Product Details

Uniprot No.

Q04759

Target Names

PRKCQ

Alternative Names

Protein kinase C theta type (EC 2.7.11.13) (nPKC-theta), PRKCQ, PRKCT

Species Reactivity

Human, Mouse

Immunogen

A synthesized peptide derived from human PKC theta

Immunogen Species

Homo sapiens (Human)

Conjugate

Non-conjugated

Clonality

Monoclonal

Isotype

Rabbit IgG

Clone No.

1B2

Purification Method

Affinity-chromatography

Concentration

It differs from different batches. Please contact us to confirm it.

Buffer

Rabbit IgG in 10mM phosphate buffered saline , pH 7.4, 150mM sodium chloride, 0.05% BSA, 0.02% sodium azide and 50% glycerol.

Form

Liquid

Tested Applications

ELISA, WB

Recommended Dilution

Application	Recommended Dilution
WB	1:500-1:5000

Protocols

ELISA Protocol
Western Blotting(WB) Protocol

Troubleshooting and FAQs

Antibody FAQs

Storage

Upon receipt, store at -20°C or -80°C. Avoid repeated freeze.

Lead Time

Basically, we can dispatch the products out in 1-3 working days after receiving your orders. Delivery time maybe differs from different purchasing way or location, please kindly consult your local distributors for specific delivery time.

Description

Protein kinase C theta (PRKCQ) serves as a critical signaling molecule in T cell activation and immune response regulation, functioning as a calcium-independent serine/threonine kinase that plays essential roles in NF-κB pathway activation and T cell receptor signaling. Its involvement in adaptive immunity and inflammatory processes makes PRKCQ a significant target for researchers investigating immunological mechanisms, autoimmune conditions, and T cell-mediated responses.

This recombinant monoclonal antibody, clone 1B2, offers the reproducibility and consistency that demanding experimental workflows require. Because the antibody sequence is defined and produced recombinantly in rabbit host, you can expect uniform performance across different lots, eliminating the variability concerns that can complicate long-term studies or multi-site collaborations.

Western blot validation demonstrates reliable detection across multiple sample types, including 293T, K562, and THP-1 human cell lysates, as well as mouse brain tissue, confirming cross-species reactivity for both human and mouse targets. The antibody performs effectively at dilutions ranging from 1:500 to 1:5000, giving you flexibility to optimize for your specific experimental conditions. Validation studies reveal bands at 82 kDa and 55 kDa, with the predicted molecular weights spanning 68-82 kDa reflecting known PRKCQ isoforms. The observed 55 kDa band likely represents a proteolytic fragment or alternatively processed form commonly encountered with this kinase in certain cellular contexts.

Whether you are investigating signal transduction pathways, characterizing immune cell populations, or exploring PRKCQ's role in disease models, this antibody provides a dependable tool validated for western blotting and ELISA applications across both human and mouse systems.

Usage

For Research Use Only. Not for use in diagnostic or therapeutic procedures.

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Target Background

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. 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.

