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Protein

UDP-N-acetylmuramate--L-alanine ligase

Gene

murC

Organism
Escherichia coli (strain K12)
Status
Reviewed-Annotation score: Annotation score: 5 out of 5-Experimental evidence at protein leveli

Functioni

Cell wall formation.1 Publication

Catalytic activityi

ATP + UDP-N-acetyl-alpha-D-muramate + L-alanine = ADP + phosphate + UDP-N-acetyl-alpha-D-muramoyl-L-alanine.1 Publication

Kineticsi

  1. KM=100 µM for UDP-N-acetyl-alpha-D-muramate1 Publication
  2. KM=20 µM for L-alanine1 Publication
  3. KM=450 µM for ATP1 Publication
  1. Vmax=17.3 µmol/min/mg enzyme1 Publication

pH dependencei

Optimum pH is 8.6.1 Publication

Temperature dependencei

Optimum temperature is 45 degrees Celsius.1 Publication

Pathwayi: peptidoglycan biosynthesis

This protein is involved in the pathway peptidoglycan biosynthesis, which is part of Cell wall biogenesis.
View all proteins of this organism that are known to be involved in the pathway peptidoglycan biosynthesis and in Cell wall biogenesis.

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Nucleotide bindingi126 – 132ATPSequence analysis7

GO - Molecular functioni

  • ATP binding Source: EcoliWiki
  • magnesium ion binding Source: EcoliWiki
  • UDP-N-acetylmuramate-L-alanine ligase activity Source: EcoliWiki

GO - Biological processi

  • cell cycle Source: UniProtKB-KW
  • cell division Source: UniProtKB-KW
  • cell wall organization Source: UniProtKB-KW
  • peptidoglycan biosynthetic process Source: EcoCyc
  • regulation of cell shape Source: UniProtKB-KW
Complete GO annotation...

Keywords - Molecular functioni

Ligase

Keywords - Biological processi

Cell cycle, Cell division, Cell shape, Cell wall biogenesis/degradation, Peptidoglycan synthesis

Keywords - Ligandi

ATP-binding, Nucleotide-binding

Enzyme and pathway databases

BioCyciEcoCyc:UDP-NACMUR-ALA-LIG-MONOMER.
ECOL316407:JW0089-MONOMER.
MetaCyc:UDP-NACMUR-ALA-LIG-MONOMER.
BRENDAi6.3.2.8. 2026.
UniPathwayiUPA00219.

Names & Taxonomyi

Protein namesi
Recommended name:
UDP-N-acetylmuramate--L-alanine ligase (EC:6.3.2.8)
Alternative name(s):
UDP-N-acetylmuramoyl-L-alanine synthetase
Gene namesi
Name:murC
Ordered Locus Names:b0091, JW0089
OrganismiEscherichia coli (strain K12)
Taxonomic identifieri83333 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacteralesEnterobacteriaceaeEscherichia
Proteomesi
  • UP000000318 Componenti: Chromosome
  • UP000000625 Componenti: Chromosome

Organism-specific databases

EcoGeneiEG10619. murC.

Subcellular locationi

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Cytoplasm

Pathology & Biotechi

Mutagenesis

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Mutagenesisi344G → D in murC3. 1

Chemistry databases

ChEMBLiCHEMBL5168.

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001820891 – 491UDP-N-acetylmuramate--L-alanine ligaseAdd BLAST491

Proteomic databases

PaxDbiP17952.
PRIDEiP17952.

Interactioni

Binary interactionsi

WithEntry#Exp.IntActNotes
flxAP776093EBI-554607,EBI-553024

Protein-protein interaction databases

BioGridi4261857. 473 interactors.
DIPiDIP-10278N.
IntActiP17952. 15 interactors.
MINTiMINT-1222662.
STRINGi511145.b0091.

Chemistry databases

BindingDBiP17952.

