Human ITPK1 protein (Recombinant) (His-Tag) (STJP017764)
SPECIFICATIONS
HostE.coli
ImmunogenHuman
General Information
| Short Description | Recombinant-Human ITPK1-His-Tag protein was developed from e.coli and has a target region of His-Tag. For use in research applications. |
| Applications | SDS-PAGE |
| Host | E.coli |
| Note | STRICTLY FOR FURTHER SCIENTIFIC RESEARCH USE ONLY (RUO). MUST NOT TO BE USED IN DIAGNOSTIC OR THERAPEUTIC APPLICATIONS. |
Product Properties
| Concentration | 1 mg/mL |
| Formulation | Liquid in 20mM Tris-HCl buffer (pH 8.0) containing 0.1M NaCl, 10% Glycerol, 1mM EDTA |
| Storage Instruction | For short term storage, keep at +2C to +8C for up to 1 week. For long term storage, aliquot and store at-20C, and avoid repeat freeze-thaw cycles. |
Target Information
| Gene Symbol | ITPK1 |
| Gene ID | 3705 |
| Uniprot ID | ITPK1_HUMAN |
| Accession Number | NP_055031.2 |
| Immunogen | Human |
| Immunogen Region | 1-414aa |
| Immunogen Sequence |
Additional Info
| Tissue Specificity | Expressed in brain > heart > skeletal muscle = kidney = pancreas = liver = placenta > lung. In brain, it is expressed in cerebellum, cerebral cortex, medulla, spinal cord, occipital lobe, frontal lobe, temporal lobe and putamen. |
| Post Translational Modifications | Acetylation by EP300 and CREBBP destabilizes ITPK1, and down-regulates enzymatic activity. Deacetylated by SIRT1. |
| Function | Kinase that can phosphorylate various inositol polyphosphate such as Ins(3,4,5,6)P4 or Ins(1,3,4)P3. Phosphorylates Ins(3,4,5,6)P4 at position 1 to form Ins(1,3,4,5,6)P5. This reaction is thought to have regulatory importance, since Ins(3,4,5,6)P4 is an inhibitor of plasma membrane Ca(2+)-activated Cl(-) channels, while Ins(1,3,4,5,6)P5 is not. Also phosphorylates Ins(1,3,4)P3 on O-5 and O-6 to form Ins(1,3,4,6)P4, an essential molecule in the hexakisphosphate (InsP6) pathway. Also acts as an inositol polyphosphate phosphatase that dephosphorylates Ins(1,3,4,5)P4 and Ins(1,3,4,6)P4 to Ins(1,3,4)P3, and Ins(1,3,4,5,6)P5 to Ins(3,4,5,6)P4. May also act as an isomerase that interconverts the inositol tetrakisphosphate isomers Ins(1,3,4,5)P4 and Ins(1,3,4,6)P4 in the presence of ADP and magnesium. Probably acts as the rate-limiting enzyme of the InsP6 pathway. Modifies TNF-alpha-induced apoptosis by interfering with the activation of TNFRSF1A-associated death domain. Plays an important role in MLKL-mediated necroptosis. Produces highly phosphorylated inositol phosphates such as inositolhexakisphosphate (InsP6) which bind to MLKL mediating the release of an N-terminal auto-inhibitory region leading to its activation. Essential for activated phospho-MLKL to oligomerize and localize to the cell membrane during necroptosis. |
| Protein Name | Inositol-Tetrakisphosphate 1-KinaseInositol 1 -3 -4-Trisphosphate 5/6-KinaseInositol-Triphosphate 5/6-KinaseIns(1 -3 -4p(3 5/6-Kinase |
| Database Links | Reactome: R-HSA-1855167Reactome: R-HSA-1855204Reactome: R-HSA-983231 |
| Cellular Localisation | |
| Alternative Protein Names | Inositol-Tetrakisphosphate 1-Kinase proteinInositol 1 -3 -4-Trisphosphate 5/6-Kinase proteinInositol-Triphosphate 5/6-Kinase proteinIns(1 -3 -4p(3 5/6-Kinase proteinITPK1 protein |
Information sourced from Uniprot.org