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Recombinant human PKC theta/PRKCQ protein is a Human Full Length protein, expressed in Baculovirus infected Sf9, with >75% purity and suitable for SDS-PAGE, FuncS.

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Images

Functional Studies - Recombinant human PKC theta/PRKCQ protein (AB56641), expandable thumbnail
  • Western blot - Recombinant human PKC theta/PRKCQ protein (AB56641), expandable thumbnail
  • Western blot - Recombinant human PKC theta/PRKCQ protein (AB56641), expandable thumbnail
  • SDS-PAGE - Recombinant human PKC theta/PRKCQ protein (AB56641), expandable thumbnail
  • SDS-PAGE - Recombinant human PKC theta/PRKCQ protein (AB56641), expandable thumbnail

Key facts

Purity

>75% Densitometry

Expression system

Baculovirus infected Sf9 cells

Tags

GST tag N-Terminus

Applications

SDS-PAGE, FuncS

Biologically active

Yes

Reactivity data

Application

SDS-PAGE

Reactivity

Reacts

Dilution info

-

Notes

-

Application

FuncS

Reactivity

Reacts

Dilution info

-

Notes

Kinase assay.

Target data

Function

Calcium-independent, phospholipid- and diacylglycerol (DAG)-dependent serine/threonine-protein kinase that mediates non-redundant functions in T-cell receptor (TCR) signaling, including T-cells activation, proliferation, differentiation and survival, by mediating activation of multiple transcription factors such as NF-kappa-B, JUN, NFATC1 and NFATC2. In TCR-CD3/CD28-co-stimulated T-cells, is required for the activation of NF-kappa-B and JUN, which in turn are essential for IL2 production, and participates in the calcium-dependent NFATC1 and NFATC2 transactivation (PubMed:21964608). Mediates the activation of the canonical NF-kappa-B pathway (NFKB1) by direct phosphorylation of CARD11 on several serine residues, inducing CARD11 association with lipid rafts and recruitment of the BCL10-MALT1 complex, which then activates IKK complex, resulting in nuclear translocation and activation of NFKB1. May also play an indirect role in activation of the non-canonical NF-kappa-B (NFKB2) pathway. In the signaling pathway leading to JUN activation, acts by phosphorylating the mediator STK39/SPAK and may not act through MAP kinases signaling. Plays a critical role in TCR/CD28-induced NFATC1 and NFATC2 transactivation by participating in the regulation of reduced inositol 1,4,5-trisphosphate generation and intracellular calcium mobilization. After costimulation of T-cells through CD28 can phosphorylate CBLB and is required for the ubiquitination and subsequent degradation of CBLB, which is a prerequisite for the activation of TCR. During T-cells differentiation, plays an important role in the development of T-helper 2 (Th2) cells following immune and inflammatory responses, and, in the development of inflammatory autoimmune diseases, is necessary for the activation of IL17-producing Th17 cells. May play a minor role in Th1 response. Upon TCR stimulation, mediates T-cell protective survival signal by phosphorylating BAD, thus protecting T-cells from BAD-induced apoptosis, and by up-regulating BCL-X(L)/BCL2L1 levels through NF-kappa-B and JUN pathways. In platelets, regulates signal transduction downstream of the ITGA2B, CD36/GP4, F2R/PAR1 and F2RL3/PAR4 receptors, playing a positive role in 'outside-in' signaling and granule secretion signal transduction. May relay signals from the activated ITGA2B receptor by regulating the uncoupling of WASP and WIPF1, thereby permitting the regulation of actin filament nucleation and branching activity of the Arp2/3 complex. May mediate inhibitory effects of free fatty acids on insulin signaling by phosphorylating IRS1, which in turn blocks IRS1 tyrosine phosphorylation and downstream activation of the PI3K/AKT pathway. Phosphorylates MSN (moesin) in the presence of phosphatidylglycerol or phosphatidylinositol. Phosphorylates PDPK1 at 'Ser-504' and 'Ser-532' and negatively regulates its ability to phosphorylate PKB/AKT1. Phosphorylates CCDC88A/GIV and inhibits its guanine nucleotide exchange factor activity (PubMed:23509302). Phosphorylates and activates LRRK1, which phosphorylates RAB proteins involved in intracellular trafficking (PubMed:36040231).

Alternative names

PRKCT, PRKCQ, PRKCT, Protein kinase C theta type, nPKC-theta

Recommended products

Recombinant human PKC theta/PRKCQ protein is a Human Full Length protein, expressed in Baculovirus infected Sf9, with >75% purity and suitable for SDS-PAGE, FuncS.

Key facts

Purity

>75% Densitometry

Expression system

Baculovirus infected Sf9 cells

Applications

SDS-PAGE, FuncS

Biological activity

Specific activity: 792 nmol/min/mg

Accession
Q04759-1
Animal free

No

Species

Human

Concentration
Loading...
Storage buffer

pH: 7.5
Constituents: 25% Glycerol (glycerin, glycerine), 0.87% Sodium chloride, 0.79% Tris HCl, 0.00385% (R*,R*)-1,4-Dimercaptobutan-2,3-diol, 0.0038% EGTA, 0.00292% EDTA, 0.00174% PMSF

Sequence info

Amino acid sequence

Accession

Q04759

Protein length

Full Length

Predicted molecular weight

110 kDa

Nature

Recombinant

Tags

GST tag N-Terminus

Specifications

Form

Liquid

Additional notes

Affinity purified.

