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Literature summary for 2.7.1.159 extracted from

  • Marathe, A.; Krishnan, V.; Vinutha, T.; Dahuja, A.; Jolly, M.; Sachdev, A.
    Exploring the role of inositol 1,3,4-trisphosphate 5/6 kinase-2 (GmITPK2) as a dehydration and salinity stress regulator in Glycine max (L.) Merr. through heterologous expression in E. coli (2018), Plant Physiol. Biochem., 123, 331-341 .
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
gene Itpk2, genetic organization and gene structure, isozyme sequence comparisons, in-silico analysis of the promoter region of ITPKs, the promoter region of GmITPK2 shows the presence of two MYB binding elements for drought inducibility and one for abscisic acid response, quantitative RT-PCR enzyme expression analysis. The His5-tagged GmITPK2-expressing recombinant Escherichia coli strain BL21(DE3) cells show tolerance to drought and salinity and thus demonstrate the functional redundancy of the gene across taxa Glycine max

Localization

Localization Comment Organism GeneOntology No. Textmining
cytosol
-
Glycine max 5829
-

Metals/Ions

Metals/Ions Comment Organism Structure
Mg2+ required Glycine max

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 Glycine max
-
ADP + 1D-myo-inositol 1,3,4,5-tetrakisphosphate
-
?
ATP + 1D-myo-inositol 1,3,4-trisphosphate Glycine max
-
ADP + 1D-myo-inositol 1,3,4,6-tetrakisphosphate
-
?

Organism

Organism UniProt Comment Textmining
Glycine max A7X665 cv. Pusa-16, grown in the fields of Division of Genetics, I.A.R.I, New Delhi
-

Purification (Commentary)

Purification (Comment) Organism
recombinant His5-tagged GmITPK2 from Escherichia coli strain BL21(DE3) by nickel affinity chromatography Glycine max

Source Tissue

Source Tissue Comment Organism Textmining
seed
-
Glycine max
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ATP + 1D-myo-inositol 1,3,4-trisphosphate
-
Glycine max ADP + 1D-myo-inositol 1,3,4,5-tetrakisphosphate
-
?
ATP + 1D-myo-inositol 1,3,4-trisphosphate
-
Glycine max ADP + 1D-myo-inositol 1,3,4,6-tetrakisphosphate
-
?

Subunits

Subunits Comment Organism
? x * 35000, recombinant His5-tagged enzyme, SDS-PAGE Glycine max

Synonyms

Synonyms Comment Organism
GmItpk2
-
Glycine max
inositol 1,3,4-trisphosphate 5/6 kinase-2
-
Glycine max

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
37
-
in vivo assay at Glycine max

Cofactor

Cofactor Comment Organism Structure
ATP
-
Glycine max

Expression

Organism Comment Expression
Glycine max expression profiling of the GmITPK transcripts under different experimental conditions of drought and salinity stress. Plants treated with 200 mM NaCl, the transcript expression of GmITPK2 is maximal 1 h after treatment i.e. 7.09fold and gradually reduced to 2.82fold 8 h after treatment. A steady upregulation is observed in plants treated with 0.1 mM abscisic acid as the transcript accumulation increased gradually with time ranging from 1.0 to 14fold. In PEG-induced drought stress the transcript accumulation is maximal (6.6fold) 1 h after treatment and steadily decreases to 3.4 8 h after treatment. The transcript profiles show a higher fold change in the expression GmITPK2 alone, compared to remaining members of GmITPK gene family additional information

General Information

General Information Comment Organism
physiological function inositol 1,3,4, trisphosphate 5/6 kinase (ITPK), a polyphosphate kinase that converts inositol 1,3,4-trisphosphate to inositol 1,3,4,5/6-tetraphosphate, averting the inositol phosphate pool towards phytic acid (PA) biosynthesis, is a key regulator that exists in four different isoforms in soybean. Role of inositol 1,3,4-trisphosphate 5/6 kinase-2 (GmITPK2) as a dehydration and salinity stress regulator in Glycine max. The significantly higher expression of GmITPK2 under drought and salinity stress suggests its role in providing tolerance mechanism against abiotic stress Glycine max