| IED ID | IndEnz0018001563 |
| Enzyme Type ID | peroxidase001563 |
| Protein Name |
Peroxiredoxin Q, chloroplastic EC 1.11.1.24 Thioredoxin peroxidase Thioredoxin-dependent peroxiredoxin Q |
| Gene Name | PRXQ |
| Organism | Populus jackii (Balm of Gilead) (Populus deltoides x Populus balsamifera) |
| Taxonomic Lineage | cellular organisms Eukaryota Viridiplantae Streptophyta Streptophytina Embryophyta Tracheophyta Euphyllophyta Spermatophyta Magnoliopsida Mesangiospermae eudicotyledons Gunneridae Pentapetalae rosids fabids Malpighiales Salicaceae Saliceae Populus (poplars) Populus jackii (Balm of Gilead) (Populus deltoides x Populus balsamifera) |
| Enzyme Sequence | MASISLPKHSLPSLLPTLKPITSSSQNLPILSKSSQSQFYGLKFSHSTSLSIPSSSSVKNTIFAKVNKGQAPPSFTLKDQDGKTLSLSKFKGKPVVVYFYPADETPGCTKQACAFRDSYEKFKKAGAEVVGISGDDPSSHKAFAKKYRLPFTLLSDEGNKIRKEWGVPADLFGTLPGRQTYVLDKKGVVQLIYNNQFQPEKHIDETLKLLQSL |
| Enzyme Length | 213 |
| Uniprot Accession Number | Q6QPJ6 |
| Absorption | |
| Active Site | ACT_SITE 108; /note=Cysteine sulfenic acid (-SOH) intermediate; /evidence=ECO:0000250|UniProtKB:P0AE52 |
| Activity Regulation | |
| Binding Site | |
| Calcium Binding | |
| catalytic Activity | CATALYTIC ACTIVITY: Reaction=[thioredoxin]-dithiol + a hydroperoxide = [thioredoxin]-disulfide + an alcohol + H2O; Xref=Rhea:RHEA:62620, Rhea:RHEA-COMP:10698, Rhea:RHEA-COMP:10700, ChEBI:CHEBI:15377, ChEBI:CHEBI:29950, ChEBI:CHEBI:30879, ChEBI:CHEBI:35924, ChEBI:CHEBI:50058; EC=1.11.1.24; Evidence={ECO:0000250|UniProtKB:Q9LU86}; |
| DNA Binding | |
| EC Number | 1.11.1.24 |
| 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 (By similarity). Involved in the plant defense against pathogen (PubMed:14976238). {ECO:0000250|UniProtKB:Q9LU86, ECO:0000269|PubMed:14976238}. |
| Temperature Dependency | |
| PH Dependency | |
| Pathway | |
| nucleotide Binding | |
| Features | Active site (1); Chain (1); Disulfide bond (1); Domain (1); Transit peptide (1) |
| Keywords | Antioxidant;Chloroplast;Disulfide bond;Oxidoreductase;Peroxidase;Plastid;Redox-active center;Thylakoid;Transit peptide |
| Interact With | |
| Induction | INDUCTION: By pathogen attack. {ECO:0000269|PubMed:14976238}. |
| Subcellular Location | SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid lumen {ECO:0000250|UniProtKB:Q9LU86}. |
| Modified Residue | |
| Post Translational Modification | |
| Signal Peptide | |
| Structure 3D | |
| Cross Reference PDB | - |
| Mapped Pubmed ID | - |
| Motif | |
| Gene Encoded By | |
| Mass | 23,417 |
| Kinetics | |
| Metal Binding | |
| Rhea ID | RHEA:62620 |
| Cross Reference Brenda |