Record Information
Version2.0
Creation Date2012-05-31 14:33:32 -0600
Update Date2015-06-03 17:19:33 -0600
Secondary Accession Numbers
  • ECMDB20214
Identification
Name:Undecaprenyl-diphospho-N-acetylmuramoyl-(N-acetylglucosamine)-L-alanyl-gamma-D-glutamyl-L-lysyl-D-alanyl-D-alanine
DescriptionUndecaprenyl-diphospho-N-acetylmuramoyl-(N-acetylglucosamine)-L-alanyl-gamma-D-glutamyl-L-lysyl-D-alanyl-D-alanine is an intermediate in peptidoglycan synthesis. It is a substrate for the enzyme undecaprenyldiphospho-muramoylpentapeptide beta-N-acetylglucosaminyltransferase (murG). Peptidoglycan can be described as a fisherman's net that encloses bacteria. The mesh of the net is made of two segments of parallel, somewhat inextensible glycan threads, held together by two small elastic peptide crosslinks allowing the net to expand or shrink. The glycan moiety of the peptidoglycan is very uniform among all bacteria, and is made up of alternating β-1,4-linked N-acetylglucosamine and N-acetyl muramate residues, with an average chain lengthof 10 to 65 disaccharide units (depending on the organism). The peptidoglycan synthesis pathway starts in 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-α-D-glucosamine, yielding the complete monomeric unit a lipid II, also known as lipid II. This final lipid intermediate is transferred by an as yet unknown mechanism 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. Peptide crosslinks form between different parts of the peptides depending on the organism. For example, in Mycobacteria and in E. coli most links form between the carboxyl group of the penultimate D-alanine (residue 4) of one peptide to the amino group at the D-center of meso-diaminopimelate (residue 3) of an adjacent peptide of a second glycan chain (as in E. coli). The crosslinking reaction is catalyzed by transpeptidases and involves the cleavage of the D-alanyl-D-alanine bond of the donor peptide, providing the energy to drive the reaction. As a result, the peptides in the peptidoglycan polymers are one or two amino acids shorter than the peptides in the monomers.
Structure
Thumb
Synonyms:
  • Undecaprenyl-diphospho-N-acetylmuramoyl-(N-acetylglucosamine)-L-alanyl-g-D-glutamyl-L-lysyl-D-alanyl-D-alanine
  • Undecaprenyl-diphospho-N-acetylmuramoyl-(N-acetylglucosamine)-L-alanyl-γ-D-glutamyl-L-lysyl-D-alanyl-D-alanine
Chemical Formula:C94H156N8O26P2
Weight:Average: 1876.23
Monoisotopic: 1875.060600228
InChI Key:ULXTYUPMJXVUHQ-ONIGEKDKSA-N
InChI:InChI=1S/C94H156N8O26P2/c1-59(2)31-21-32-60(3)33-22-34-61(4)35-23-36-62(5)37-24-38-63(6)39-25-40-64(7)41-26-42-65(8)43-27-44-66(9)45-28-46-67(10)47-29-48-68(11)49-30-50-69(12)54-56-122-129(118,119)128-130(120,121)127-94-82(100-75(18)106)86(85(79(58-104)125-94)126-93-81(99-74(17)105)84(109)83(108)78(57-103)124-93)123-73(16)89(112)96-71(14)88(111)102-77(92(116)117)52-53-80(107)101-76(51-19-20-55-95)90(113)97-70(13)87(110)98-72(15)91(114)115/h31,33,35,37,39,41,43,45,47,49,54,70-73,76-79,81-86,93-94,103-104,108-109H,19-30,32,34,36,38,40,42,44,46,48,50-53,55-58,95H2,1-18H3,(H,96,112)(H,97,113)(H,98,110)(H,99,105)(H,100,106)(H,101,107)(H,102,111)(H,114,115)(H,116,117)(H,118,119)(H,120,121)/b60-33+,61-35+,62-37+,63-39+,64-41+,65-43+,66-45+,67-47+,68-49+,69-54+/t70-,71+,72-,73?,76+,77?,78-,79-,81-,82-,83-,84-,85-,86-,93+,94-/m1/s1
CAS number:Not Available
IUPAC Name:4-{[(1S)-5-amino-1-{[(1R)-1-{[(1R)-1-carboxyethyl]-C-hydroxycarbonimidoyl}ethyl]-C-hydroxycarbonimidoyl}pentyl]-C-hydroxycarbonimidoyl}-2-{[(2S)-2-[(2-{[(2R,3S,4R,5R,6R)-3-{[(2S,3R,4R,5S,6R)-4,5-dihydroxy-3-[(1-hydroxyethylidene)amino]-6-(hydroxymethyl)oxan-2-yl]oxy}-6-{[hydroxy({[hydroxy({[(2E,6E,10E,14E,18E,22E,26E,30E,34E,38E)-3,7,11,15,19,23,27,31,35,39,43-undecamethyltetratetraconta-2,6,10,14,18,22,26,30,34,38,42-undecaen-1-yl]oxy})phosphoryl]oxy})phosphoryl]oxy}-5-[(1-hydroxyethylidene)amino]-2-(hydroxymethyl)oxan-4-yl]oxy}-1-hydroxypropylidene)amino]-1-hydroxypropylidene]amino}butanoic acid