Gene References into Functions

The Pro(168) residue in the C1a domain of full length PKCtheta; plays a critical role in the ligand and membrane binding, while exchanging the residue (Lys(240)) at the same position in C1b domain of full length PKCtheta; only modestly reduced the membrane interaction. PMID: 29317197
PKC-theta; is strongly and exclusively expressed in GISTs and interacts with intracellular mutant KIT to promote its stabilization by increased retention in the Golgi complex. PKC-theta; plays critical roles in the sustained activation of MT-KITs. Overexpression of PKC-theta; significantly correlates with several clinicopathological parameters PMID: 27440273
PCR and transcriptome analysis suggest that the genes CD3D and PKRCQ together can be used as a model for differentiating between B-cell and T-cell acute lymphoblastic leukemia. PMID: 27494091
PKC-theta; is a critical factor for type 2 innate lymphoid cells activation that contributes to TH2 cell differentiation, which is associated with IRF4 and NFAT1 expression in allergic lung inflammation. PMID: 27746240
Enhanced PRKCQ/PKCtheta; expression can promote growth-factor-independent growth, anoikis resistance, and migration. PRKCQ critically regulates growth and survival of a subset of TNBC. PMID: 27663795
Data suggest that, in T-lymphocytes, nitric oxide generated by eNOS S-nitrosylates Cys374 on ACTB and thus regulates activation/recruitment of PRKCQ at immune synapse; S-nitrosylation of beta-actin impairs actin binding to PFN1 and regulates protein transport in lamellipodia. (eNOS = nitric oxide synthase 3; ACTB = beta-actin; PRKCQ = protein kinase C-theta; PFN1 = profilin-1) PMID: 28394935
PKCtheta;-induced phosphorylations control the ability of Fra-1 to stimulate gene expression and breast cancer cell migration. PMID: 27816489
Within the nucleus, PKC-theta; catalytic activity maintains the Ser536 phosphorylation on the p65 subunit of NF-kappaB (also known as RelA) and can directly influence chromatin accessibility at transcriptional memory genes by regulating H2B deposition. PMID: 27149922
Data show that tonantzitlolone (TZL) was able to induce protein kinase c theta (PKCtheta;)-dependent heat shock transcription factor 1 (HSF1)phosphorylation. PMID: 26298773
The PRKCQ polymorphism is not associated with Behcet's Disease. PMID: 26784953
Sumoylation of PKC-theta; was essential for T cell activation. Desumoylation did not affect the catalytic activity of PKC-theta; but inhibited the association of CD28 with PKC-theta; and filamin A and impaired the assembly of a mature immunological synapse. PMID: 26390157
Together, these findings both in Jurkat T cells as well as in primary T cells indicate a regulatory role of Coro1A on PKCtheta; recruitment and function downstream of the TCR leading to NF-kappaB transactivation. PMID: 25889880
PKCtheta; acts through the activation of p38 MAPK and autophagy induction. PKCtheta; acts through the activation of p38 MAPK and autophagy induction to induce the Epstein-Barr virus (EBV) lytic cycle. PMID: 25827954
Data suggest that protein kinase C theta (PKCtheta;) inhibition alone may be sufficient to drive efficacy in chronic autoimmune and inflammatory diseases. PMID: 25000588
responsive to chemokine induced migration and are defective in migration to lymph nodes. Our results reveal a novel role for PKCtheta; in regulating T cell migration PMID: 24250818
protein kinase C-theta promotes Epithelial to mesenchymal transition by acting as a critical chromatin-anchored switch for inducible genes via transforming growth factor beta and the key inflammatory regulatory protein NF-kappaB. PMID: 24891615
Diacylglycerol activation of protein kinase Ctheta; and subsequent impairment of insulin signaling plays a major role in the pathogenesis of muscle insulin resistance in humans. PMID: 24979806
The results show that PKC-theta; has important diagnostic significance in gastrointestinal stromal tumors. PMID: 23862765
Results show that T allele of rs500766 in PRKCQ was associated with a reduced risk of ACE inhibitor-associated angioedema in the Nashville/Marshfield sample and ONTARGET. PMID: 23838604
This is the first study that shows that the activity of PKC-theta; is regulated by the intracellular redox state, and that PKC-theta; is recruited to the plasma membrane in an inactive form in naive T cells. PMID: 23436678
PRKCQ is the only T cell-expressed protein kinase C that localizes selectively to center of immunological synapse following T cell antigen stimulation; this unique localization is essential for PRKCQ-mediated downstream signaling. [REVIEW] PMID: 23433459
Protein kinase C-theta (PKCtheta;) phosphorylates and inhibits the guanine exchange factor, GIV/Girdin. PMID: 23509302
The emerging role of protein kinase Ctheta; in cytoskeletal signaling. PMID: 23192428
These results reveal key functional roles for PKC-theta and ROS in T cell acute lymphoblastic leukemia and suggest that aggressive biological behavior in vivo could be limited by therapeutic strategies that promote PKC-theta expression or activity PMID: 23086478
PKCtheta signalling as an important regulator of Fra-1 accumulation in estrogen receptor positive breast cancer cells. PMID: 22286759
