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Literature summary for 2.7.1.159 extracted from

  • Tang, Y.; Tan, S.; Xue, H.
    Arabidopsis inositol 1,3,4-trisphosphate 5/6 kinase 2 is required for seed coat development (2013), Acta Biochim. Biophys. Sin. (Shanghai), 45, 549-560.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
gene ITPK2, expression analysis of wild-type and mutant enzymes by quantitative real-time PCR analysis Arabidopsis thaliana

Protein Variants

Protein Variants Comment Organism
additional information functional analysis of itpk2-1 mutant (SAIL_25_H09), phenotype, overview Arabidopsis thaliana

Localization

Localization Comment Organism GeneOntology No. Textmining
cell wall
-
Arabidopsis thaliana 5618
-

Metals/Ions

Metals/Ions Comment Organism Structure
Mg2+ required Arabidopsis thaliana

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
ATP + 1D-myo-inositol 1,3,4-trisphosphate Arabidopsis thaliana
-
ADP + 1D-myo-inositol 1,3,4,5-tetrakisphosphate
-
?
ATP + 1D-myo-inositol 1,3,4-trisphosphate Arabidopsis thaliana
-
ADP + 1D-myo-inositol 1,3,4,6-tetrakisphosphate
-
?

Organism

Organism UniProt Comment Textmining
Arabidopsis thaliana O81893 gene ITPK2
-

Source Tissue

Source Tissue Comment Organism Textmining
flower very low expression level Arabidopsis thaliana
-
leaf very low expression level Arabidopsis thaliana
-
additional information expression pattern of isozyme ITPK2, no or very poor expression in stem Arabidopsis thaliana
-
root
-
Arabidopsis thaliana
-
seed
-
Arabidopsis thaliana
-
seedling very low expression level Arabidopsis thaliana
-
silique very low expression level Arabidopsis thaliana
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ATP + 1D-myo-inositol 1,3,4-trisphosphate
-
Arabidopsis thaliana ADP + 1D-myo-inositol 1,3,4,5-tetrakisphosphate
-
?
ATP + 1D-myo-inositol 1,3,4-trisphosphate
-
Arabidopsis thaliana ADP + 1D-myo-inositol 1,3,4,6-tetrakisphosphate
-
?
additional information the enzyme also performs the reaction of EC 2.7.1.134, phosphorylation of position 1 of 1D-myo-inositol 3,4,5,6-tetrakisphosphate Arabidopsis thaliana ?
-
?

Synonyms

Synonyms Comment Organism
ITPK2
-
Arabidopsis thaliana

Cofactor

Cofactor Comment Organism Structure
ATP
-
Arabidopsis thaliana

General Information

General Information Comment Organism
malfunction the epidermis structure of seed coat is irregularly formed in seeds of itpk2-1 mutant, resulting in the increased permeability of seed coat to tetrazolium salts. The cell wall shows a dramatic decrease in composition of suberin and cutin, which relate to the permeability of seed coat and the formation of which is accompanied with seed coat development. ITPK2 deficiency results in the distorted seed coat and crumpled columellas. Seed coat of itpk2-1 mutant presents high permeability to 2,3,5-triphenyltetrazolium and has less mucilage Arabidopsis thaliana
physiological function enzyme ITPK2 plays an essential role in seed coat development and lipid polyester barrier formation Arabidopsis thaliana