Q93V93 · PER44_ARATH

Function

function

Removal of H2O2, oxidation of toxic reductants, biosynthesis and degradation of lignin, suberization, auxin catabolism, response to environmental stresses such as wounding, pathogen attack and oxidative stress. These functions might be dependent on each isozyme/isoform in each plant tissue.

Miscellaneous

There are 73 peroxidase genes in A.thaliana.

Catalytic activity

Cofactor

Protein has several cofactor binding sites:
heme b (UniProtKB | Rhea| CHEBI:60344 )

Note: Binds 1 heme b (iron(II)-protoporphyrin IX) group per subunit.
Ca2+ (UniProtKB | Rhea| CHEBI:29108 )

Note: Binds 2 calcium ions per subunit.

Features

Showing features for site, active site, binding site.

TypeIDPosition(s)Description
Site58Transition state stabilizer
Active site62Proton acceptor
Binding site63Ca2+ 1 (UniProtKB | ChEBI)
Binding site66Ca2+ 1 (UniProtKB | ChEBI)
Binding site68Ca2+ 1 (UniProtKB | ChEBI)
Binding site70Ca2+ 1 (UniProtKB | ChEBI)
Binding site72Ca2+ 1 (UniProtKB | ChEBI)
Binding site156substrate
Binding site187Fe (UniProtKB | ChEBI) of heme b (UniProtKB | ChEBI); axial binding residue
Binding site188Ca2+ 2 (UniProtKB | ChEBI)
Binding site229Ca2+ 2 (UniProtKB | ChEBI)
Binding site232Ca2+ 2 (UniProtKB | ChEBI)
Binding site237Ca2+ 2 (UniProtKB | ChEBI)

GO annotations

AspectTerm
Cellular Componentextracellular region
Molecular Functionheme binding
Molecular Functionlactoperoxidase activity
Molecular Functionmetal ion binding
Biological Processhydrogen peroxide catabolic process
Biological Processresponse to oxidative stress

Keywords

Enzyme and pathway databases

Protein family/group databases

Names & Taxonomy

Protein names

  • Recommended name
    Peroxidase 44
  • EC number
  • Short names
    Atperox P44
  • Alternative names
    • ATP35

Gene names

    • Name
      PER44
    • Synonyms
      P44
    • ORF names
      F20B18.120
    • Ordered locus names
      At4g26010

Organism names

  • Taxonomic identifier
  • Strain
    • cv. Columbia
  • Taxonomic lineage
    Eukaryota > Viridiplantae > Streptophyta > Embryophyta > Tracheophyta > Spermatophyta > Magnoliopsida > eudicotyledons > Gunneridae > Pentapetalae > rosids > malvids > Brassicales > Brassicaceae > Camelineae > Arabidopsis

Accessions

  • Primary accession
    Q93V93
  • Secondary accessions
    • Q9SZH5

Proteomes

Organism-specific databases

Genome annotation databases

Subcellular Location

Keywords

PTM/Processing

Features

Showing features for signal, chain, disulfide bond.

TypeIDPosition(s)Description
Signal1-20
ChainPRO_000002371021-310Peroxidase 44
Disulfide bond31↔110
Disulfide bond64↔69
Disulfide bond116↔305
Disulfide bond194↔218

Keywords

Proteomic databases

Expression

Gene expression databases

Interaction

Protein-protein interaction databases

Structure

Family & Domains

Sequence similarities

Belongs to the peroxidase family. Classical plant (class III) peroxidase subfamily.

Keywords

Phylogenomic databases

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Sequence processing
    The displayed sequence is further processed into a mature form.
  • Length
    310
  • Mass (Da)
    33,806
  • Last updated
    2001-12-01 v1
  • Checksum
    E14CEB2BA47B5550
MRSITALFFLFCFLAPSALAQLRTGFYSRSCPRAESIVASVVANRFRSDKSITAAFLRMQFHDCFVRGCDASLLIDPRPGRPSEKSTGPNASVRGYEIIDEAKRQLEAACPRTVSCADIVTLATRDSVALAGGPRFSVPTGRRDGLRSNPNDVNLPGPTIPVSASIQLFAAQGMNTNDMVTLIGGGHSVGVAHCSLFQDRLSDRAMEPSLKSSLRRKCSSPNDPTTFLDQKTSFTVDNAIYGEIRRQRGILRIDQNLGLDRSTSGIVSGYASSNTLFRKRFAEALVKMGTIKVLTGRSGEIRRNCRVFNN

Computationally mapped potential isoform sequences

There is 1 potential isoform mapped to this entry

View all
EntryEntry nameGene nameLength
A0A1P8B428A0A1P8B428_ARATHAt4g26010338

Sequence caution

The sequence CAB39666.1 differs from that shown. Reason: Erroneous gene model prediction
The sequence CAB79456.1 differs from that shown. Reason: Erroneous gene model prediction

Keywords

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
AF452386
EMBL· GenBank· DDBJ
AAL40850.1
EMBL· GenBank· DDBJ
mRNA
AL049483
EMBL· GenBank· DDBJ
CAB39666.1
EMBL· GenBank· DDBJ
Genomic DNA Sequence problems.
AL161564
EMBL· GenBank· DDBJ
CAB79456.1
EMBL· GenBank· DDBJ
Genomic DNA Sequence problems.
CP002687
EMBL· GenBank· DDBJ
AEE85144.1
EMBL· GenBank· DDBJ
Genomic DNA
AF412066
EMBL· GenBank· DDBJ
AAL06519.1
EMBL· GenBank· DDBJ
mRNA
AF428430
EMBL· GenBank· DDBJ
AAL16199.1
EMBL· GenBank· DDBJ
mRNA
AY090260
EMBL· GenBank· DDBJ
AAL90921.1
EMBL· GenBank· DDBJ
mRNA

Genome annotation databases

Similar Proteins

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