establish the C2 domain of PKCtheta; as a Tyr(P)-binding domain and suggest that the domain may play a major role in PKCtheta; activation via its Tyr(P) binding. PMID: 22787157
alterations in nPKC location and increased expression of PKC theta observed is a result of modification of PKC-mediated signal transduction and cell function PMID: 22905394
AMPK regulates expression of FASL and COX-2 via the protein kinase C theta - dependent pathway in activated Jurkat cells. PMID: 22330070
Interleukin-1beta-induced decrease in transendothelial electrical resistance is prevented by small hairpin RNA silencing of PKC-Theta. PMID: 22403784
TLR-dependent TRAF6-MKK3-p38 MAPK signaling pathway synergizes with PKCtheta;-MEK-ERK signaling pathway. CARMA1 plays a crucial role in mediating this synergistic effect via TRAF6. PMID: 22303480
The most sensitive marker for gastrointestinal stromal tumors was CD117, followed by DOG-1 and PKCtheta. PMID: 22197035
c-KIT, PKC-theta; and DOG-1 antigens are the most sensitive and specific immunomarkers for confirming EGISTs PMID: 22399613
High nuclear protein kinase C theta expression may correlate with disease recurrence and poor survival in oral squamous cell carcinoma. PMID: 21840039
Protein kinase C-theta in platelet activation PMID: 21944869
both DOG1 and PKC-theta; can be used in the diagnosis of KIT-negative GISTs PMID: 21358619
PRKCQ is regulated by RUNX1 in megakaryocytes and platelets, and provide an explanation for the decreased PKC-theta expression in RUNX1 haplodeficiency. PMID: 21252065
Results provide a molecular explanation for the role of PKC-theta; not only in normal T cell function, but also in circumstances of its ectopic expression in cancer. PMID: 21419345
In TRAIL costimulation, lipid raft recruitment of Lck tyrosine kinase integrates mitogenic NF-kappaB-dependent signals from the T cell receptor and TRAIL in T lymphocytes. PMID: 21160038
Reduced expression of PKCtheta is well correlated with the grade of human hepatocellular carcinoma cancer cells PMID: 19949911
Compared with CD117, DOG1 (using the K9 antibody) is a more specific marker, whereas PKC theta (using the clone 27 antibody) is a considerably less specific immunohistochemical marker for GIST. PMID: 20716167
STudies indicate that in regulatory T cells, PKC-theta inhibits their function and, intriguingly, is sequestered from the activating cellular interface. PMID: 20664063
ingenol 3-angelate inhibits T cell apoptosis by activating protein kinase Ctheta PMID: 20472553
The protein kinase C theta transduction pathway is identified as a main regulator of the NKG2D-mediated costimulation of antitumor Vgamma9Vdelta2 cytolytic T cell responses. PMID: 20511557
Protein kinase C-theta regulates KIT expression and proliferation in gastrointestinal stromal tumors. PMID: 18521081
formation of immunological synapse(IS) induces altered signal pathways in Treg, characterized by reduced recruitment of Src kinases, PKC-theta & Carma-1 to the IS; in Treg, PKC-theta acts as a proinflammatory mediator & this effect is enhanced by TNFalpha PMID: 20339032
Interaction of Bruton's tyrosine kinase and protein kinase Ctheta in platelets PMID: 11788586
Translocation of PKC[theta] in T cells is mediated by a nonconventional, PI3-K- and Vav-dependent pathway, but does not absolutely require phospholipase C PMID: 11956228
PKC theta functions as a positive modulator of calcineurin-regulated retinoid X receptor responsive element-dependent transcription during T cell activation. PMID: 12097375
PKC theta is rapidly and persistently activated in gamma delta T cells by the mycobacterial phosphoantigen isopentenyl pyrophosphate, as determined by evidence of translocation and phosphorylation. PMID: 12421956
T cell activation silences nuclear receptor-dependent transactivation in part through PKC theta-dependent enhancement of silencing mediator of retinoic acid and thyroid hormone receptors (SMRT)-receptor interaction. PMID: 12890684

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Subcellular Location

Cytoplasm. Cell membrane; Peripheral membrane protein. Note=In resting T-cells, mostly localized in cytoplasm. In response to TCR stimulation, associates with lipid rafts and then localizes in the immunological synapse.

Protein Families

Protein kinase superfamily, AGC Ser/Thr protein kinase family, PKC subfamily

Tissue Specificity

Expressed in skeletal muscle, T-cells, megakaryoblastic cells and platelets.

Database Links

HGNC: 9410

OMIM: 600448

KEGG: hsa:5588

STRING: 9606.ENSP00000263125

UniGene: Hs.498570

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Code	CSB-RA978159A0HU
Size	US$210
	Order now
Image	Western Blot Positive WB detected in: 293T whole cell lysate, K562 whole cell lysate, THP-1 whole cell lysate, Mouse Brain whole cell lysate All lanes: PKC antibody at 1:1000 Secondary Goat polyclonal to rabbit IgG at 1/50000 dilution Predicted band size: 82, 75, 68 kDa Observed band size: 82, 55 kDa
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PRKCQ Recombinant Monoclonal Antibody

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