A0A1Q7F797 · A0A1Q7F797_9ARCH
- ProteinPhosphoribosyl-AMP cyclohydrolase
- GenehisI
- StatusUniProtKB unreviewed (TrEMBL)
- Amino acids109 (go to sequence)
- Protein existenceInferred from homology
- Annotation score3/5
Function
function
Catalyzes the hydrolysis of the adenine ring of phosphoribosyl-AMP.
Catalytic activity
- 1-(5-phospho-beta-D-ribosyl)-5'-AMP + H2O = 1-(5-phospho-beta-D-ribosyl)-5-[(5-phospho-beta-D-ribosylamino)methylideneamino]imidazole-4-carboxamide
Cofactor
Protein has several cofactor binding sites:
Note: Binds 1 Mg2+ ion per subunit.
Note: Binds 1 zinc ion per subunit.
Pathway
Amino-acid biosynthesis; L-histidine biosynthesis; L-histidine from 5-phospho-alpha-D-ribose 1-diphosphate: step 3/9.
Features
Showing features for binding site.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Binding site | 79 | Mg2+ (UniProtKB | ChEBI) | ||||
Sequence: D | ||||||
Binding site | 80 | Zn2+ (UniProtKB | ChEBI); ligand shared between dimeric partners | ||||
Sequence: C | ||||||
Binding site | 81 | Mg2+ (UniProtKB | ChEBI) | ||||
Sequence: D | ||||||
Binding site | 83 | Mg2+ (UniProtKB | ChEBI) | ||||
Sequence: D | ||||||
Binding site | 96 | Zn2+ (UniProtKB | ChEBI); ligand shared between dimeric partners | ||||
Sequence: C | ||||||
Binding site | 103 | Zn2+ (UniProtKB | ChEBI); ligand shared between dimeric partners | ||||
Sequence: C |
GO annotations
Aspect | Term | |
---|---|---|
Cellular Component | cytoplasm | |
Molecular Function | magnesium ion binding | |
Molecular Function | phosphoribosyl-AMP cyclohydrolase activity | |
Molecular Function | zinc ion binding | |
Biological Process | L-histidine biosynthetic process |
Keywords
- Molecular function
- Biological process
- Ligand
Enzyme and pathway databases
Names & Taxonomy
Protein names
- Recommended namePhosphoribosyl-AMP cyclohydrolase
- EC number
- Short namesPRA-CH
Gene names
Organism names
- Taxonomic lineageArchaea > Nitrososphaerota
Accessions
- Primary accessionA0A1Q7F797
Proteomes
Subcellular Location
Interaction
Subunit
Homodimer.
Structure
Family & Domains
Features
Showing features for domain.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Domain | 32-105 | Phosphoribosyl-AMP cyclohydrolase | ||||
Sequence: MLAYANKEALDNTVKTGNAWFWSTSRNKLWMKGEESGNVQPVREILVDCDSDAMLYMVDSDKPACHTGNRSCFH |
Sequence similarities
Belongs to the PRA-CH family.
Family and domain databases
Sequence
- Sequence statusComplete
- Length109
- Mass (Da)12,421
- Last updated2017-04-12 v1
- ChecksumA4DEFE12DCCAC13E