIIA N(tau)-phospho-L-histidine.

Transporters

General function:
Involved in protein-N(PI)-phosphohistidine-sugar phosphotransferase activity
Specific function:
The phosphoenolpyruvate-dependent sugar phosphotransferase system (sugar PTS), a major carbohydrate active -transport system, catalyzes the phosphorylation of incoming sugar substrates concomitantly with their translocation across the cell membrane. This system is involved in N-acetylmuramic acid (MurNAc) transport, yielding cytoplasmic MurNAc-6-P. Is responsible for growth on MurNAc as the sole source of carbon and energy. Is also able to take up anhydro-N-acetylmuramic acid (anhMurNAc), but cannot phosphorylate the carbon 6, probably because of the 1,6- anhydro ring
Gene Name:
murP
Uniprot ID:
P77272
Molecular weight:
49801
Reactions
Protein EIIB N(pi)-phospho-L-histidine/cysteine + sugar = protein EIIB + sugar phosphate.