A0A655BXU5 · A0A655BXU5_SALET
- ProteinPutrescine aminotransferase
- Geneoat
- StatusUniProtKB unreviewed (TrEMBL)
- Amino acids468 (go to sequence)
- Protein existenceInferred from homology
- Annotation score4/5
Function
function
Catalyzes the aminotransferase reaction from putrescine to 2-oxoglutarate, leading to glutamate and 4-aminobutanal, which spontaneously cyclizes to form 1-pyrroline. This is the first step in one of two pathways for putrescine degradation, where putrescine is converted into 4-aminobutanoate (gamma-aminobutyrate or GABA) via 4-aminobutanal. Also functions as a cadaverine transaminase in a a L-lysine degradation pathway to succinate that proceeds via cadaverine, glutarate and L-2-hydroxyglutarate.
Catalytic activity
- an alkane-alpha,omega-diamine + 2-oxoglutarate = an omega-aminoaldehyde + L-glutamate
an alkane-α,ω-diamine RHEA-COMP:9766 + CHEBI:16810 = an ω-aminoaldehyde RHEA-COMP:12750 + CHEBI:29985 - cadaverine + 2-oxoglutarate = 5-aminopentanal + L-glutamate
Cofactor
Pathway
Amine and polyamine degradation; putrescine degradation; 4-aminobutanal from putrescine (transaminase route): step 1/1.
Amino-acid degradation.
Features
Showing features for binding site.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
Binding site | 159-160 | pyridoxal 5'-phosphate (UniProtKB | ChEBI); ligand shared between dimeric partners; in other chain | |||
Binding site | 283 | pyridoxal 5'-phosphate (UniProtKB | ChEBI); ligand shared between dimeric partners; in other chain | |||
Binding site | 341 | pyridoxal 5'-phosphate (UniProtKB | ChEBI); ligand shared between dimeric partners | |||
GO annotations
Aspect | Term | |
---|---|---|
Molecular Function | diamine transaminase activity | |
Molecular Function | identical protein binding | |
Molecular Function | putrescine--2-oxoglutarate transaminase activity | |
Molecular Function | pyridoxal phosphate binding | |
Biological Process | L-lysine catabolic process | |
Biological Process | putrescine catabolic process |
Keywords
- Molecular function
- Ligand
Enzyme and pathway databases
Names & Taxonomy
Protein names
- Recommended namePutrescine aminotransferase
- EC number
- Short namesPAT ; PATase
- Alternative names
Gene names
Organism names
- Strains
- Taxonomic lineageBacteria > Pseudomonadota > Gammaproteobacteria > Enterobacterales > Enterobacteriaceae > Salmonella
Accessions
- Primary accessionA0A655BXU5
Proteomes
PTM/Processing
Features
Showing features for modified residue.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
Modified residue | 309 | N6-(pyridoxal phosphate)lysine | |||
Interaction
Subunit
Homodimer.
Structure
Sequence
- Sequence statusComplete
- Length468
- Mass (Da)50,681
- Last updated2020-04-22 v1
- Checksum8505DF001B32A5C8
Sequence databases
Nucleotide Sequence | Protein Sequence | Molecule Type | Status | |
---|---|---|---|---|
CQPD01000009 EMBL· GenBank· DDBJ | CNT85510.1 EMBL· GenBank· DDBJ | Genomic DNA | ||
CQPA01000014 EMBL· GenBank· DDBJ | CNU20511.1 EMBL· GenBank· DDBJ | Genomic DNA |