Structurei

Secondary structure

1491
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Helixi3 – 9Combined sources7
Turni10 – 12Combined sources3
Beta strandi21 – 26Combined sources6
Helixi32 – 41Combined sources10
Beta strandi45 – 49Combined sources5
Helixi55 – 62Combined sources8
Beta strandi66 – 70Combined sources5
Helixi73 – 76Combined sources4
Beta strandi80 – 84Combined sources5
Helixi93 – 100Combined sources8
Beta strandi105 – 107Combined sources3
Helixi108 – 116Combined sources9
Beta strandi119 – 128Combined sources10
Helixi130 – 143Combined sources14
Beta strandi149 – 151Combined sources3
Turni157 – 159Combined sources3
Beta strandi160 – 164Combined sources5
Beta strandi167 – 174Combined sources8
Helixi181 – 184Combined sources4
Beta strandi188 – 192Combined sources5
Helixi200 – 202Combined sources3
Turni203 – 205Combined sources3
Helixi207 – 218Combined sources12
Beta strandi226 – 230Combined sources5
Helixi234 – 239Combined sources6
Helixi240 – 242Combined sources3
Beta strandi245 – 253Combined sources9
Beta strandi257 – 266Combined sources10
Beta strandi269 – 275Combined sources7
Beta strandi282 – 288Combined sources7
Helixi291 – 307Combined sources17
Helixi311 – 319Combined sources9
Beta strandi327 – 341Combined sources15
Beta strandi343 – 351Combined sources9
Helixi356 – 367Combined sources12
Beta strandi372 – 379Combined sources8
Helixi384 – 387Combined sources4
Turni388 – 390Combined sources3
Helixi391 – 398Combined sources8
Beta strandi401 – 406Combined sources6
Beta strandi412 – 414Combined sources3
Helixi422 – 425Combined sources4
Helixi447 – 450Combined sources4
Helixi451 – 453Combined sources3
Beta strandi456 – 463Combined sources8
Helixi468 – 477Combined sources10
Turni478 – 480Combined sources3

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1CC9model-A1-491[»]
2F00X-ray2.50A/B1-491[»]
ProteinModelPortaliP17952.
SMRiP17952.
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiP17952.

Family & Domainsi

Sequence similaritiesi

Belongs to the MurCDEF family.Curated

Phylogenomic databases

eggNOGiENOG4105DFU. Bacteria.
COG0773. LUCA.
HOGENOMiHOG000256031.
InParanoidiP17952.
KOiK01924.
OMAiFHFIGIG.
PhylomeDBiP17952.

Family and domain databases

Gene3Di3.40.1190.10. 1 hit.
3.40.50.720. 1 hit.
3.90.190.20. 1 hit.
HAMAPiMF_00046. MurC. 1 hit.
InterProiIPR004101. Mur_ligase_C.
IPR013221. Mur_ligase_cen.
IPR000713. Mur_ligase_N.
IPR016040. NAD(P)-bd_dom.
IPR005758. UDP-N-AcMur_Ala_ligase_murC.
[Graphical view]
PfamiPF01225. Mur_ligase. 1 hit.
PF02875. Mur_ligase_C. 1 hit.
PF08245. Mur_ligase_M. 1 hit.
[Graphical view]
SUPFAMiSSF53244. SSF53244. 1 hit.
SSF53623. SSF53623. 1 hit.
TIGRFAMsiTIGR01082. murC. 1 hit.

Sequencei

Sequence statusi: Complete.

P17952-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MNTQQLAKLR SIVPEMRRVR HIHFVGIGGA GMGGIAEVLA NEGYQISGSD
60 70 80 90 100
LAPNPVTQQL MNLGATIYFN HRPENVRDAS VVVVSSAISA DNPEIVAAHE
110 120 130 140 150
ARIPVIRRAE MLAELMRFRH GIAIAGTHGK TTTTAMVSSI YAEAGLDPTF
160 170 180 190 200
VNGGLVKAAG VHARLGHGRY LIAEADESDA SFLHLQPMVA IVTNIEADHM
210 220 230 240 250
DTYQGDFENL KQTFINFLHN LPFYGRAVMC VDDPVIRELL PRVGRQTTTY
260 270 280 290 300
GFSEDADVRV EDYQQIGPQG HFTLLRQDKE PMRVTLNAPG RHNALNAAAA
310 320 330 340 350
VAVATEEGID DEAILRALES FQGTGRRFDF LGEFPLEPVN GKSGTAMLVD
360 370 380 390 400
DYGHHPTEVD ATIKAARAGW PDKNLVMLFQ PHRFTRTRDL YDDFANVLTQ
410 420 430 440 450
VDTLLMLEVY PAGEAPIPGA DSRSLCRTIR GRGKIDPILV PDPARVAEML
460 470 480 490
APVLTGNDLI LVQGAGNIGK IARSLAEIKL KPQTPEEEQH D
Length:491
Mass (Da):53,626
Last modified:August 1, 1991 - v2
Checksum:iD201B35931C013FB
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X52644 Genomic DNA. Translation: CAA36868.1.
X55034 Genomic DNA. Translation: CAA38868.1.
U00096 Genomic DNA. Translation: AAC73202.1.
AP009048 Genomic DNA. Translation: BAB96659.1.
U67892 Genomic DNA. Translation: AAB60787.1.
PIRiJQ0545. CEECAM.
RefSeqiNP_414633.1. NC_000913.3.
WP_001096049.1. NZ_LN832404.1.

