Anti-PKC delta/PRKCD Antibody Picoband®

Protein kinase C delta type, also called PKCD, is an enzyme that in humans is encoded by the PRKCD gene. The PRKCD gene encodes a member of the protein kinase C family, members of which are critical for regulation of cell survival, proliferation, and apoptosis. This gene is mapped to 3p21.1. Studies both in human and mice demonstrate that this kinase is involved inB cell signaling and in the regulation of growth, apoptosis, and differentiation of a variety of cell types. PRKCD is also regulated by phosphorylation on various tyrosine residues including Y311 (by SRC) . It has been showed that PRKCD phosphorylates NLRC4 and that this phosphorylation is critical for inflammasome assembly. What’s more, it is also a part of a noncanonical WNT signaling cascade.

Protein kinase C delta type;2.7.11.13; Tyrosine-protein kinase PRKCD;2.7.10.2; nPKC-delta; Protein kinase C delta type regulatory subunit; Protein kinase C delta type catalytic subunit; Sphingosine-dependent protein kinase-1; SDK1; PRKCD

E.coli-derived human PKC delta recombinant protein (Position: M1-E160) . Human PKC delta shares 95% and 93% amino acid (aa) sequence identity with mouse and rat PKC delta, respctively.

Calcium-independent, phospholipid- and diacylglycerol (DAG) -dependent serine/threonine-protein kinase that plays contrasting roles in cell death and cell survival by functioning as a pro-apoptotic protein during DNA damage-induced apoptosis, but acting as an anti-apoptotic protein during cytokine receptor- initiated cell death, is involved in tumor suppression as well as survival of several cancers, is required for oxygen radical production by NADPH oxidase and acts as positive or negative regulator in platelet functional responses. Negatively regulates B cell proliferation and also has an important function in self- antigen induced B cell tolerance induction. Upon DNA damage, activates the promoter of the death-promoting transcription factor BCLAF1/Btf to trigger BCLAF1-mediated p53/TP53 gene transcription and apoptosis. In response to oxidative stress, interact with and activate CHUK/IKKA in the nucleus, causing the phosphorylation of p53/TP53. In the case of ER stress or DNA damage-induced apoptosis, can form a complex with the tyrosine-protein kinase ABL1 which trigger apoptosis independently of p53/TP53. In cytosol can trigger apoptosis by activating MAPK11 or MAPK14, inhibiting AKT1 and decreasing the level of X-linked inhibitor of apoptosis protein (XIAP), whereas in nucleus induces apoptosis via the activation of MAPK8 or MAPK9. Upon ionizing radiation treatment, is required for the activation of the apoptosis regulators BAX and BAK, which trigger the mitochondrial cell death pathway. Can phosphorylate MCL1 and target it for degradation which is sufficient to trigger for BAX activation and apoptosis. Is required for the control of cell cycle progression both at G1/S and G2/M phases. Mediates phorbol 12-myristate 13-acetate (PMA) - induced inhibition of cell cycle progression at G1/S phase by up- regulating the CDK inhibitor CDKN1A/p21 and inhibiting the cyclin CCNA2 promoter activity. In response to UV irradiation can phosphorylate CDK1, which is important for the G2/M DNA damage checkpoint activation. Can protect glioma cells from the apoptosis induced by TNFSF10/TRAIL, probably by inducing increased phosphorylation and subsequent activation of AKT1. Is highly expressed in a number of cancer cells and promotes cell survival and resistance against chemotherapeutic drugs by inducing cyclin D1 (CCND1) and hyperphosphorylation of RB1, and via several pro- survival pathways, including NF-kappa-B, AKT1 and MAPK1/3 (ERK1/2) . Can also act as tumor suppressor upon mitogenic stimulation with PMA or TPA. In N-formyl-methionyl-leucyl- phenylalanine (fMLP) -treated cells, is required for NCF1 (p47- phox) phosphorylation and activation of NADPH oxidase activity, and regulates TNF-elicited superoxide anion production in neutrophils, by phosphorylation and activation of NCF1 or inly through MAPK1/3 (ERK1/2) signaling pathways. May also play a role in the regulation of NADPH oxidase activity in eosinophil after stimulation with IL5, leukotriene B4 or PMA. In collagen-induced platelet aggregation, acts a negative regulator of filopodia formation and actin polymerization by interacting with and negatively regulating VASP phosphorylation. Downstream of PAR1, PAR4 and CD36/GP4 receptors, regulates differentially platelet dense granule secretion; acts as a positive regulator in PAR-mediated granule secretion, whereas it negatively regulates CD36/GP4-mediated granule release. Phosphorylates MUC1 in the C- terminal and regulates the interaction between MUC1 and beta- catenin. The catalytic subunit phosphorylates 14-3-3 proteins (YWHAB, YWHAZ and YWHAH) in a sphingosine-dependent fashion (By similarity) . .

1. Qu, Y., Misaghi, S., Izrael-Tomasevic, A., Newton, K., Gilmour, L. L., Lamkanfi, M., Louie, S., Kayagaki, N., Liu, J., Komuves, L., Cupp, J. E., Arnott, D., Monack, D., Dixit, V. M.Phosphorylation of NLRC4 is critical for inflammasome activation. Nature 490: 539-542, 2012. 2. Salzer, E., Santos-Valente, E., Klaver, S., Ban, S. A., Emminger, W., Prengemann, N. K., Garncarz, W., Mullauer, L., Kain, R., Boztug, H., Heitger, A., Arbeiter, K., Eitelberger, F., Seidel, M. G., Holter, W., Pollak, A., Pickl, W. F., Forster-Waldl, E., Boztug, K. B-cell deficiency and severe autoimmunity caused by deficiency of protein kinase C-delta. Blood 121: 3112-3116, 2013. 3. Tu, X., Joeng, K. S., Nakayama, K. I., Nakayama, K., Rajagopal, J., Carroll, T. J., McMahon, A. P., Long, F. Noncanonical Wnt signaling through G protein-linked PKC-delta activation promotes bone formation. Dev. Cell 12: 113-127, 2007.

Store 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 freeze-thaw cycles.