PKCmu, Active | 7745

Protein kinase Cmu (PKCmu) is a novel member of the protein kinase C (PKC) family that differs from the other isoenzymes in structural and enzymatic properties. It is characterized by the presence of a pleckstrin homology (PH) domain and an amino-terminal hydrophobic region and has substrate specificity distinct from other PKC isoforms. PKCmu is a ubiquitous PKC isotype with the highest expression in the thymus, lung and peripheral blood mononuclear cells (1). PKCmu forms a complex in vivo with a phosphatidylinositol 4-kinase and a phosphatidylinositol-4-phosphate 5-kinase. A region of PKCmu between the amino-terminal transmembrane domain and the pleckstrin homology domain is shown to be involved in the association with the lipid kinases (2). PKCmu was also shown to associate with the B cell receptor (BCR) complex and its activity is up-regulated after cross-linking the BCR and CD19 on B cells (3). PKC mu co-precipitates with Syk and phospholipase C- 1/2 (PLC 1/2) and in vitro phosphorylation of fusion proteins showed that both Syk and PLC 1 are potential substrates of PKC mu in vivo. In addition, specific interaction of PKCmu and 14-3-3tau can be shown in the T cell line Jurkat by immunocoprecipitiation and by pulldown assays (4). 14-3-3tau is not a substrate of PKCmu and strongly down-regulates PKCmu kinase activity in vitro. In response to various stimuli, PKC mu activates the mitogen-activated protein kinase (p42/ERK1 MAPK cascade) but does not affect the related c-jun N-terminal kinase or p38 MAPK (5).

7745 | PKCmu Active DataSheet

Biomolecule/Target: N/A

Synonyms: PKC, Protein kinase C mu

Alternates names: PKC, Protein kinase C mu

Taglines: Involved in regulation of glycogen, sugar, and lipid metabolism

NCBI Gene ID #: 4908

NCBI Gene Symbol: NTF3

Gene Source: N/A

Accession #: P20783

Recombinant: Yes

Source: Baculovirus (Sf9 insect cells)

Purity by SDS-PAGEs: 98%

Assay: SDS-PAGE

Purity: N/A

Assay #2: HPLC

Endotoxin Level: N/A

Activity (Specifications/test method): 680 nmol phosphate incorporated into CREBTIDE substrate peptide per minute per mg protein at 30°C for 15 minutes using a final concentration of 50 µM ATP (0.83 µCi/assay).

Biological activity: The ED as determined by the dose-dependent induction of choline acetyl transferase activity in rat basal forebrain primary septal cell cultures was found to be in the range of 20-50 ng/ml.

Results: N/A

Binding Capacity: N/A

Unit Definition: N/A

Molecular Weight: 131.0 kDa

Concentration: 5µg/50 µl

Appearance: Liquid

Physical form description: Recombinant proteins in storage buffer (50 mM Tris-HCl, pH 7.5, 150 mM NaCl, 0.25 mM DTT, 0.1 mM EGTA, 0.1 mM EDTA, 0.1 mM PMSF, 25% glycerol).

Reconstitution Instructions: Reconstitute in HO to a concentration of 0.1-1.0 mg/ml.

Amino acid sequence: N/A