Detail Information for IndEnz0018000061
IED ID IndEnz0018000061
Enzyme Type ID peroxidase000061
Protein Name Alkyl hydroperoxide reductase C
EC 1.11.1.26
Peroxiredoxin
Thioredoxin peroxidase
Gene Name ahpC AXY_22000
Organism Amphibacillus xylanus (strain ATCC 51415 / DSM 6626 / JCM 7361 / LMG 17667 / NBRC 15112 / Ep01)
Taxonomic Lineage cellular organisms Bacteria Terrabacteria group Firmicutes Bacilli Bacillales Bacillaceae Amphibacillus Amphibacillus xylanus Amphibacillus xylanus (strain ATCC 51415 / DSM 6626 / JCM 7361 / LMG 17667 / NBRC 15112 / Ep01)
Enzyme Sequence MSLIGTEVQPFRAQAFQSGKDFFEVTEADLKGKWSIVVFYPADFSFVCPTELEDVQKEYAELKKLGVEVYSVSTDTHFVHKAWHENSPAVGSIEYIMIGDPSQTISRQFDVLNEETGLADRGTFIIDPDGVIQAIEINADGIGRDASTLINKVKAAQYVRENPGEVCPAKWEEGGETLKPSLDIVGKI
Enzyme Length 188
Uniprot Accession Number K0J4Q8
Absorption
Active Site ACT_SITE 48; /note=Cysteine sulfenic acid (-SOH) intermediate; /evidence=ECO:0000305|PubMed:15770647
Activity Regulation
Binding Site
Calcium Binding
catalytic Activity CATALYTIC ACTIVITY: Reaction=a hydroperoxide + H(+) + NADH = an alcohol + H2O + NAD(+); Xref=Rhea:RHEA:62628, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:30879, ChEBI:CHEBI:35924, ChEBI:CHEBI:57540, ChEBI:CHEBI:57945; EC=1.11.1.26; Evidence={ECO:0000269|PubMed:10960086};
DNA Binding
EC Number 1.11.1.26
Enzyme Function FUNCTION: Thiol-specific peroxidase that catalyzes the reduction of hydrogen peroxide and organic hydroperoxides to water and alcohols, respectively. Plays a role in cell protection against oxidative stress by detoxifying peroxides. {ECO:0000269|PubMed:10960086}.
Temperature Dependency
PH Dependency
Pathway
nucleotide Binding
Features Active site (1); Beta strand (8); Chain (1); Disulfide bond (2); Domain (1); Helix (5); Initiator methionine (1); Turn (2)
Keywords 3D-structure;Antioxidant;Cytoplasm;Direct protein sequencing;Disulfide bond;Oxidoreductase;Peroxidase;Redox-active center;Reference proteome
Interact With
Induction INDUCTION: Induced significantly under aerobic conditions. {ECO:0000269|PubMed:10960086}.
Subcellular Location SUBCELLULAR LOCATION: Cytoplasm {ECO:0000250|UniProtKB:P0AE08}.
Modified Residue
Post Translational Modification
Signal Peptide
Structure 3D X-ray crystallography (1)
Cross Reference PDB 1WE0;
Mapped Pubmed ID 10423523;
Motif
Gene Encoded By
Mass 20,774
Kinetics BIOPHYSICOCHEMICAL PROPERTIES: Kinetic parameters: KM=8.9 uM for H(2)O(2) {ECO:0000269|PubMed:10960086}; KM=10 uM for cumene hydroperoxide {ECO:0000269|PubMed:10960086};
Metal Binding
Rhea ID RHEA:62628
Cross Reference Brenda