Q7XZP5 (APX5_ARATH) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 1, 2013.
Version 68.
History...
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: L-ascorbate peroxidase 5, peroxisomal Short name=AtAPx04 EC=1.11.1.11 | ||||||
| Gene names |
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| Organism | Arabidopsis thaliana (Mouse-ear cress) [Reference proteome] | ||||||
| Taxonomic identifier | 3702 [NCBI] | ||||||
| Taxonomic lineage | Eukaryota › Viridiplantae › Streptophyta › Embryophyta › Tracheophyta › Spermatophyta › Magnoliophyta › eudicotyledons › core eudicotyledons › rosids › malvids › Brassicales › Brassicaceae › Camelineae › Arabidopsis![]() |
Protein attributes
| Sequence length | 279 AA. |
| Sequence status | Complete. |
| Sequence processing | The displayed sequence is further processed into a mature form. |
| Protein existence | Evidence at transcript level |
General annotation (Comments)
| Function | Plays a key role in hydrogen peroxide removal By similarity. |
| Catalytic activity | 2 L-ascorbate + H2O2 + 2 H+ = L-ascorbate + L-dehydroascorbate + 2 H2O. |
| Cofactor | Binds 1 heme B (iron-protoporphyrin IX) group per subunit. Binds 1 potassium or calcium ion per subunit By similarity. |
| Subcellular location | Peroxisome membrane; Single-pass membrane protein Potential. |
| Sequence similarities | Belongs to the peroxidase family. Ascorbate peroxidase subfamily. |
Ontologies
| Keywords | |
|---|---|
| Biological process | Hydrogen peroxide |
| Cellular component | Membrane Peroxisome |
| Domain | Transit peptide Transmembrane Transmembrane helix |
| Ligand | Calcium Heme Iron Metal-binding Potassium |
| Molecular function | Oxidoreductase Peroxidase |
| Technical term | Complete proteome Reference proteome |
| Gene Ontology (GO) | |
| Biological_process | hydrogen peroxide catabolic process Inferred from electronic annotation. Source: UniProtKB-KW |
| Cellular_component | integral to membrane Inferred from electronic annotation. Source: UniProtKB-KW peroxisomal membraneInferred from electronic annotation. Source: UniProtKB-SubCell |
| Molecular_function | L-ascorbate peroxidase activity Inferred from electronic annotation. Source: EC heme bindingInferred from electronic annotation. Source: InterPro metal ion bindingInferred from electronic annotation. Source: UniProtKB-KW |
| Complete GO annotation... | |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Transit peptide | 1 – ? | Peroxisome Potential | |||||||
| Chain | ? – 279 | L-ascorbate peroxidase 5, peroxisomal | PRO_0000261324 | ||||||
Regions | |||||||||
| Transmembrane | 251 – 271 | 21 | Helical; Potential | ||||||
Sites | |||||||||
| Active site | 39 | 1 | Proton acceptor By similarity | ||||||
| Metal binding | 158 | 1 | Iron (heme axial ligand) By similarity | ||||||
| Metal binding | 159 | 1 | Potassium or calcium By similarity | ||||||
| Metal binding | 175 | 1 | Potassium or calcium By similarity | ||||||
| Metal binding | 182 | 1 | Potassium or calcium By similarity | ||||||
| Site | 35 | 1 | Transition state stabilizer By similarity | ||||||
Sequences
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References
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | AL022373 Genomic DNA. Translation: CAA18491.1. AL031986 Genomic DNA. Translation: CAA21483.1. AL161588 Genomic DNA. Translation: CAB81506.1. CP002687 Genomic DNA. Translation: AEE86596.1. AK119023 mRNA. Translation: BAC43599.1. BT006053 mRNA. Translation: AAP04038.1. AF441714 mRNA. Translation: AAP72144.1. |
| IPI | IPI00528635. |
| PIR | T04707. |
| RefSeq | NP_195321.1. NM_119763.2. |
| UniGene | At.31367. |
3D structure databases | |
| HSSP | HSSP built from PDB template 1APX based on UniProtKB P48534. |
| ProteinModelPortal | Q7XZP5. |
| SMR | Q7XZP5. Positions 5-242. |
| ModBase | Search... |
Protein family/group databases | |
| PeroxiBase | 1887. AtAPx04. |
Proteomic databases | |
| PaxDb | Q7XZP5. |
| PRIDE | Q7XZP5. |
Protocols and materials databases | |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| EnsemblPlants | AT4G35970.1; AT4G35970.1; AT4G35970. |
| GeneID | 829751. |
| KEGG | ath:AT4G35970. |
Organism-specific databases | |
| GeneFarm | 1983. 146. |
| TAIR | At4g35970. |
Phylogenomic databases | |
| eggNOG | COG0376. |
| HOGENOM | HOG000189824. |
| InParanoid | Q7XZP5. |
| KO | K00434. |
| OMA | HALGKTH. |
| PhylomeDB | Q7XZP5. |
| ProtClustDB | CLSN2915793. |
Gene expression databases | |
| Genevestigator | Q7XZP5. |
Family and domain databases | |
| InterPro | IPR002207. Asc_peroxidase. IPR010255. Haem_peroxidase. IPR002016. Haem_peroxidase_pln/fun/bac. IPR019794. Peroxidases_AS. IPR019793. Peroxidases_heam-ligand_BS. [Graphical view] |
| Pfam | PF00141. peroxidase. 1 hit. [Graphical view] |
| PRINTS | PR00459. ASPEROXIDASE. PR00458. PEROXIDASE. |
| SUPFAM | SSF48113. Peroxidase_super. 1 hit. |
| PROSITE | PS00435. PEROXIDASE_1. 1 hit. PS00436. PEROXIDASE_2. 1 hit. PS50873. PEROXIDASE_4. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Entry information
| Entry name | APX5_ARATH | ||||||||
| Accession | Primary (citable) accession number: Q7XZP5 Secondary accession number(s): O65634 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Plant Protein Annotation Program | ||||||||
Relevant documents
| Arabidopsis thaliana Arabidopsis thaliana: entries and gene names |
| SIMILARITY comments Index of protein domains and families |

Clusters with
