Seroatlas · Human Serome Atlas

PRKG2

cGMP-dependent protein kinase 2

Also known as: cGKII, KGP2_HUMAN, PKG2, PRKGR2

Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene

Protein identityUniProt · HPA

UniProt accession
Q13237
Gene
PRKG2
Ensembl
ENSG00000138669
Chromosome
4
Canonical length
762 aa
Protein class
Disease related genes, Enzymes, Human disease related genes, Potential drug targets, Predicted intracellular proteins

OverviewNCBI Gene

This gene encodes a protein that belongs to the serine/threonine protein kinase family of proteins. The encoded protein binds to and inhibits the activation of several receptor tyrosine kinases. The membrane-bound protein is a regulator of intestinal secretion, bone growth and renin secretion. Alternate splicing results in multiple transcript variants encoding distinct isoforms whose regulatory N-termini differ in length but whose C-terminal catalytic domains are identical. [provided by RefSeq, May 2018]

Canonical amino-acid sequenceUniProt

762 residues, UniProt reviewed canonical sequence.

>Q13237|PRKG2
     1  MGNGSVKPKH SKHPDGHSGN LTTDALRNKV TELERELRRK DAEIQEREYH LKELREQLSK
    61  QTVAIAELTE ELQNKCIQLN KLQDVVHMQG GSPLQASPDK VPLEVHRKTS GLVSLHSRRG
   121  AKAGVSAEPT TRTYDLNKPP EFSFEKARVR KDSSEKKLIT DALNKNQFLK RLDPQQIKDM
   181  VECMYGRNYQ QGSYIIKQGE PGNHIFVLAE GRLEVFQGEK LLSSIPMWTT FGELAILYNC
   241  TRTASVKAIT NVKTWALDRE VFQNIMRRTA QARDEQYRNF LRSVSLLKNL PEDKLTKIID
   301  CLEVEYYDKG DYIIREGEEG STFFILAKGK VKVTQSTEGH DQPQLIKTLQ KGEYFGEKAL
   361  ISDDVRSANI IAEENDVACL VIDRETFNQT VGTFEELQKY LEGYVANLNR DDEKRHAKRS
   421  MSNWKLSKAL SLEMIQLKEK VARFSSSSPF QNLEIIATLG VGGFGRVELV KVKNENVAFA
   481  MKCIRKKHIV DTKQQEHVYS EKRILEELCS PFIVKLYRTF KDNKYVYMLL EACLGGELWS
   541  ILRDRGSFDE PTSKFCVACV TEAFDYLHRL GIIYRDLKPE NLILDAEGYL KLVDFGFAKK
   601  IGSGQKTWTF CGTPEYVAPE VILNKGHDFS VDFWSLGILV YELLTGNPPF SGVDQMMTYN
   661  LILKGIEKMD FPRKITRRPE DLIRRLCRQN PTERLGNLKN GINDIKKHRW LNGFNWEGLK
   721  ARSLPSPLQR ELKGPIDHSY FDKYPPEKGM PPDELSGWDK DF

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against PRKG2 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)
0.31
Highest tissue expression
13 nTPM

Expression across tissuesHPA

Tissue

  • small intestine: 13 nTPM
  • duodenum: 9.5 nTPM
  • prostate: 9.3 nTPM
  • heart muscle: 4.1 nTPM
  • lung: 3.3 nTPM
  • seminal vesicle: 3.3 nTPM

Single-cell type

  • hematopoietic stem cells: 525 nCPM
  • oligodendrocyte progenitor cells: 183 nCPM
  • prostatic glandular cells: 104 nCPM
  • enterocytes: 96 nCPM
  • megakaryocyte-erythroid progenitors: 83 nCPM
  • thyrotrophs: 72 nCPM

Immune cell

  • basophil: 0.4 nTPM
  • MAIT T-cell: 0.4 nTPM
  • memory CD4 T-cell: 0.1 nTPM
  • naive CD4 T-cell: 0.1 nTPM
  • naive CD8 T-cell: 0.1 nTPM
  • NK-cell: 0.1 nTPM

Brain region

  • thalamus: 14 nTPM
  • pons: 9.2 nTPM
  • midbrain: 6.8 nTPM
  • spinal cord: 6.1 nTPM
  • medulla oblongata: 5.9 nTPM
  • amygdala: 5.6 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about PRKG2.

Disease | AllUniProt

Conditions PRKG2 is implicated in, by any mechanism.

Disease | GeneticClinVar

9 pathogenic / likely-pathogenic of 114 ClinVar records.

Conditions with pathogenic or likely-pathogenic variants.

Disease | ImmuneIEDB

Conditions an epitope on PRKG2 was assayed in.

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)
0.37
gnomAD pLI
0.65
gnomAD missense Z
2.99
DepMap mean gene effect
0
DepMap dependency class
selective

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 4% 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 PRKG2 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 PRKG2 as an antibody target. Whether an autoantibody or antibody against PRKG2 could matter depends on whether native PRKG2 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

PRKG2 is annotated at the cell surface, where native PRKG2 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 PRKG2 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/PRKG2. 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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