Seroatlas · Human Serome Atlas

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 GGTSLWQNI

LocalizationUniProt · 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.

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

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

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.

Canonical record: https://seroatlas.com/gene/CAMK2D. Study-independent annotations aggregated from UniProt, Human Protein Atlas, PubMed, IEDB, Pfam, InterPro, Gene Ontology, AlphaFold, gnomAD, DepMap, ClinVar, TCGA. Catalog release seroatlas-reviewed-human-uniprot-20260313.

Seroatlas is the reference for exploring autoantibody and antibody serology at the human-protein level: the autoreactome and human serome, multiplex serology (HuProt, HuScan, VirScan, PhIP-Seq).

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