A0AA42FQ04 · A0AA42FQ04_9GAMM

  • Protein
    N-acetylmuramic acid 6-phosphate etherase
  • Gene
    murQ
  • Status
    UniProtKB unreviewed (TrEMBL)
  • Amino acids
  • Protein existence
    Evidence at transcript level
  • Annotation score
    3/5

Function

function

Specifically catalyzes the cleavage of the D-lactyl ether substituent of MurNAc 6-phosphate, producing GlcNAc 6-phosphate and D-lactate. 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.

Miscellaneous

A lyase-type mechanism (elimination/hydration) is suggested for the cleavage of the lactyl ether bond of MurNAc 6-phosphate, with the formation of an alpha,beta-unsaturated aldehyde intermediate with (E)-stereochemistry, followed by the syn addition of water to give product.

Caution

The sequence shown here is derived from an EMBL/GenBank/DDBJ whole genome shotgun (WGS) entry which is preliminary data.

Catalytic activity

Pathway

Amino-sugar metabolism; 1,6-anhydro-N-acetylmuramate degradation.
Amino-sugar metabolism; N-acetylmuramate degradation.
Cell wall biogenesis; peptidoglycan recycling.

Features

Showing features for active site.

TypeIDPosition(s)Description
Active site88Proton donor
Active site119

GO annotations

AspectTerm
Molecular Functioncarbohydrate derivative binding
Molecular Functioncarbon-oxygen lyase activity
Molecular Functionether hydrolase activity
Biological Processamino sugar catabolic process
Biological Processpeptidoglycan turnover

Keywords

Enzyme and pathway databases

Names & Taxonomy

Protein names

  • Recommended name
    N-acetylmuramic acid 6-phosphate etherase
  • EC number
  • Short names
    MurNAc-6-P etherase
  • Alternative names
    • N-acetylmuramic acid 6-phosphate hydrolase
    • N-acetylmuramic acid 6-phosphate lyase

Gene names

    • Name
      murQ
    • ORF names
      P7V44_12520

Organism names

  • Taxonomic identifier
  • Strain
    • CRE-3FA-0001
  • Taxonomic lineage
    Bacteria > Pseudomonadota > Gammaproteobacteria > Enterobacterales > Morganellaceae > Providencia

Accessions

  • Primary accession
    A0AA42FQ04

Proteomes

Expression

Induction

Induced by MurNAc 6-phosphate that releases the repressor MurR from the DNA. Repressed by MurR in the absence of MurNAc 6-phosphate.

Interaction

Subunit

Homodimer.

Family & Domains

Features

Showing features for domain.

TypeIDPosition(s)Description
Domain60-223SIS

Sequence similarities

Belongs to the GCKR-like family. MurNAc-6-P etherase subfamily.

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    305
  • Mass (Da)
    32,542
  • Last updated
    2024-01-24 v1
  • Checksum
    CE96B13399495F14
MSLAESTLSDCLQNEFNQETLQFSRLETLSMVTLINQADSTVAGAIQTVLPAIAEAVDAIAECLKQGGRLFYIGAGTSGRLAVLDSAECPPTFGTSPELVQSIIAGGQDAMLKAVENIEDSPEAAIEELKKRQLCGKDVVVGIAASGRTPFTLAGIDYANGLGALTVAITTRGRGLLSHIAKIAIAPDVGPEVLSGSTRMKSGTAQKMILGMLSTCVMGRLGRIHTNLMIDVVASNIKLLRRAERIVSEVCGIDTQIAAELLVQVDYHPRRAILMYELQISAQQATDIVQQHPNTTLDKMLETHR

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
JARRYG010000012
EMBL· GenBank· DDBJ
MDG4697058.1
EMBL· GenBank· DDBJ
Genomic DNA

Similar Proteins

Disclaimer

Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care. Our staff consists of biologists and biochemists that are not trained to give medical advice.
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