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  Domain Name: C2_PKN-like
C2 domain in Protein kinase C-like (PKN) proteins. PKN is a lipid-activated serine/threonine kinase. It is a member of the protein kinase C (PKC) superfamily, but lacks a C1 domain. There are at least 3 different isoforms of PKN (PRK1/PKNalpha/PAK1; PKNbeta, and PRK2/PAK2/PKNgamma). The C-terminal region contains the Ser/Thr type protein kinase domain, while the N-terminal region of PKN contains three antiparallel coiled-coil (ACC) finger domains which are relatively rich in charged residues and contain a leucine zipper-like sequence. These domains binds to the small GTPase RhoA. Following these domains is a C2-like domain. Its C-terminal part functions as an auto-inhibitory region. PKNs are not activated by classical PKC activators such as diacylglycerol, phorbol ester or Ca2+, but instead are activated by phospholipids and unsaturated fatty acids. The C2 domain was first identified in PKC. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions.
No pairwise interactions are available for this conserved domain.

Total Mutations Found: 1
Total Disease Mutations Found: 0
This domain occurred 3 times on human genes (3 proteins).

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 The histograms below the weblogo indicate mutations found on the domain. Red is for disease (OMIM) and blue is for SNPs.

 Functional Features are displayed as orange boxes under the histograms. You can choose which features are displayed in the box below.

Range on the Protein:  

   Protein ID            Protein Position

Domain Position:  

No Conserved Features/Sites Found for C2_PKN-like

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Please Cite: Peterson, T.A., Adadey, A., Santana-Cruz ,I., Sun, Y., Winder A, Kann, M.G., (2010) DMDM: Domain Mapping of Disease Mutations. Bioinformatics 26 (19), 2458-2459.

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