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Protein

Peroxidase 45

Gene

PER45

Organism
Arabidopsis thaliana (Mouse-ear cress)
Status
Reviewed-Annotation score: Annotation score: 4 out of 5-Experimental evidence at protein leveli

Functioni

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 activityi

2 phenolic donor + H2O2 = 2 phenoxyl radical of the donor + 2 H2O.

Cofactori

Protein has several cofactor binding sites:
  • heme bPROSITE-ProRule annotationNote: Binds 1 heme b (iron(II)-protoporphyrin IX) group per subunit.PROSITE-ProRule annotation
  • Ca2+PROSITE-ProRule annotationNote: Binds 2 calcium ions per subunit.PROSITE-ProRule annotation

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Sitei63Transition state stabilizerPROSITE-ProRule annotation1
Active sitei67Proton acceptorPROSITE-ProRule annotation1
Metal bindingi68Calcium 1PROSITE-ProRule annotation1
Metal bindingi71Calcium 1; via carbonyl oxygenPROSITE-ProRule annotation1
Metal bindingi73Calcium 1; via carbonyl oxygenPROSITE-ProRule annotation1
Metal bindingi75Calcium 1PROSITE-ProRule annotation1
Metal bindingi77Calcium 1PROSITE-ProRule annotation1
Binding sitei163Substrate; via carbonyl oxygenPROSITE-ProRule annotation1
Metal bindingi193Iron (heme axial ligand)PROSITE-ProRule annotation1
Metal bindingi194Calcium 2PROSITE-ProRule annotation1
Metal bindingi245Calcium 2PROSITE-ProRule annotation1
Metal bindingi248Calcium 2PROSITE-ProRule annotation1
Metal bindingi253Calcium 2PROSITE-ProRule annotation1

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionOxidoreductase, Peroxidase
Biological processHydrogen peroxide
LigandHeme, Iron, Metal-binding

Enzyme and pathway databases

BioCyciARA:AT4G30170-MONOMER.

Protein family/group databases

PeroxiBasei211. AtPrx45.

Names & Taxonomyi

Protein namesi
Recommended name:
Peroxidase 45 (EC:1.11.1.7)
Short name:
Atperox P45
Alternative name(s):
ATP8a
Gene namesi
Name:PER45
Synonyms:P45
Ordered Locus Names:At4g30170
ORF Names:F9N11.20
OrganismiArabidopsis thaliana (Mouse-ear cress)
Taxonomic identifieri3702 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaerosidsmalvidsBrassicalesBrassicaceaeCamelineaeArabidopsis
Proteomesi
  • UP000006548 Componenti: Chromosome 4

Organism-specific databases

AraportiAT4G30170.
TAIRilocus:2128921. AT4G30170.

Subcellular locationi

  • Secreted PROSITE-ProRule annotation

GO - Cellular componenti

Keywords - Cellular componenti

Secreted

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Signal peptidei1 – 25Sequence analysisAdd BLAST25
ChainiPRO_000002371126 – 325Peroxidase 45Add BLAST300

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Disulfide bondi36 ↔ 115PROSITE-ProRule annotation
Disulfide bondi69 ↔ 74PROSITE-ProRule annotation
Disulfide bondi121 ↔ 321PROSITE-ProRule annotation
Disulfide bondi200 ↔ 232PROSITE-ProRule annotation

Keywords - PTMi

Disulfide bond

Proteomic databases

PaxDbiQ96522.
PRIDEiQ96522.

Expressioni

Tissue specificityi

Slightly expressed in roots.1 Publication

Inductioni

Up-regulated transiently by a cold treatment. Induced by methyl jasmonate, a plant defense-related signaling molecule.2 Publications

Gene expression databases

ExpressionAtlasiQ96522. baseline and differential.
GenevisibleiQ96522. AT.

Interactioni

Protein-protein interaction databases

STRINGi3702.AT4G30170.1.

Structurei

3D structure databases

ProteinModelPortaliQ96522.
SMRiQ96522.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the peroxidase family. Classical plant (class III) peroxidase subfamily.PROSITE-ProRule annotation

Keywords - Domaini

Signal

Phylogenomic databases

eggNOGiENOG410IJYG. Eukaryota.
ENOG4111S7R. LUCA.
HOGENOMiHOG000237556.
InParanoidiQ96522.
KOiK00430.
OMAiVRIAINM.
OrthoDBiEOG09360FB9.
PhylomeDBiQ96522.

Family and domain databases

CDDicd00693. secretory_peroxidase. 1 hit.
InterProiView protein in InterPro
IPR010255. Haem_peroxidase.
IPR002016. Haem_peroxidase_pln/fun/bac.
IPR000823. Peroxidase_pln.
IPR019794. Peroxidases_AS.
IPR019793. Peroxidases_heam-ligand_BS.
IPR033905. Secretory_peroxidase.
PfamiView protein in Pfam
PF00141. peroxidase. 1 hit.
PRINTSiPR00458. PEROXIDASE.
PR00461. PLPEROXIDASE.
SUPFAMiSSF48113. SSF48113. 1 hit.
PROSITEiView protein in PROSITE
PS00435. PEROXIDASE_1. 1 hit.
PS00436. PEROXIDASE_2. 1 hit.
PS50873. PEROXIDASE_4. 1 hit.

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

Q96522-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MEKNTSQTIF SNFFLLLLLS SCVSAQLRTG FYQNSCPNVE TIVRNAVRQK
60 70 80 90 100
FQQTFVTAPA TLRLFFHDCF VRGCDASIMI ASPSERDHPD DMSLAGDGFD
110 120 130 140 150
TVVKAKQAVD SNPNCRNKVS CADILALATR EVVVLTGGPS YPVELGRRDG
160 170 180 190 200
RISTKASVQS QLPQPEFNLN QLNGMFSRHG LSQTDMIALS GAHTIGFAHC
210 220 230 240 250
GKMSKRIYNF SPTTRIDPSI NRGYVVQLKQ MCPIGVDVRI AINMDPTSPR
260 270 280 290 300
TFDNAYFKNL QQGKGLFTSD QILFTDQRSR STVNSFANSE GAFRQAFITA
310 320
ITKLGRVGVL TGNAGEIRRD CSRVN
Length:325
Mass (Da):35,829
Last modified:February 1, 1997 - v1
Checksum:iF852C14BC2E846CF
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X98855 mRNA. Translation: CAA67361.1.
AL109796 Genomic DNA. Translation: CAB52461.1.
AL161576 Genomic DNA. Translation: CAB81010.1.
CP002687 Genomic DNA. Translation: AEE85729.1.
AF370284 mRNA. Translation: AAK44099.1.
AY063051 mRNA. Translation: AAL34225.1.
AY085450 mRNA. Translation: AAM62676.1.
PIRiT14077.
RefSeqiNP_194746.1. NM_119163.3.
UniGeneiAt.24710.
At.67068.

Genome annotation databases

EnsemblPlantsiAT4G30170.1; AT4G30170.1; AT4G30170.
GeneIDi829140.
GrameneiAT4G30170.1; AT4G30170.1; AT4G30170.
KEGGiath:AT4G30170.

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.

Entry informationi

Entry nameiPER45_ARATH
AccessioniPrimary (citable) accession number: Q96522
Entry historyiIntegrated into UniProtKB/Swiss-Prot: December 6, 2002
Last sequence update: February 1, 1997
Last modified: June 7, 2017
This is version 135 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. Arabidopsis thaliana
    Arabidopsis thaliana: entries and gene names
  2. SIMILARITY comments
    Index of protein domains and families