murG

murG
168

UDP-N-acetylglucosamine-N-acetylmuramyl-(pentapeptide)pyrophosphoryl-undecaprenol N-acetylglucosamine transferase, conversion of lipid I to lipid II

Locus
BSU_15220
Molecular weight
39.82 kDa
Isoelectric point
9.57
Protein length
Gene length
Function
peptidoglycan precursor biosynthesis
Product
UDP-N-acetylglucosamine-N-acetylmuramyl-(pentapeptide)pyrophosphoryl-undecaprenol N-acetylglucosamine transferase
Essential
yes
E.C.
2.4.1.227
Synonyms
murG

Genomic Context

Categories containing this gene/protein

List of homologs in different organisms, belongs to COG0707 (Galperin et al., 2021)

This gene is a member of the following regulons

Gene
Coordinates
1,591,540 → 1,592,631
Phenotypes of a mutant
essential PubMed
The protein
Catalyzed reaction/ biological activity
converts lipid I to lipid II by attaching GlcNAc to the bactoprenol carrier-conjugated UDP-N-acetylmuramic acid (UDP-MurNAc) pentapeptide molecule
Mur2Ac(oyl-L-Ala-γ-D-Glu-L-Lys-D-Ala-D-Ala)-diphospho-di-trans,octa-cis-undecaprenol + UDP-N-acetyl-α-D-glucosamine --> β-D-GlcNAc-(1→4)-Mur2Ac(oyl-L-Ala-γ-D-Glu-L-Lys-D-Ala-D-Ala)-diphospho-di-trans,octa-cis-undecaprenol + H+ + UDP (according to UniProt)
Protein family
glycosyltransferase 28 family (with UgtP and YkoN, according to UniProt)
Structure
1F0K (PDB) (from Escherichia coli, 30% identity, 52% similarity) PubMed
Effectors of protein activity
activity during sporulation is stimulated by SpoVK PubMed
peripheral membrane protein PubMed
associates with membrane areas of increased fluidity PubMed
in the presence of daptomycin, MurG delocalizes from the membrane to the cytoplasm PubMed
forms banded patterns along the length of the cell, this pattern formation depends on MreB PubMed
division septa PubMed
Expression and Regulation
Operons
Description
Regulation
expressed during vegatative growth, then switched off, and again expressed during sporulation in the mother cell (SigE) PubMed
Regulatory mechanism
SpoIIID: repression, PubMed, in spoIIID regulon
Sigma factors
SigM: sigma factor, (promoter within MurG) PubMed, in sigM regulon
SigA: sigma factor, PubMed, in sigA regulon
SigE: sigma factor, PubMed, in sigE regulon
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murGsbp

2025-03-27 01:52:39

Jstuelk

115

5a24cdfec598f0a2424898f47e06e5544408d3d6

1A7F525A9A274FAF9AE05A426F5AE7383E95D9E3

Description
Regulation
expressed during vegatative growth PubMed
Regulatory mechanism
stringent response: negative regulation, in stringent response
SpoIIID: repression, PubMed, in spoIIID regulon
Sigma factors
SigE: sigma factor, PubMed, in sigE regulon
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murEsbp

2025-03-27 05:17:39

Jstuelk

117

68c6899b3f1263bd636c35a4ea9512c00078a714

2F040145AC628A38E3D11955965F4DA256DE6790

Description
Regulation
expressed during vegatative growth, then switched off, and again expressed during sporulation in the mother cell (SigE) PubMed
Open in new tab

spoVEsbp

2025-03-27 20:57:56

Jstuelk

133

6fa043950e40c3a1d4f91339581472acb9db18da

C066C3357FB70D8EEB595C678C068B56731F8F59

Biological materials
FLAG-tag construct
GP2002 murG-3xFLAG ermC (based on pGP1087), available in Jörg Stülke's lab
References
Reviews
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Original Publications
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D52FDB5015B10E9B26D7FED5708457890C6EA43D

Page visits: 7830

Time of last update: 2025-04-06 05:20:55

Author of last update: Jstuelk