Genome annotation databases

EnsemblBacteriaiAAC73202; AAC73202; b0091.
BAB96659; BAB96659; BAB96659.
GeneIDi946153.
KEGGiecj:JW0089.
eco:b0091.
PATRICi32115287. VBIEscCol129921_0095.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X52644 Genomic DNA. Translation: CAA36868.1.
X55034 Genomic DNA. Translation: CAA38868.1.
U00096 Genomic DNA. Translation: AAC73202.1.
AP009048 Genomic DNA. Translation: BAB96659.1.
U67892 Genomic DNA. Translation: AAB60787.1.
PIRiJQ0545. CEECAM.
RefSeqiNP_414633.1. NC_000913.3.
WP_001096049.1. NZ_LN832404.1.

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1CC9model-A1-491[»]
2F00X-ray2.50A/B1-491[»]
ProteinModelPortaliP17952.
SMRiP17952.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

BioGridi4261857. 473 interactors.
DIPiDIP-10278N.
IntActiP17952. 15 interactors.
MINTiMINT-1222662.
STRINGi511145.b0091.

Chemistry databases

BindingDBiP17952.
ChEMBLiCHEMBL5168.

Proteomic databases

PaxDbiP17952.
PRIDEiP17952.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiAAC73202; AAC73202; b0091.
BAB96659; BAB96659; BAB96659.
GeneIDi946153.
KEGGiecj:JW0089.
eco:b0091.
PATRICi32115287. VBIEscCol129921_0095.

Organism-specific databases

EchoBASEiEB0614.
EcoGeneiEG10619. murC.

Phylogenomic databases

eggNOGiENOG4105DFU. Bacteria.
COG0773. LUCA.
HOGENOMiHOG000256031.
InParanoidiP17952.
KOiK01924.
OMAiFHFIGIG.
PhylomeDBiP17952.

Enzyme and pathway databases

UniPathwayiUPA00219.
BioCyciEcoCyc:UDP-NACMUR-ALA-LIG-MONOMER.
ECOL316407:JW0089-MONOMER.
MetaCyc:UDP-NACMUR-ALA-LIG-MONOMER.
BRENDAi6.3.2.8. 2026.

Miscellaneous databases

EvolutionaryTraceiP17952.
PROiP17952.

Family and domain databases

Gene3Di3.40.1190.10. 1 hit.
3.40.50.720. 1 hit.
3.90.190.20. 1 hit.
HAMAPiMF_00046. MurC. 1 hit.
InterProiIPR004101. Mur_ligase_C.
IPR013221. Mur_ligase_cen.
IPR000713. Mur_ligase_N.
IPR016040. NAD(P)-bd_dom.
IPR005758. UDP-N-AcMur_Ala_ligase_murC.
[Graphical view]
PfamiPF01225. Mur_ligase. 1 hit.
PF02875. Mur_ligase_C. 1 hit.
PF08245. Mur_ligase_M. 1 hit.
[Graphical view]
SUPFAMiSSF53244. SSF53244. 1 hit.
SSF53623. SSF53623. 1 hit.
TIGRFAMsiTIGR01082. murC. 1 hit.
ProtoNetiSearch...

Entry informationi

Entry nameiMURC_ECOLI
AccessioniPrimary (citable) accession number: P17952
Secondary accession number(s): O07099
Entry historyi
Integrated into UniProtKB/Swiss-Prot: November 1, 1990
Last sequence update: August 1, 1991
Last modified: November 2, 2016
This is version 164 of the entry and version 2 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

3D-structure, Complete proteome, Direct protein sequencing, Reference proteome

Documents

  1. Escherichia coli
    Escherichia coli (strain K12): entries and cross-references to EcoGene
  2. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  3. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  4. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.