regulation of synaptic vesicle docking / HSF1-dependent transactivation / RAF activation / Ion transport by P-type ATPases / peptidyl-threonine autophosphorylation / calcium- and calmodulin-dependent protein kinase complex / neurotransmitter receptor transport to plasma membrane / regulation of endocannabinoid signaling pathway / Interferon gamma signaling / Ca2+/calmodulin-dependent protein kinase ...regulation of synaptic vesicle docking / HSF1-dependent transactivation / RAF activation / Ion transport by P-type ATPases / peptidyl-threonine autophosphorylation / calcium- and calmodulin-dependent protein kinase complex / neurotransmitter receptor transport to plasma membrane / regulation of endocannabinoid signaling pathway / Interferon gamma signaling / Ca2+/calmodulin-dependent protein kinase / dendritic spine development / negative regulation of hydrolase activity / regulation of neurotransmitter secretion / Trafficking of AMPA receptors / positive regulation of calcium ion transport / regulation of neuron migration / Ca2+ pathway / calcium/calmodulin-dependent protein kinase activity / GTPase activating protein binding / RAF/MAP kinase cascade / regulation of mitochondrial membrane permeability involved in apoptotic process / Ion homeostasis / dendrite morphogenesis / regulation of neurotransmitter receptor localization to postsynaptic specialization membrane / regulation of neuronal synaptic plasticity / glutamate receptor binding / Unblocking of NMDA receptors, glutamate binding and activation / postsynaptic cytosol / positive regulation of cardiac muscle cell apoptotic process / regulation of protein localization to plasma membrane / cellular response to interferon-beta / presynaptic cytosol / ionotropic glutamate receptor signaling pathway / dendrite cytoplasm / response to ischemia / angiotensin-activated signaling pathway / positive regulation of receptor signaling pathway via JAK-STAT / G1/S transition of mitotic cell cycle / cellular response to type II interferon / Schaffer collateral - CA1 synapse / kinase activity / calcium ion transport / dendritic spine / calmodulin binding / neuron projection / postsynaptic density / axon / protein serine kinase activity / neuronal cell body / protein serine/threonine kinase activity / synapse / dendrite / glutamatergic synapse / protein homodimerization activity / mitochondrion / ATP binding / metal ion binding / identical protein binding / cytoplasm / cytosol 類似検索 - 分子機能
Calcium/calmodulin-dependent protein kinase II, association-domain / Calcium/calmodulin dependent protein kinase II association domain / NTF2-like domain superfamily / Serine/threonine-protein kinase, active site / Serine/Threonine protein kinases active-site signature. / Protein kinase domain / Serine/Threonine protein kinases, catalytic domain / Protein kinase, ATP binding site / Protein kinases ATP-binding region signature. / Protein kinase domain profile. ...Calcium/calmodulin-dependent protein kinase II, association-domain / Calcium/calmodulin dependent protein kinase II association domain / NTF2-like domain superfamily / Serine/threonine-protein kinase, active site / Serine/Threonine protein kinases active-site signature. / Protein kinase domain / Serine/Threonine protein kinases, catalytic domain / Protein kinase, ATP binding site / Protein kinases ATP-binding region signature. / Protein kinase domain profile. / Protein kinase domain / Protein kinase-like domain superfamily 類似検索 - ドメイン・相同性
Calcium/calmodulin-dependent protein kinase type II subunit alpha 類似検索 - 構成要素
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)
R01NS081248
米国
引用
ジャーナル: Nat Commun / 年: 2017 タイトル: The CaMKII holoenzyme structure in activation-competent conformations. 著者: Janette B Myers / Vincent Zaegel / Steven J Coultrap / Adam P Miller / K Ulrich Bayer / Steve L Reichow / 要旨: The Ca/calmodulin-dependent protein kinase II (CaMKII) assembles into large 12-meric holoenzymes, which is thought to enable regulatory processes required for synaptic plasticity underlying learning, ...The Ca/calmodulin-dependent protein kinase II (CaMKII) assembles into large 12-meric holoenzymes, which is thought to enable regulatory processes required for synaptic plasticity underlying learning, memory and cognition. Here we used single particle electron microscopy (EM) to determine a pseudoatomic model of the CaMKIIα holoenzyme in an extended and activation-competent conformation. The holoenzyme is organized by a rigid central hub complex, while positioning of the kinase domains is highly flexible, revealing dynamic holoenzymes ranging from 15-35 nm in diameter. While most kinase domains are ordered independently, ∼20% appear to form dimers and <3% are consistent with a compact conformation. An additional level of plasticity is revealed by a small fraction of bona-fide 14-mers (<4%) that may enable subunit exchange. Biochemical and cellular FRET studies confirm that the extended state of CaMKIIα resolved by EM is the predominant form of the holoenzyme, even under molecular crowding conditions.