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PKN1

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For Research Use Only. Not For Clinical Use.


Background

The protein encoded by this gene belongs to the protein kinase C superfamily. This kinase is activated by Rho family of small G proteins and may mediate the Rho-dependent signaling pathway. This kinase can be activated by phospholipids and by limited proteolysis. The 3-phosphoinositide dependent protein kinase-1 (PDPK1/PDK1) is reported to phosphorylate this kinase, which may mediate insulin signals to the actin cytoskeleton. The proteolytic activation of this kinase by caspase-3 or related proteases during apoptosis suggests its role in signal transduction related to apoptosis. Alternatively spliced transcript variants encoding distinct isoforms have been observed.
Protein class

Enzymes, Metabolic proteins

Predicted location

Intracellular

Single cell type specificity

Cell type enhanced (NK-cells)

Immune cell specificity

Low immune cell specificity

Cell line specificity

Low cell line specificity

Interaction

Interacts with ZFAND6 (By similarity). Interacts with AR (PubMed:12514133). Interacts with PRKCB (PubMed:20228790). Interacts (via REM 1 and REM 2 repeats) with RAC1 (PubMed:14514689, 18006505). Interacts (via REM 1 repeat) with RHOA (PubMed:10619026, 8571126). Interacts with RHOB (PubMed:9478917). Interacts (via C-terminus) with PDPK1 (PubMed:10792047). Interacts with CCNT2; enhances MYOD1-dependent transcription (PubMed:16331689). Component of a signaling complex containing at least AKAP13, PKN1, MAPK14, ZAK and MAP2K3. Within this complex, AKAP13 interacts directly with PKN1, which in turn recruits MAPK14, MAP2K3 and ZAK (PubMed:21224381). (Microbial infection) Interacts (via the second REM repeat) with S. typhimurium E3 ubiquitin-protein ligase SspH1 (via the leucine-rich repeat region) (PubMed:16611232, 24248594).

Molecular function

Chromatin regulator, Kinase, Serine/threonine-protein kinase, Transferase

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