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0KPCB_HUMAN*   SwissProt (?) | Description Local Annotation Link Reference
General Information
NamePRKCB1
DescriptionProtein kinase c, beta type (ec 2.7.1.37) (pkc-beta) (pkc-b).
SpeciesHomo sapiens (NCBI taxonomy ID: 9606)
GO0005737 cytoplasm (TAS)
0005886 plasma membrane (TAS)
0004697 protein kinase C activity (TAS)
0006468 protein amino acid phosphorylation (TAS)
0007165 signal transduction (NAS)

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schematic display of those terms with internal associations, click the node and browse the corresponding GO term
Domain Architecture (Details)
InterPro domains unassigned to SynO:
Eukaryotic protein kinases are enzymesthat belong to a very extensive family of proteins which share a conserved catalytic core common withboth serine/threonine and tyrosine protein kinases. There are a number of conserved regions in thecatalytic domain of protein kinases. In the N-terminal extremity of the catalytic domain there is aglycine-rich stretch of residues in the vicinity of a lysine residue.hich has been shown to be involvedin ATP binding. In the central part of the catalytic domain there is a conserved aspartic acid residuewhich is important for the catalytic activity of the enzyme . CAUTION: Despite SMART having created two different HMMs for Serine/Threonine protein kinase and for Tyrosine protein kinase.arge number of proteins match both signatures.s SMART considers it to be natural for these two closely related families.
  IPR002290:Serine/threonine protein kinase
Eukaryotic protein kinases are enzymesthat belong to a very extensive family of proteins which share a conserved catalytic core common withboth serine/threonine and tyrosine protein kinases. There are a number of conserved regions in thecatalytic domain of protein kinases. In the N-terminal extremity of the catalytic domain there is aglycine-rich stretch of residues in the vicinity of a lysine residue.hich has been shown to be involvedin ATP binding. In the central part of the catalytic domain there is a conserved aspartic acid residuewhich is important for the catalytic activity of the enzyme . This entry includes protein kinases from eukaryotes and viruses and may include some bacterial hits too.
  IPR000719:Protein kinase
The C2 domain is a Ca2+-dependent membrane-targeting module found in many cellular proteins involved in signal transduction or membrane trafficking. C2 domains are unique among membrane targeting domains in that they show wide range of lipid selectivity for the major components of cell membranes.ncluding phosphatidylserine and phosphatidylcholine. This C2 domain is about 116 amino-acid residues and is located between the two copies ofthe C1 domain in Protein Kinase C (that bind phorbol esters and diacylglycerol) (see )and the protein kinase catalytic domain (see ). Regions withsignificant homology to the C2-domain have been found in many proteins.The C2 domain is thought to be involved in calcium-dependent phospholipidbinding and in membrane targetting processes such as subcellular localisation. The 3D structure of theC2 domain of synaptotagmin has been reported.he domain forms an eight-stranded beta sandwich constructed around a conserved 4-stranded motif.esignated a C2 key . Calcium binds ina cup-shaped depression formed by the N- and C-terminal loops of theC2-key motif. Structural analyses of several C2 domains have shown them to consist of similar ternary structures in which three Ca2+-binding loops are located at the end of an 8 stranded antiparallel beta sandwich.
  IPR000008:C2 calcium-dependent membrane targeting
Diacylglycerol (DAG) is an important second messenger. Phorbol esters (PE) are analogues of DAG and potent tumor promoters that cause a variety of physiological changes when administered to both cells and tissues. DAG activates a family of serine/threonine protein kinases.ollectively known as protein kinase C (PKC) . Phorbol esters can directly stimulate PKC. The N-terminal region of PKC.nown as C1.as been shown to bind PE and DAG in a phospholipid and zinc-dependent fashion. The C1 region contains one or two copies (depending on the isozyme of PKC) of a cysteine-rich domain.hich is about 50 amino-acid residues long.nd which is essential for DAG/PE-binding. The DAG/PE-binding domain binds two zinc ions; the ligands of these metal ions are probably the six cysteines and two histidines that are conserved in this domain.