General info

Function

Calcium-independent, phospholipid- and diacylglycerol (DAG)-dependent serine/threonine-protein kinase that mediates non-redundant functions in T-cell receptor (TCR) signaling, including T-cells activation, proliferation, differentiation and survival, by mediating activation of multiple transcription factors such as NF-kappa-B, JUN, NFATC1 and NFATC2. In TCR-CD3/CD28-co-stimulated T-cells, is required for the activation of NF-kappa-B and JUN, which in turn are essential for IL2 production, and participates in the calcium-dependent NFATC1 and NFATC2 transactivation (PubMed:21964608). Mediates the activation of the canonical NF-kappa-B pathway (NFKB1) by direct phosphorylation of CARD11 on several serine residues, inducing CARD11 association with lipid rafts and recruitment of the BCL10-MALT1 complex, which then activates IKK complex, resulting in nuclear translocation and activation of NFKB1. May also play an indirect role in activation of the non-canonical NF-kappa-B (NFKB2) pathway. In the signaling pathway leading to JUN activation, acts by phosphorylating the mediator STK39/SPAK and may not act through MAP kinases signaling. Plays a critical role in TCR/CD28-induced NFATC1 and NFATC2 transactivation by participating in the regulation of reduced inositol 1,4,5-trisphosphate generation and intracellular calcium mobilization. After costimulation of T-cells through CD28 can phosphorylate CBLB and is required for the ubiquitination and subsequent degradation of CBLB, which is a prerequisite for the activation of TCR. During T-cells differentiation, plays an important role in the development of T-helper 2 (Th2) cells following immune and inflammatory responses, and, in the development of inflammatory autoimmune diseases, is necessary for the activation of IL17-producing Th17 cells. May play a minor role in Th1 response. Upon TCR stimulation, mediates T-cell protective survival signal by phosphorylating BAD, thus protecting T-cells from BAD-induced apoptosis, and by up-regulating BCL-X(L)/BCL2L1 levels through NF-kappa-B and JUN pathways. In platelets, regulates signal transduction downstream of the ITGA2B, CD36/GP4, F2R/PAR1 and F2RL3/PAR4 receptors, playing a positive role in 'outside-in' signaling and granule secretion signal transduction. May relay signals from the activated ITGA2B receptor by regulating the uncoupling of WASP and WIPF1, thereby permitting the regulation of actin filament nucleation and branching activity of the Arp2/3 complex. May mediate inhibitory effects of free fatty acids on insulin signaling by phosphorylating IRS1, which in turn blocks IRS1 tyrosine phosphorylation and downstream activation of the PI3K/AKT pathway. Phosphorylates MSN (moesin) in the presence of phosphatidylglycerol or phosphatidylinositol. Phosphorylates PDPK1 at 'Ser-504' and 'Ser-532' and negatively regulates its ability to phosphorylate PKB/AKT1. Phosphorylates CCDC88A/GIV and inhibits its guanine nucleotide exchange factor activity (PubMed:23509302). Phosphorylates and activates LRRK1, which phosphorylates RAB proteins involved in intracellular trafficking (PubMed:36040231).

Sequence similarities

Belongs to the protein kinase superfamily. AGC Ser/Thr protein kinase family. PKC subfamily.

Post-translational modifications

Autophosphorylation at Thr-219 is required for targeting to the TCR and cellular function of PRKCQ upon antigen receptor ligation. Following TCR stimulation, phosphorylated at Tyr-90 and Ser-685.

Storage

Shipped at conditions

Dry Ice

Appropriate short-term storage conditions

-80°C

Appropriate long-term storage conditions

-80°C

Aliquoting information

Upon delivery aliquot

Storage information

Avoid freeze / thaw cycle

This product is an active protein and may elicit a biological response in vivo, handle with caution.

Notes

PKC epsilon peptide ab204875 (PKC epsilon peptide) can be utilized as a substrate for assessing kinase activity

This product was previously labelled as PKC theta

Supplementary info

This supplementary information is collated from multiple sources and compiled automatically.

Activity summary

PKC theta also known as PRKCQ is a protein kinase involved in signal transduction. The mass of PKC theta is approximately 85 kDa. It is a member of the protein kinase C (PKC) family which has distinctive roles in cellular processes. PKC theta specifically localizes in T-cells and is an important player in immune system functions. It is expressed predominantly in lymphoid tissues such as the spleen and thymus where T-cell activation and differentiation are significant.

Biological function summary

PKC theta participates in T-cell receptor signaling involved in the formation of immune synapses. It is an essential component of the multiprotein complex that includes molecules like LAT SLP-76 and Lck. PKC theta's activation allows the transmission of activation signals leading to the production of cytokines like IL-2. This function is integral to ensuring an effective immune response and the maintenance of immune homeostasis.

Pathways

PKC theta is central in the NF-kB pathway which transmits signals from T-cell receptors to the nucleus promoting gene transcription. It also plays a role in the AP-1 pathway collaborating with proteins such as CARMA1 and BCL10. These pathways underpin the immune response coordinating T-cell activation proliferation and survival linking PKC theta function to several immunological processes.

Associated diseases and disorders

PKC theta has connections with autoimmune conditions such as rheumatoid arthritis and type 1 diabetes. In these disorders its role in T-cell signaling becomes dysregulated. This can lead to the overactive immune response against the body's tissues. Additionally PKC theta may interact with proteins involved in inflammatory signaling like NF-kB exacerbating inflammation and tissue damage. Understanding these relationships is important for developing therapies targeting immune dysregulation.

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