- Catalog number
- A04249-2
- Size / count
- 100 µg/Vial
- Dry ice
- No
- Hazardous
- No
- Discontinued
- No
- Background
- Phosphatidylinositol 4-kinase beta is an enzyme that in humans is encoded by the PI4KB gene. Inositol phospholipids have an important role in intracellular signaling in response to hormones, growth factors and neurotransmitters. Phosphatidylinositol 4-kinase phosphorylates phosphatidylinositol (PI) to phosphatidylinositol-4-phosphate (PIP) . In a second step, PIP is further phosphorylated to phosphatidylinositol-4,5-bisphosphate (PIP2), and PIP2 is subsequently hydrolyzed by phospholipase C, producing the two intracellular second messengers, inositol 1,4,5-triphosphate (IP3) and diacylglycerol (DAG) . PI4K230, PI4K92 and PI4K55 are three PI4 kinase isoforms that have been characterized and classified according to their molecular weights of 230, 92 and 55 kD. Previously, PI4 kinases were classified into type II and III enzymes. All isoforms are located on distinct membranes and cellular compartments suggesting various tasks. PI4K230 is located at the endoplasmatic reticulum and outer membranes of mitochondria, PI4K92 at the Golgi apparatus and endoplasmatic reticulum, and PI4K55 at the plasma membrane and endosomes. PI4K230 is predominantly expressed in brain and moderately sensitive to wortmannin as well as specifically and irreversibly inhibited by cyclitol derivatives.
- Synonyms
- 70 kDa ribosomal protein S6 kinase 1 antibody, KS6B1_HUMAN antibody, p70 alpha antibody, P70 beta 1 antibody, p70 ribosomal S6 kinase alpha antibody, p70 ribosomal S6 kinase beta 1 antibody, p70 S6 kinase alpha antibody, P70 S6 Kinase antibody, p70 S6 kinase alpha 1 antibody, p70 S6 kinase alpha 2 antibody, p70 S6K antibody, p70 S6K-alpha antibody, p70 S6KA antibody, p70 (S6K) alpha antibody, p70 (S6K) -alpha antibody, p70-alpha antibody, p70-S6K 1 antibody, p70-S6K antibody, P70S6K antibody, P70S6K1 antibody, p70S6Kb antibody, PS6K antibody, Ribosomal protein S6 kinase 70kDa polypeptide 1 antibody, Ribosomal protein S6 kinase beta 1 antibody, Ribosomal protein S6 kinase beta-1 antibody, Ribosomal protein S6 kinase I antibody, RPS6KB1 antibody, S6K antibody, S6K-beta-1 antibody, S6K1 antibody, Serine/threonine kinase 14 alpha antibody, Serine/threonine-protein kinase 14A antibody, STK14A antibody
- Gene Name
- PI4KB
- Gene ID
- 5298
- UniProt
- Q9UBF8
- Host
- Rabbit
- Reactivity
- Human, Mouse, Rat
- Cross Reactivity
- No cross reactivity with other proteins.
- Immunogen
- E.coli-derived human PI4KB recombinant protein (Position: D375-D671) . Human PI4KB shares 100% and 99.7% amino acid (aa) sequence identity with mouse and rat PI4KB, respectively
- Clonality
- Polyclonal
- Tissue Specificity
- Expressed in all tissues.
- Applications
- WB, IHC, Flow Cytometry, ELISA
- Field of Research
- Signal Transduction, Signaling Pathway, Small G Proteins
- Purification
- Immunogen affinity purified.
- Concentration
- Adding 0.2 ml of distilled water will yield a concentration of 500 μg/ml.
- Form
- Lyophilized
- Reconstitution
- Adding 0.2 ml of distilled water will yield a concentration of 500 μg/ml.
- Function
- Downstream effector of TOR signaling pathway involved in osmotic stress response. Could be involved in the control of plant growth and development. Phosphorylates the ribosomal proteins P14, P16 and S6. Functions as a repressor of cell proliferation and required for maintenance of chromosome stability and ploidy levels through the RBR1-E2F pathway.
- References & Citations
- 1. Burke, J. E., Inglis, A. J., Perisic, O., Masson, G. R., McLaughlin, S. H., Rutaganira, F., Shokat, K. M., Williams, R. L. Structures of PI4KIII-beta complexes show simultaneous recruitment of Rab11 and its effectors. Science 344: 1035-1038, 2014. 2. Gromada, J., Bark, C., Smidt, K., Efanov, A. M., Janson, J., Mandic, S. A., Webb, D.-L., Zhang, W., Meister, B., Jeromin, A., Berggren, P.-O. Neuronal calcium sensor-1 potentiates glucose-dependent exocytosis in pancreatic beta cells through activation of phosphatidylinositol 4-kinase beta. Proc. Nat. Acad. Sci. 102: 10303-10308, 2005. 3. Jovic, M., Kean, M. J., Szentpetery, Z., Polevoy, G., Gingras, A.-C., Brill, J. A., Balla, T. Two phosphatidylinositol 4-kinases control lysosomal delivery of the Gaucher disease enzyme, beta-glucocerebrosidase. Molec. Biol. Cell 23: 1533-1545, 2012.
- Storage Conditions
- At -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freezing and thawing.
- Calculated Molecular Weight
- 52588 MW
- Observed Molecular Weight
- 95 kDa
- Applications Notes
- 6
- Gene Name Synonym
- Serine/threonine-protein kinase AtPK1/AtPK6
- Subcellular Location
- Cytoplasm. Nucleus.
- Protein Name
- Serine/threonine-protein kinase AtPK1/AtPK6
- Isotype
- IgG
- Contents
- Each vial contains 4 mg Trehalose, 0.9 mg NaCl, 0.2 mg Na2HPO4.