Traditional IUPAC Name:4-{[(1S)-5-amino-1-{[(1R)-1-{[(1R)-1-carboxyethyl]-C-hydroxycarbonimidoyl}ethyl]-C-hydroxycarbonimidoyl}pentyl]-C-hydroxycarbonimidoyl}-2-{[(2S)-2-[(2-{[(2R,3S,4R,5R,6R)-3-{[(2S,3R,4R,5S,6R)-4,5-dihydroxy-3-[(1-hydroxyethylidene)amino]-6-(hydroxymethyl)oxan-2-yl]oxy}-6-{[hydroxy({hydroxy[(2E,6E,10E,14E,18E,22E,26E,30E,34E,38E)-3,7,11,15,19,23,27,31,35,39,43-undecamethyltetratetraconta-2,6,10,14,18,22,26,30,34,38,42-undecaen-1-yl]oxyphosphoryl}oxy)phosphoryl]oxy}-5-[(1-hydroxyethylidene)amino]-2-(hydroxymethyl)oxan-4-yl]oxy}-1-hydroxypropylidene)amino]-1-hydroxypropylidene]amino}butanoic acid
SMILES:NCCCC[C@]([H])(N=C(O)CCC([H])(N=C(O)[C@@](C)([H])N=C(O)C(C)([H])O[C@@]1([H])[C@]([H])(O[C@]2([H])O[C@]([H])(CO)[C@](O)([H])[C@@](O)([H])[C@@]2([H])N=C(C)O)[C@@]([H])(CO)O[C@]([H])(OP(O)(=O)OP(O)(=O)OC\C([H])=C(/C)CC\C([H])=C(/C)CC\C([H])=C(/C)CC\C([H])=C(/C)CC\C([H])=C(/C)CC\C([H])=C(/C)CC\C([H])=C(/C)CC\C([H])=C(/C)CC\C([H])=C(/C)CC\C([H])=C(/C)CCC=C(C)C)[C@]1([H])N=C(C)O)C(=O)O)C(O)=N[C@@](C)([H])C(O)=N[C@@](C)([H])C(=O)O
Chemical Taxonomy
Description belongs to the class of organic compounds known as n-carbamoyl-alpha amino acids. N-carbamoyl-alpha amino acids are compounds containing an alpha amino acid which bears an carbamoyl group at its terminal nitrogen atom.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
Sub ClassAmino acids, peptides, and analogues
Direct ParentN-carbamoyl-alpha amino acids
Alternative Parents
Substituents
  • N-carbamoyl-alpha-amino acid
  • Urea
  • Carbonic acid derivative
  • Monocarboxylic acid or derivatives
  • Carboxylic acid
  • Organic nitrogen compound
  • Organic oxygen compound
  • Organopnictogen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organooxygen compound
  • Organonitrogen compound
  • Primary aliphatic amine
  • Carbonyl group
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Physical Properties
State:Not Available
Charge:-4
Melting point:Not Available
Experimental Properties:
PropertyValueSource
Predicted Properties
PropertyValueSource
Water Solubility0.0043 g/LALOGPS
logP3.45ALOGPS
logP14.52ChemAxon
logS-5.6ALOGPS
pKa (Strongest Acidic)1.71ChemAxon
pKa (Strongest Basic)10.21ChemAxon
Physiological Charge-4ChemAxon
Hydrogen Acceptor Count31ChemAxon
Hydrogen Donor Count16ChemAxon
Polar Surface Area548.88 ŲChemAxon
Rotatable Bond Count63ChemAxon
Refractivity507.48 m³·mol⁻¹ChemAxon
Polarizability207.17 ųChemAxon
Number of Rings2ChemAxon
Bioavailability0ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Biological Properties
Cellular Locations:Membrane
Reactions:
SMPDB Pathways:Not Available
KEGG Pathways:
EcoCyc Pathways:Not Available
Concentrations
Not Available
Spectra
Spectra:
Spectrum TypeDescriptionSplash Key
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0a4r-2110500490-85f0bea71adaac6465d9View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-000b-4210310941-e8bf11bc09e946ec2beaView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-000j-9331510610-8eac1ca67c4dcbaece92View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0570-3040011569-c8d757b7c829d022a532View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0a4i-9801102288-19c947c862e487f9312eView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0a4i-5910001005-a0d168742cb0c3eaf16dView 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
Synthesis Reference:Not Available
Material Safety Data Sheet (MSDS)Not Available
External Links:
ResourceLink
CHEBI IDNot Available
HMDB IDNot Available
Pubchem Compound ID23724490
Kegg IDC05893
ChemSpider IDNot Available
Wikipedia IDNot Available
BioCyc IDNot Available

Enzymes

General function:
Involved in undecaprenyldiphospho-muramoylpentapeptide beta-N-acetylglucosaminyltransferase activity
Specific function:
Cell wall formation. Catalyzes the transfer of a GlcNAc subunit on undecaprenyl-pyrophosphoryl-MurNAc-pentapeptide (lipid intermediate I) to form undecaprenyl-pyrophosphoryl-MurNAc- (pentapeptide)GlcNAc (lipid intermediate II)
Gene Name:
murG
Uniprot ID:
P17443
Molecular weight:
37815
Reactions
UDP-N-acetylglucosamine + Mur2Ac(oyl-L-Ala-gamma-D-Glu-L-Lys-D-Ala-D-Ala)-diphosphoundecaprenol = UDP + GlcNAc-(1->4)-Mur2Ac(oyl-L-Ala-gamma-D-Glu-L-Lys-D-Ala-D-Ala)-diphosphoundecaprenol.