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PIK3CA E542K/PIK3R1 (p110 alpha E542K/p85 alpha) Recombinant Human Protein Invitrogen™

This PIK3CA E542K/PIK3R1 (p110 alpha E542K/p85 alpha) recombinant human protein (full length) was expressed in insect cells. PIK3CA E542K/PIK3R1 (p110 alpha E542K/p85 alpha) lipid kinase is comprised of a 110 kDa catalytic subunit and an 85 kDa regulatory subunit. A number of isoforms of the 110 kDa catalytic subunit and the 85 kDa regulatory subunit exist in cells. PIK3CA is frequently mutated or amplified in a variety of cancers including ovarian and colon and this kinase is one of the PI3K mutants. PIK3CA gene copy number is increased in over 30% of ovarian cancers and this leads to increased PI3-kinase activity. Furthermore, the activity of PIK3CA is essential for vascular development and inactivation of PIK3CA leads to severe defects in angiogenic sprouting and vascular remodeling. PIK3CA E542K/PIK3R1 (p110 alpha E542K/p85 alpha) recombinant human protein is also available in our SelectScreen™ Kinase Profiling Service.

• Validated for use with the Adapta™ assay
• Available in multiple pack sizes for convenient use
• Also available in our SelectScreen Kinase Profiling Service

PIP4K2A Recombinant Human Protein Invitrogen™

This PIP4K2A recombinant human protein (full length) was expressed in insect cells. PIP4K2A lipid kinase or phosphatidylinositol-5-phosphate 4-kinase, type II, alpha, is a member of the phosphatidylinositol-5-phosphate 4-kinase family that catalyzes the phosphorylation of phosphatidylinositol-5-phosphate on the fourth hydroxyl of the myo-inositol ring to form phosphatidylinositol-4,5-bisphosphate. PIP4K2A plays as essential role in the phosphoinositide signal transduction cascades as the precursor to second messengers and is involved in the regulation of secretion, cell proliferation, differentiation, and motility. PIP4K2A may be one of the factors related to the regulation of the beta-globin gene expression and the different levels of Hb H in alpha-thalassemic patients. PIP4K2A recombinant human protein is also available in our SelectScreen™ Kinase Profiling Service.

• Validated for use with the Adapta™ assay
• Available in multiple pack sizes for convenient use
• Also available in our SelectScreen Kinase Profiling Service

PIP5K1A Recombinant Human Protein Invitrogen™

This PIP5K1A recombinant human protein (full length) was expressed in insect cells. PIP5K1A lipid kinase or phosphatidylinositol-4-phosphate 5-kinase 1 alpha phosphorylates phosphatidylinositol-4-phosphate to form phosphatidylinositol 4,5-bisphosphate. PIP5K1 is required for Wnt3a-induced LRP6 phosphorylation at ser1490 in mammalian cells. Wnt3a stimulates the formation of phosphatidylinositol 4,5-bisphosphates through 'frizzled' and 'dishevelled', the latter of which directly interacts with and activated PIP5KI. PIP5K1A-mediated PIP(2) production is crucial for HIV-1 entry and the early steps of infection in permissive lymphocytes. Overexpression of wild-type PI4P5K1A increases HIV-1 Env-mediated PIP(2) production and enhances viral replication in primary lymphocytes. PIP5K1A recombinant human protein is also available in our SelectScreen™ Kinase Profiling Service.

• Validated for use with the Adapta™ assay
• Available in multiple pack sizes for convenient use
• Also available in our SelectScreen Kinase Profiling Service

PIK3C3 (hVPS34) Recombinant Human Protein

PIK3C3 (hVPS34) is the sole class III member of the PI3 Kinase family. PIK3C3 phosphorylates phosphatidylinositol (PI) to produce phosphatidylinositol 3-phosphate [PI(3)P], which recruits downstream effectors containing FYVE and Phox domains to membranes. PIK3C3 is involved in coupling nutrient signaling to mTOR and also plays a role in autophagy and intracellular trafficking.

