A0A7W7D269 · A0A7W7D269_9ACTN
- ProteinLipid II isoglutaminyl synthase (glutamine-hydrolyzing) subunit MurT
- GenemurT
- StatusUniProtKB unreviewed (TrEMBL)
- Organism
- Amino acids409 (go to sequence)
- Protein existenceInferred from homology
- Annotation score3/5
Function
function
The lipid II isoglutaminyl synthase complex catalyzes the formation of alpha-D-isoglutamine in the cell wall lipid II stem peptide. The MurT subunit catalyzes the ATP-dependent amidation of D-glutamate residue of lipid II, converting it to an isoglutamine residue.
Catalytic activity
- beta-D-GlcNAc-(1->4)-Mur2Ac(oyl-L-Ala-gamma-D-Glu-L-Lys-D-Ala-D-Ala)-di-trans,octa-cis-undecaprenyl diphosphate + L-glutamine + ATP + H2O = beta-D-GlcNAc-(1->4)-Mur2Ac(oyl-L-Ala-D-isoglutaminyl-L-Lys-D-Ala-D-Ala)-di-trans,octa-cis-undecaprenyl diphosphate + L-glutamate + ADP + phosphate + H+
- beta-D-GlcNAc-(1->4)-Mur2Ac(oyl-L-Ala-gamma-D-Glu-L-Lys-D-Ala-D-Ala)-di-trans,octa-cis-undecaprenyl diphosphate + ATP = beta-D-GlcNAc-(1->4)-Mur2Ac(oyl-L-Ala-gamma-D-O-P-Glu-L-Lys-D-Ala-D-Ala)-di-trans,octa-cis-undecaprenyl diphosphate + ADP
- beta-D-GlcNAc-(1->4)-Mur2Ac(oyl-L-Ala-gamma-D-O-P-Glu-L-Lys-D-Ala-D-Ala)-di-trans,octa-cis-undecaprenyl diphosphate + NH4+ = beta-D-GlcNAc-(1->4)-Mur2Ac(oyl-L-Ala-D-isoglutaminyl-L-Lys-D-Ala-D-Ala)-di-trans,octa-cis-undecaprenyl diphosphate + phosphate + H+
Pathway
Cell wall biogenesis; peptidoglycan biosynthesis.
Features
Showing features for binding site, active site.
GO annotations
Aspect | Term | |
---|---|---|
Molecular Function | acid-amino acid ligase activity | |
Molecular Function | ATP binding | |
Molecular Function | carbon-nitrogen ligase activity on lipid II | |
Molecular Function | zinc ion binding | |
Biological Process | cell wall organization | |
Biological Process | peptidoglycan biosynthetic process | |
Biological Process | regulation of cell shape |
Keywords
- Molecular function
- Biological process
- Ligand
Enzyme and pathway databases
Names & Taxonomy
Protein names
- Recommended nameLipid II isoglutaminyl synthase (glutamine-hydrolyzing) subunit MurT
- EC number
Gene names
Organism names
- Organism
- Strain
- Taxonomic lineageBacteria > Actinomycetota > Actinomycetes > Streptosporangiales > Streptosporangiaceae > Sphaerisporangium
Accessions
- Primary accessionA0A7W7D269
Proteomes
Interaction
Subunit
Forms a heterodimer with GatD.
Structure
Family & Domains
Features
Showing features for domain.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Domain | 61-176 | Mur ligase central | ||||
Sequence: TNGKTTTTRLITSALQELGEVATNAFGANMPAGHVSALSQAKQAPLAVLEVDEKYLPEVLDTTGASVVVLMNLSRDQMDRAAEIWLLAQKWQRALTGKNTHVIANCDDPLVTWGAS | ||||||
Domain | 300-397 | Lipid II isoglutaminyl synthase (glutamine-hydrolyzing) subunit MurT C-terminal | ||||
Sequence: LAKNPAGWLEAFEVSDPSLPIILSVNAQGPDGRDTSWLWDVDYRVLRGRPVYVTGERRLDLALRLDVAEVPFQLCDTFEQAVDPQPPGRVDVIANYTA |
Sequence similarities
Belongs to the MurCDEF family. MurT subfamily.
Family and domain databases
Sequence
- Sequence statusComplete
- Length409
- Mass (Da)44,883
- Last updated2021-06-02 v1
- Checksum5ABAB1172E984600