UniProtKB - P86249 (AMPL_MESAU)
Cytosol aminopeptidase
LAP3
Functioni
Cytosolic metallopeptidase that catalyzes the removal of unsubstituted N-terminal hydrophobic amino acids from various peptides. The presence of Zn2+ ions is essential for the peptidase activity, and the association with other cofactors can modulate the substrate spectificity of the enzyme. For instance, in the presence of Mn2+, it displays a specific Cys-Gly hydrolyzing activity of Cys-Gly-S-conjugates. Involved in the metabolism of glutathione and in the degradation of glutathione S-conjugates, which may play a role in the control of the cell redox status.
By similarityCatalytic activityi
- EC:3.4.13.23By similarityThis reaction proceeds in the forwardBy similarity direction.
- This reaction proceeds in the forwardBy similarity direction.
- This reaction proceeds in the forwardBy similarity direction.
- Release of an N-terminal amino acid, Xaa-|-Yaa-, in which Xaa is preferably Leu, but may be other amino acids including Pro although not Arg or Lys, and Yaa may be Pro. Amino acid amides and methyl esters are also readily hydrolyzed, but rates on arylamides are exceedingly low.By similarity EC:3.4.11.1
- Release of N-terminal proline from a peptide.By similarity EC:3.4.11.5
Cofactori
GO - Molecular functioni
- aminopeptidase activity Source: UniProtKB-KW
- carboxypeptidase activity Source: RHEA
- metal ion binding Source: UniProtKB-KW
Keywordsi
Molecular function | Aminopeptidase, Hydrolase, Protease |
Ligand | Magnesium, Manganese, Metal-binding, Zinc |
Names & Taxonomyi
Protein namesi | |
Gene namesi | Name:LAP3By similarity |
Organismi | Mesocricetus auratus (Golden hamster) |
Taxonomic identifieri | 10036 [NCBI] |
Taxonomic lineagei | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Glires › Rodentia › Myomorpha › Muroidea › Cricetidae › Cricetinae › Mesocricetus |
Proteomesi |
|
Subcellular locationi
Cytoplasm and Cytosol
- Cytoplasm By similarity
Other locations
- cytoplasm Source: UniProtKB-SubCell
Keywords - Cellular componenti
CytoplasmPTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000394412 | ‹1 – ›20 | Cytosol aminopeptidaseAdd BLAST | ›20 |
Amino acid modifications
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Modified residuei | 6 | PhosphoserineBy similarity | 1 |
Keywords - PTMi
PhosphoproteinInteractioni
Subunit structurei
Homohexamer.
By similarityStructurei
i Sequence
Sequence statusi: Fragments.
Experimental Info
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Non-terminal residuei | 1 | 1 | ||
Non-adjacent residuesi | 12 – 13 | Curated | 2 | |
Non-terminal residuei | 20 | 1 |
Cross-referencesi
3D structure databases
ModBasei | Search... |
SWISS-MODEL-Workspacei | Submit a new modelling project... |
Family and domain databases
MobiDBi | Search... |
Entry informationi
Entry namei | AMPL_MESAU | |
Accessioni | P86249Primary (citable) accession number: P86249 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | June 15, 2010 |
Last sequence update: | June 15, 2010 | |
Last modified: | February 23, 2022 | |
This is version 22 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Chordata Protein Annotation Program |
Miscellaneousi
Keywords - Technical termi
Reference proteomeDocuments
- Peptidase families
Classification of peptidase families and list of entries - SIMILARITY comments
Index of protein domains and families