PIK3C2A (PI3K-C2 alpha) Recombinant Human Protein

The Class II PI3 kinases, including PIK3C2A, phosphorylate the 3 position of PI or PI4P. Though not as well studied as the Class I PI3 kinases, the Class II enyzmes have been linked to diverse, recpetor-mediated cellular processes including insulin signalling, neuronal survival, and growth factor signalling.

PIK3CG (p110 gamma) Recombinant Human Protein

PIK3CG (p110 gamma) is the sole class IB phosphatidylinositol 3-kinase family member, which along with the class IA family members, generates the important second messenger PIP2. However, unlike the class IA enzymes which signal downstream of receptor tyrosine kinases, PIK3CG primarily signals downstream of GPCRs.

PIP5K1B Recombinant Human Protein Invitrogen™

This PIP5K1B recombinant human protein (full length) was expressed in insect cells. PIP5K1B lipid kinase or phosphatidylinositol-4-phosphate 5-kinase, type I, beta is a member of the phosphatidylinositol-4-phosphate 5-kinase family. PIP5K1B gene contains 17 exons and spans more than 300 kb. The seventeenth exon was found by RT-PCR, and is derived from the 3-prime untranslated region of the PRKACG gene which is located on 9q13 approximately 3 kb downstream of the STM7.I 3-prime untranslated region. The overexpression of PIP5K1B in COS-7 cells induces an increase in short actin fibers and a decrease in actin stress fibers. PIP5K1B recombinant human protein is also available in our SelectScreen™ Kinase Profiling Service.

• Validated for use with the Adapta™ assay
• Available in multiple pack sizes for convenient use
• Also available in our SelectScreen Kinase Profiling Service

PIK3CA/PIK3R1 (p110 alpha/p85 alpha) Recombinant Human Protein

PIK3CA (p110 alpha) is known to be involved in the PI 3-kinase⁄AKT signaling pathway, which plays an important role in regulating cell growth and apoptosis. PIK3CA is coexpressed and copurified with the regulatory subunit PI3KR1.

SPHK2 Recombinant Human Protein

SPHK2, along with SPHK1, catalyzes the phosphorylation of sphingosine producing the signalling molecule sphingosine-1-phosphate (S1P). S1P signals through G-protein coupled receptors and controls diverse cellular processes. Inhibitors of SPHKs are viewed as potential therapuetics for the treatment of cancer.

PIP5K1C Recombinant Human Protein Invitrogen™

This PIP5K1C recombinant human protein (full length) was expressed in insect cells. PIP5K1C lipid kinase or phosphatidylinositol-4-phosphate 5-kinase 1 gamma phosphorylates phosphatidylinositol-4-phosphate to form phosphatidylinositol 4,5-bisphosphate. PIP5K1C is found at synapses and has been found to play roles in endocytosis and cell migration. PIP5K1C directly associates with β-catenin and increases β-catenin activity downstream of growth factor stimulation. PIP5K1C expression and kinase activity enhance β-catenin phosphorylation on residues that promote nuclear importation and transcriptional activity. PIP5K1C deficiency impairs neutrophil recruitment as a result of defect in adhesion. PIP5K1C regulated the adhesion through facilitation of RhoA GTPase and integrin activation by chemoattractants. PIP5K1C recombinant human protein is also available in our SelectScreen™ Kinase Profiling Service.

• Validated for use with the Adapta™ assay
• Available in multiple pack sizes for convenient use
• Also available in our SelectScreen Kinase Profiling Service

DNA-PK Human Protein

DNA-PK is a heterotrimeric, DNA-dependent protein kinase that initiates signalling cascades in response to DNA damage. DNA-PK is an atypical kinase, closely related to the PI3 kinases, and is often potently inhibited by small molecules designed to target PI3 kinases.