  IPR002219:Protein kinase C, phorbol ester/diacylglycerol binding
Protein kinases are responsible for the phosphorylation of proteins.otentially for regulating their activity. This domain is found in a large variety of protein kinases with different functions and dependencies. Protein kinase C.or example.s a calcium-activated.hospholipid-dependent serine- and threonine-specific enzyme. It is activated by diacylglycerol which.n turn.hosphorylates a range ofcellular proteins. This domain is most often found associated with .
  IPR000961:Protein kinase, C-terminal
The Ca2+-dependent.ipid-binding domain (CaLB) has been identified in a number of proteins.or example the amino-terminal.38 amino acid C2 domain of cytosolic phospholipase A2 (cPLA2-C2) which mediates an initial step in the production of lipid mediators of inflammation: the Ca2+-dependent translocation of the enzyme to intracellular membranes with subsequent liberation of arachidonic acid. The domain is composed of eight antiparallel beta-strands with six interconnecting loops that fits the "type II" topology for C2 domains. The structure has been identified as a beta-sandwich in the "Greek key" motif .The SSF signature in this entry is currently under review. Please be aware that some of the protein hits may be false positives.
  IPR008973:C2 calcium/lipid-binding region, CaLB
IPR002290:S_TKc 
Evalue:-96.3467874862246 
Location:341-599IPR000008:C2 
Evalue:-35.7958793640137 
Location:172-259IPR000961:S_TK_X 
Evalue:-26.0043648054024 
Location:600-663IPR002219:C1_1 
Evalue:-25.3665313720703 
Location:101-153IPR002219:C1_1 
Evalue:-20.1870861053467 
Location:36-88
SequencesProtein: KPCB_HUMAN (670 aa)
mRNA: NM_212535
Local Annotation
Synapse Ontology
transport of vesicles in the presynaptic neuron
sdb:0017 Mobilization: synapsins, CAM kinase I  (Evidence:keywords)
A process that increases long-term neuronal synaptic plasticity, the ability of neuronal synapses to change long-term as circumstances require. Long-term neuronal synaptic plasticity generally involves increase or decrease in actual synapse numbers.
sdb:0039 positive regulation of long-term neuronal synaptic plasticity  (Evidence:keywords)
activation of protein kinase C
sdb:0206 activation of protein kinase C  (Evidence:keywords)
the mechanism by which the restiong potential is held.
sdb:0288 maintain membrane potential  (Evidence:keywords)
KO assignmentK02677
  Level 3 annotation:
    classical protein kinase C
  Level 2 annotation:
    MAPK signaling pathway
    Wnt signaling pathway
    Calcium signaling pathway
    Phosphatidylinositol signaling system
    Focal adhesion
    Tight junction
    Gap junction
    Natural killer cell mediated cytotoxicity
    Leukocyte transendothelial migration
    Long-term potentiation
    Long-term depression
Loci Structure (Details)Loci index, Chromosomal location, Length, Possible relational loci clusterExon1: 117 residues, 23754822-23755170Exon2: 12 residues, 23756196-23756228Exon3: 29 residues, 23907329-23907412Exon4: 39 residues, 23950957-23951069Exon5: 45 residues, 23954240-23954369Exon6: 54 residues, 24011612-24011769Exon7: 47 residues, 24012984-24013119Exon8: 34 residues, 24031794-24031891Exon9: 51 residues, 24042656-24042803Exon10: 60 residues, 24073505-24073679Exon11: 32 residues, 24091091-24091183Exon12: 23 residues, 24093339-24093402Exon13: 48 residues, 24099611-24099750Exon14: 29 residues, 24103932-24104013Exon15: 38 residues, 24104281-24104389Exon16: 49 residues, 24109911-24110052Exon17: 95 residues, 24138782-24139063Exon18: 2 residues, -Jump to KPCB_HUMAN  
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