LMPD Database

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LMP010769

UniProt Annotations

Entry Information
Gene Nameperoxygenase 2
Protein EntryPXG2_ARATH
UniProt IDQ9FLN9
SpeciesArabidopsis
Comments
Comment typeDescription
Catalytic ActivityRH + ROOH = ROH + ROH. {ECO:0000269|PubMed:16956885}.
CofactorName=Ca(2+); Xref=ChEBI:CHEBI:29108;
CofactorName=heme b; Xref=ChEBI:CHEBI:60344; Evidence={ECO:0000250}; Note=Binds 1 heme b (iron(II)-protoporphyrin IX) group. {ECO:0000250};
DomainThe proline-knot motif (117-126) may be involved in targeting to lipid bodies.
DomainTransmembrane regions are predicted by sequence analysis tools, but these regions probably constitute hydrophobic domains associated to phospholipids.
FunctionCalcium-binding peroxygenase involved in the degradation of storage lipid in oil bodies. May be involved in the interaction between oil bodies and vacuoles during seed germination and in the oxylipin signaling pathways and plant defense responses. Can catalyze sulfoxidation of thiobenzamide, hydroxylation of aniline and epoxidation of oleic acid. {ECO:0000269|PubMed:15678336}.
InductionDown-regulated by light and upon germination. Not induced by abscisic acid or osmotic stress. {ECO:0000269|PubMed:11197322, ECO:0000269|PubMed:15678336}.
SimilarityBelongs to the caleosin family. {ECO:0000305}.
SimilarityContains 1 EF-hand domain. {ECO:0000305}.
Subcellular LocationLipid droplet {ECO:0000269|PubMed:21751352}.
SubunitHomodimer. {ECO:0000250}.
Tissue SpecificityExpressed in roots, cotyledons, hypocotyls, leaves, shoots, flowers, siliques and dry seeds. {ECO:0000269|PubMed:11197322, ECO:0000269|PubMed:15678336}.