Protein Family Models

This HMM hits multiple proteins of peptidoglycan (murein) biosynthesis, such as MurC, MurD, MurE, and MurF of Escherichia coli.

Date:

2024-08-14

This family contains a number of related ligase enzymes which have EC numbers 6.3.2.*. This family includes: MurC (Swiss:P17952), MurD (Swiss:P14900), MurE (Swiss:P22188), MurF (Swiss:P11880), Mpl (Swiss:P37773) and FolC (Swiss:P08192). MurC, MurD, Mure and MurF catalyse consecutive steps in the synthesis of peptidoglycan. Peptidoglycan consists of a sheet of two sugar derivatives, with one of these N-acetylmuramic acid attaching to a small pentapeptide. The pentapeptide is is made of L-alanine, D-glutamic acid, Meso-diaminopimelic acid and D-alanyl alanine. The peptide moiety is synthesised by successively adding these amino acids to UDP-N-acetylmuramic acid. MurC transfers the L-alanine, MurD transfers the D-glutamate, MurE transfers the diaminopimelic acid, and MurF transfers the D-alanyl alanine. This family also includes Folylpolyglutamate synthase that transfers glutamate to folylpolyglutamate. [1]. 9218784. Crystal structure of UDP-N-acetylmuramoyl-L-alanine:D-glutamate. ligase from Escherichia coli.. Bertrand JA, Auger G, Fanchon E, Martin L, Blanot D, van. Heijenoort J, Dideberg O;. EMBO J 1997;16:3416-3425. (from Pfam)

Date:

2024-08-14

This family contains a number of related ligase enzymes which have EC numbers 6.3.2.*. This family includes: MurC (Swiss:P17952), MurD (Swiss:P14900), MurE (Swiss:P22188), MurF (Swiss:P11880), Mpl (Swiss:P37773) and FolC (Swiss:P08192). MurC, MurD, Mure and MurF catalyse consecutive steps in the synthesis of peptidoglycan. Peptidoglycan consists of a sheet of two sugar derivatives, with one of these N-acetylmuramic acid attaching to a small pentapeptide. The pentapeptide is is made of L-alanine, D-glutamic acid, Meso-diaminopimelic acid and D-alanyl alanine. The peptide moiety is synthesised by successively adding these amino acids to UDP-N-acetylmuramic acid. MurC transfers the L-alanine, MurD transfers the D-glutamate, MurE transfers the diaminopimelic acid, and MurF transfers the D-alanyl alanine. This family also includes Folylpolyglutamate synthase that transfers glutamate to folylpolyglutamate. [1]. 9218784. Crystal structure of UDP-N-acetylmuramoyl-L-alanine:D-glutamate. ligase from Escherichia coli.. Bertrand JA, Auger G, Fanchon E, Martin L, Blanot D, van. Heijenoort J, Dideberg O;. EMBO J 1997;16:3416-3425. (from Pfam)

Date:

2024-08-14

UDP-N-acetylmuramate--L-alanine ligase catalyzes the addition of the first amino acid to the cytoplasmic precursor of the bacterial cell wall peptidoglycan

Date:

2024-04-26

This HMM describes the MurC protein in bacterial peptidoglycan (murein) biosynthesis. In a few species (Mycobacterium leprae, the Chlamydia), the amino acid may be L-serine or glycine instead of L-alanine. A related protein, UDP-N-acetylmuramate:L-alanyl-gamma-D-glutamyl-meso-diaminopimelate ligase (murein tripeptide ligase) is described by HMM TIGR01081.

Gene:

murC

Date:

2021-04-27