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Literature summary for 2.7.1.127 extracted from

  • Miller, G.J.; Hurley, J.H.
    Crystal structure of the catalytic core of inositol 1,4,5-trisphosphate 3-kinase (2004), Mol. Cell, 15, 703-711.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
expression of mutant cDNA fragment encoding for residues 185-459 of the catalytic domain of isozyme A as unlabeled or selenomethionine-labeled GST fusion proteins in Escherichia coli Rattus norvegicus

Crystallization (Commentary)

Crystallization (Comment) Organism
purified recombinant unlabeled or selennomethionine-labeled mutant catalytic domain residues 185-459, 10 mg/ml protein in 25 mM Tris-HCl, pH 8.0, 150 mM NaCl, and 10 mM DTT, crystallization solution contains 2.2 M ammonium sulfate, 0.2 M sodium formate, 10 mM DTT, 10 mM ADP, 10 mM 1D-myo-inositol 1,3,4,5-tetrakisphosphate, and 10 mM MgCl2, cryoprotection of crystals by successive transfer into 5-15% glycerol in mother liquor, X-ray diffraction structure determination and analysis at 2.2 A resolution Rattus norvegicus

Protein Variants

Protein Variants Comment Organism
D423N crystal structure determination and analysis Rattus norvegicus
L217M crystal structure determination and analysis Rattus norvegicus

Metals/Ions

Metals/Ions Comment Organism Structure
Mg2+
-
Rattus norvegicus

Organism

Organism UniProt Comment Textmining
Rattus norvegicus
-
isozyme A
-

Purification (Commentary)

Purification (Comment) Organism
unlabeled or selenomethionine-labeled recombinant residues 185-459 of the catalytic domain of isozyme A fused to GST from Escherichia coli by glutathione affinity chromatography, removal of the GST-tag by recombinant TEV protease, further purification by a second step of glutathione affinity chromatography, adsorption chromatography, and gel filtration Rattus norvegicus

Reaction

Reaction Comment Organism Reaction ID
ATP + 1D-myo-inositol 1,4,5-trisphosphate = ADP + 1D-myo-inositol 1,3,4,5-tetrakisphosphate catalytic core structure, substrate binding and catalytic mechanism, structure-function realtionship Rattus norvegicus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ATP + 1D-myo-inositol 1,4,5-trisphosphate
-
Rattus norvegicus ADP + 1D-myo-inositol 1,3,4,5-tetrakisphosphate
-
?
additional information the enzyme contains a catalytic domain and a 4-helix substrate binding domain, both are in an open conformation with respect to each other, thus substrate recognition and catalysis involve a dynamic conformational cycle Rattus norvegicus ?
-
?

Subunits

Subunits Comment Organism
More the enzyme contains a catalytic domain and a 4-helix substrate binding domain, both are in an open conformation with respect to each other, thus substrate recognition and catalysis involve a dynamic conformational cycle Rattus norvegicus

Synonyms

Synonyms Comment Organism
inositol 1,4,5-trisphosphate 3-kinase
-
Rattus norvegicus
IP3KA
-
Rattus norvegicus
More the enzyme is a member of the protein kinase superfamily Rattus norvegicus

Cofactor

Cofactor Comment Organism Structure
ATP binding site structure Rattus norvegicus