CAMK2D
Calcium/calmodulin-dependent protein kinase type II subunit delta
Also known as: CAMKD, KCC2D_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q13557
- Gene
- CAMK2D
- Ensembl
- ENSG00000145349
- Chromosome
- 4
- Canonical length
- 499 aa
- Protein class
- Enzymes, Plasma proteins, Predicted intracellular proteins, Predicted membrane proteins
- Subcellular location
- Plasma membrane,Cell Junctions,Primary cilium tip,Primary cilium transition zone,Perinuclear theca,Calyx,Connecting piece,Principal piece,End piece
OverviewNCBI Gene
The product of this gene belongs to the serine/threonine protein kinase family and to the Ca(2+)/calmodulin-dependent protein kinase subfamily. Calcium signaling is crucial for several aspects of plasticity at glutamatergic synapses. In mammalian cells, the enzyme is composed of four different chains: alpha, beta, gamma, and delta. The product of this gene is a delta chain. Alternative splicing results in multiple transcript variants encoding distinct isoforms. Distinct isoforms of this chain have different expression patterns.[provided by RefSeq, Nov 2008]
Canonical amino-acid sequenceUniProt
499 residues, UniProt reviewed canonical sequence.
>Q13557|CAMK2D
1 MASTTTCTRF TDEYQLFEEL GKGAFSVVRR CMKIPTGQEY AAKIINTKKL SARDHQKLER
61 EARICRLLKH PNIVRLHDSI SEEGFHYLVF DLVTGGELFE DIVAREYYSE ADASHCIQQI
121 LESVNHCHLN GIVHRDLKPE NLLLASKSKG AAVKLADFGL AIEVQGDQQA WFGFAGTPGY
181 LSPEVLRKDP YGKPVDMWAC GVILYILLVG YPPFWDEDQH RLYQQIKAGA YDFPSPEWDT
241 VTPEAKDLIN KMLTINPAKR ITASEALKHP WICQRSTVAS MMHRQETVDC LKKFNARRKL
301 KGAILTTMLA TRNFSAAKSL LKKPDGVKES TESSNTTIED EDVKARKQEI IKVTEQLIEA
361 INNGDFEAYT KICDPGLTAF EPEALGNLVE GMDFHRFYFE NALSKSNKPI HTIILNPHVH
421 LVGDDAACIA YIRLTQYMDG SGMPKTMQSE ETRVWHRRDG KWQNVHFHRS GSPTVPIKPP
481 CIPNGKENFS GGTSLWQNILocalizationUniProt · AlphaFold · HPA
Whether an antibody against CAMK2D can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.
- Antibody reachability
- Cell surface
- Secreted
- No
- Transmembrane segments
- 0
- Mean surface accessibility (rSASA)
- 0.3
- Highest tissue expression
- 124 nTPM
Expression across tissuesHPA
Tissue
- heart muscle: 124 nTPM
- skeletal muscle: 90 nTPM
- cerebellum: 68 nTPM
- retina: 53 nTPM
- cerebral cortex: 46 nTPM
- parathyroid gland: 46 nTPM
Single-cell type
- myonuclei: 1,130 nCPM
- sertoli cells: 1,042 nCPM
- cardiomyocytes: 966 nCPM
- cone photoreceptor cells: 853 nCPM
- tuft cells: 772 nCPM
- rod photoreceptor cells: 734 nCPM
Immune cell
- naive B-cell: 20 nTPM
- myeloid DC: 14 nTPM
- T-reg: 12 nTPM
- MAIT T-cell: 12 nTPM
- classical monocyte: 11 nTPM
- memory B-cell: 10 nTPM
Brain region
- cerebral cortex: 138 nTPM
- amygdala: 126 nTPM
- thalamus: 109 nTPM
- basal ganglia: 108 nTPM
- cerebellum: 94 nTPM
- midbrain: 83 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about CAMK2D.
Disease | GeneticClinVar
9 pathogenic / likely-pathogenic of 86 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Neurodevelopmental disorder
- CAMK2D-related disorder
- CAMK2D-related condition
- See cases
- CAMK2D-related neurodevelopmental disorder and dilated cardiomyopathy
Genetic constraint and essentialitygnomAD · DepMap
Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.
- gnomAD LOEUF (loss-of-function intolerance)
- 0.54
- gnomAD pLI
- 0
- gnomAD missense Z
- 3.11
- DepMap mean gene effect
- 0.04
- DepMap dependency class
- none
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 3% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- cardiac muscle cell contraction
- cellular response to calcium ion
- endoplasmic reticulum calcium ion homeostasis
- long-term synaptic potentiation
- negative regulation of sodium ion transmembrane transport
- positive regulation of cardiac muscle cell apoptotic process
- positive regulation of cardiac muscle hypertrophy
- protein phosphorylation
- regulation of calcium ion transmembrane transport via high voltage-gated calcium channel
- regulation of cardiac muscle cell action potential
- regulation of cardiac muscle cell action potential involved in regulation of contraction
- regulation of cardiac muscle contraction by regulation of the release of sequestered calcium ion
- regulation of cell communication by electrical coupling
- regulation of cell communication by electrical coupling involved in cardiac conduction
- regulation of cell growth
- regulation of cellular localization
- regulation of heart contraction
- regulation of heart rate by cardiac conduction
- regulation of membrane depolarization
- regulation of neuronal synaptic plasticity
- regulation of protein localization to plasma membrane
- regulation of relaxation of cardiac muscle
- regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum
- regulation of ryanodine-sensitive calcium-release channel activity
- regulation of the force of heart contraction
- regulation of transcription by RNA polymerase II
- relaxation of cardiac muscle
Molecular functions
- ATP binding
- calcium/calmodulin-dependent protein kinase activity
- calmodulin binding
- identical protein binding
- protein homodimerization activity
- protein serine kinase activity
- protein serine/threonine kinase activity
- sodium channel inhibitor activity
- titin binding
- transmembrane transporter binding
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Protein kinase domain
- Serine/threonine-protein kinase, active site
- Protein kinase-like domain superfamily
- Calcium/calmodulin-dependent protein kinase II, association-domain
- Protein kinase, ATP binding site
- NTF2-like domain superfamily
- Protein kinase domain
- Calcium/calmodulin dependent protein kinase II association domain
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of CAMK2D in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads CAMK2D as an antibody target. Whether an autoantibody or antibody against CAMK2D could matter depends on whether native CAMK2D is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
CAMK2D is annotated at the cell surface, where native CAMK2D is exposed to circulating antibodies and is a prime autoantibody target that could block, deplete, or overstimulate it.
Annotation status
The present source text does not explicitly label CAMK2D as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
Loading the interactive Seroatlas protein explorer...