Summary

Name CAMK2D
Full Name Calcium/calmodulin-dependent protein kinase type II subunit delta
Synonyms CaM kinase II subunit delta, CaMK-II subunit delta | CAMKD
Primary ID Q13557
Links - -
Type protein
Relations 24
Pathways Myofiber: Calcium-mediated fusion
Function Calcium/calmodulin-dependent protein kinase involved in the regulation of Ca(2+) homeostatis and excitation-contraction coupling (ECC) in heart by targeting ion channels, transporters and accessory proteins involved in Ca(2+) influx into the myocyte, Ca(2+) release from the sarcoplasmic reticulum (SR), SR Ca(2+) uptake and Na(+) and K(+) channel transport. Targets also transcription factors and signaling molecules to regulate heart function. In its activated form, is involved in the pathogenesis of dilated cardiomyopathy and heart failure. Contributes to cardiac decompensation and heart failure by regulating SR Ca(2+) release via direct phosphorylation of RYR2 Ca(2+) channel on 'Ser-2808'. In the nucleus, phosphorylates the MEF2 repressor HDAC4, promoting its nuclear export and binding to 14-3-3 protein, and expression of MEF2 and genes involved in the hypertrophic program. Is essential for left ventricular remodeling responses to myocardial infarction. In pathological myocardial remodeling acts downstream of the beta adrenergic receptor signaling cascade to regulate key proteins involved in ECC. Regulates Ca(2+) influx to myocytes by binding and phosphorylating the L-type Ca(2+) channel subunit beta-2 CACNB2. In addition to Ca(2+) channels, can target and regulate the cardiac sarcolemmal Na(+) channel Nav1.5/SCN5A and the K+ channel Kv4.3/KCND3, which contribute to arrhythmogenesis in heart failure. Phosphorylates phospholamban (PLN/PLB), an endogenous inhibitor of SERCA2A/ATP2A2, contributing to the enhancement of SR Ca(2+) uptake that may be important in frequency-dependent acceleration of relaxation (FDAR) and maintenance of contractile function during acidosis. May participate in the modulation of skeletal muscle function in response to exercise, by regulating SR Ca(2+) transport through phosphorylation of PLN/PLB and triadin, a ryanodine receptor-coupling factor.

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Modifications Tables

Relations

Regulator Mechanism target score
+ down-regulates activity img/direct_inhibition.png phosphorylation ANKRD28 0.2
Publications: 1 Organism: In Vitro
+ down-regulates activity img/direct_inhibition.png phosphorylation ITPR2 0.313
Publications: 1 Organism: Chlorocebus Aethiops
+ img/unknown.png phosphorylation TPD52 0.2
Publications: 2 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation SCN5A 0.48
Publications: 5 Organism: , Homo Sapiens
+ up-regulates img/direct-activation.png phosphorylation HDAC4 0.365
Publications: 1 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png phosphorylation KCNQ1 0.2
Publications: 1
+ down-regulates img/direct_inhibition.png phosphorylation SCN5A 0.48
Publications: 2 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation SCN8A 0.285
Publications: 3 Organism: Homo Sapiens
+ img/unknown.png phosphorylation VIM 0.333
Publications: 1
+ down-regulates img/direct_inhibition.png phosphorylation KCNJ11 0.2
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png phosphorylation CEACAM1 0.2
Publications: 1 Organism: Homo Sapiens
Tissue: Breast
+ up-regulates img/direct-activation.png phosphorylation CACNB2 0.399
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png phosphorylation CAMK2D 0.2
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/indirect-activation.png Myoblast_fusion 0.7
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/indirect-activation.png MEF2A 0.43
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png chemical activation CAMK2D 0.8
Publications: 1 Organism: Homo Sapiens