LMPD Database

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LMP011418

UniProt Annotations

Entry Information
Gene NameType I inositol-1,4,5-trisphosphate 5-phosphatase CVP2
Protein EntryIP5P3_ARATH
UniProt IDQ9LR47
SpeciesArabidopsis
Comments
Comment typeDescription
Alternative ProductsEvent=Alternative splicing; Named isoforms=2; Name=1; IsoId=Q9LR47-1; Sequence=Displayed; Name=2; IsoId=Q9LR47-2; Sequence=VSP_037992, VSP_037993; Note=May be due to a competing donor splice site. No experimental confirmation available.;
Catalytic Activity1D-myo-inositol 1,3,4,5-tetrakisphosphate + H(2)O = 1D-myo-inositol 1,3,4-trisphosphate + phosphate.
Catalytic ActivityD-myo-inositol 1,4,5-trisphosphate + H(2)O = myo-inositol 1,4-bisphosphate + phosphate.
Developmental StageDuring early stages of embryogenesis, broadly expressed throughout globular and torpedo stages. At late torpedo stage, strongly expressed in developing vascular cells and weakly expressed in surrounding cells. By the walking-stick stage, restricted to incipient vascular cells of the apical loop, the midvein of the cotyledon and the root vasculature. In emerging leaves, strongly expressed in procambium and weakly expressed in areole cells. Limited to developing vascular cells in later stage of leaf development. In roots, expressed in procambium of the elongating zone and in immature vascular cells of the root differentiation zone. During inflorescence development, broadly expressed in young floral buds, and gradually restricted to procambium of cauline leaves, sepals, petals, gynoecia and anthers. {ECO:0000269|PubMed:15100402}.
FunctionRequired for the patterning of procambium and during the differentiation of vascular tissues. Acts before the acquisition of preprocambial identity. Seems to be also involved in the abscisic acid (ABA) signaling pathway. {ECO:0000269|PubMed:10559439, ECO:0000269|PubMed:15100402}.
Sequence CautionSequence=AAF79735.1; Type=Erroneous gene model prediction; Evidence={ECO:0000305}; Sequence=BX816898; Type=Miscellaneous discrepancy; Note=Sequencing errors.; Evidence={ECO:0000305};
SimilarityBelongs to the inositol 1,4,5-trisphosphate 5- phosphatase type I family. {ECO:0000305}.
Tissue SpecificityBroadly expressed in emerging organs. Mostly localized in procambium of growing organs. Restricted to vascular differentiating cells of young organs. {ECO:0000269|PubMed:15100402}.