PIK3CA/PIK3R3 (p110 alpha /p55 gamma) Recombinant Human Protein Invitrogen™

This PIK3CA/PIK3R3 (p110 alpha /p55 gamma) recombinant human protein (full length) was expressed in insect cells. PIK3CA/PIK3R3 lipid kinase (p110 alpha /p55 gamma) or Phosphatidylinositol 3-kinase (PIK3) phosphorylates the inositol ring of phosphatidylinositol at the 3-prime position which serves as second messenger in growth signaling pathways. PIK3CA comprises a 110 kDa catalytic subunit and a regulatory subunit of either 85, 55, or 50 kDa. PIK3CA plays an important role in the metabolic actions of insulin, and a mutation in the PIK3CA has been associated with insulin resistance and plays an important role in glucose homeostasis in vivo. PIK3CA also plays an essential role in the development and induction of mast cells in normal and pathogenic immune responses. PIK3CA/PIK3R3 (p110 alpha /p55 gamma) recombinant human protein is also available in our SelectScreen™ Kinase Profiling Service.

• Validated for use with the Adapta™ assay
• Available in multiple pack sizes for convenient use
• Also available in our SelectScreen Kinase Profiling Service

PIK3CD/PIK3R1 (p110 delta/p85 alpha) Recombinant Human Protein, His tag

Phosphatidylinositol 3-kinase (PI3K) is composed of a catalytic subunit (p110δ) and a regulatory subunit (p85α in this case), which are encoded by the PIK3CD and PIK3R1 genes. PI3K phosphorylates phosphoinositides on the 3-hydroxyl group of the inositol ring. It plays a role in oncogenic transformation and is consistently expressed at a high level in AML blast cells. PI3K can play a selective role in the amplification of phosphatidylinositol (3,4,5) trisphosphate (PIP3) levels that leads to neutrophil polarization, and regulates directional migration, but not random locomotion. The PI3K signaling pathway is involved in immune responses relevant to the pathogenesis of rheumatoid arthritis and other inflammatory diseases.

PIK3CD/PIK3R1 (p110δ/p85α) recombinant human protein is:
• Available in 3 convenient sizes
• Validated in our Adapta™ and Kinase Binding assays
• A full length protein that can help advance your research when used with validated assays

Related assay platforms:
LanthaScreen® Kinase Binding Assay
Adapta® Kinase Activity Assay

PI4K2B (PI4K2 beta) Recombinant Human Protein Invitrogen™

This PI4K2B (PI4K2 beta) recombinant human protein (full length) was expressed in insect cells. PI4K2B lipid kinase is a member of the phosphatidylinositol 4-kinase family (PI4K) that phosphorylate phosphatidylinositol to generate phosphatidylinositol 4-phosphate which are immediate precursor of several important signaling and scaffolding molecules. PI4K2B is primarily a cytosolic PI4K that is recruited to membranes where it stimulates phosphatidylinositol 4,5-bisphosphate syntheses. PI4K2B uses phosphatidylinositol as its primary substrate and has no activity on phosphatidylinositol monophosphates. PI4K2B is a restricted minor histocompatibility antigen in patients that had been successfully treated with donor lymphocyte infusions for relapsed chronic myeloid leukemia after allogeneic stem cell transplantation. PI4K2B (PI4K2 beta) recombinant human protein is also available in our SelectScreen™ Kinase Profiling Service.

• Validated for use with the Adapta™ assay
• Available in multiple pack sizes for convenient use
• Also available in our SelectScreen Kinase Profiling Service

PIK3C2B (PI3K-C2 beta) Recombinant Human Protein

The class II PI3 kinases, including PIK3C2B, phosphorylate the 3 position of PI or PI4P. Though not as well studied as the class I PI3 kinases, the class II enyzmes have been linked to diverse, recpetor-mediated cellular processes including insulin signalling, neuronal survival, and growth factor signalling.
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