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 DFLocalizationUniProt · 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.
- Spondylometaphyseal dysplasia, Pagnamenta type (SMDP) MIM:619638
- Acromesomelic dysplasia 4 (AMD4) MIM:619636
Disease | GeneticClinVar
9 pathogenic / likely-pathogenic of 114 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Acromesomelic dysplasia 4
- Spondylometaphyseal dysplasia, pagnamenta type
Disease | ImmuneIEDB
Conditions an epitope on PRKG2 was assayed in.
- narcolepsy B cell
- multiple sclerosis B cell
- peripheral nervous system disease B cell
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
- intracellular signal transduction
- negative regulation of chloride transport
- positive regulation of chondrocyte differentiation
- positive regulation of protein localization
- protein localization to plasma membrane
- signal transduction
- tetrahydrobiopterin metabolic process
Molecular functions
- ATP binding
- cGMP binding
- cGMP-dependent protein kinase activity
- identical protein binding
- mitogen-activated protein kinase binding
- protein serine kinase activity
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Cyclic nucleotide-binding domain
- Protein kinase domain
- AGC-kinase, C-terminal
- cGMP-dependent kinase
- Serine/threonine-protein kinase, active site
- Protein kinase-like domain superfamily
- RmlC-like jelly roll fold
- Protein kinase, ATP binding site
- Cyclic nucleotide-binding, conserved site
- Cyclic nucleotide-binding domain superfamily
- cGMP-dependent protein kinase, catalytic domain
- Cyclic nucleotide-binding domain
- Protein kinase domain
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.
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