Seroatlas · Human Serome Atlas

GNA11

Guanine nucleotide-binding protein subunit alpha-11

Also known as: FBH, FBH2, FHH2, GNA11_HUMAN, HHC2

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

Protein identityUniProt · HPA

UniProt accession
P29992
Gene
GNA11
Ensembl
ENSG00000088256
Chromosome
19
Canonical length
359 aa
Protein class
Cancer-related genes, Disease related genes, Human disease related genes, Potential drug targets, Predicted intracellular proteins, Transporters

OverviewNCBI Gene

The protein encoded by this gene belongs to the family of guanine nucleotide-binding proteins (G proteins), which function as modulators or transducers in various transmembrane signaling systems. G proteins are composed of 3 units: alpha, beta and gamma. This gene encodes one of the alpha subunits (subunit alpha-11). Mutations in this gene have been associated with hypocalciuric hypercalcemia type II (HHC2) and hypocalcemia dominant 2 (HYPOC2). Patients with HHC2 and HYPOC2 exhibit decreased or increased sensitivity, respectively, to changes in extracellular calcium concentrations. [provided by RefSeq, Dec 2013]

Canonical amino-acid sequenceUniProt

359 residues, UniProt reviewed canonical sequence.

>P29992|GNA11
     1  MTLESMMACC LSDEVKESKR INAEIEKQLR RDKRDARREL KLLLLGTGES GKSTFIKQMR
    61  IIHGAGYSEE DKRGFTKLVY QNIFTAMQAM IRAMETLKIL YKYEQNKANA LLIREVDVEK
   121  VTTFEHQYVS AIKTLWEDPG IQECYDRRRE YQLSDSAKYY LTDVDRIATL GYLPTQQDVL
   181  RVRVPTTGII EYPFDLENII FRMVDVGGQR SERRKWIHCF ENVTSIMFLV ALSEYDQVLV
   241  ESDNENRMEE SKALFRTIIT YPWFQNSSVI LFLNKKDLLE DKILYSHLVD YFPEFDGPQR
   301  DAQAAREFIL KMFVDLNPDS DKIIYSHFTC ATDTENIRFV FAAVKDTILQ LNLKEYNLV

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against GNA11 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)
0.27
Highest tissue expression
131 nTPM

Expression across tissuesHPA

Tissue

  • small intestine: 131 nTPM
  • duodenum: 111 nTPM
  • cerebellum: 78 nTPM
  • colon: 61 nTPM
  • skeletal muscle: 51 nTPM
  • heart muscle: 49 nTPM

Single-cell type

  • enterocytes: 314 nCPM
  • colonocytes: 219 nCPM
  • enteric transient amplifying cells: 109 nCPM
  • peritubular myoid cells: 97 nCPM
  • goblet cells: 93 nCPM
  • epididymal clear cells: 92 nCPM

Immune cell

  • neutrophil: 5.1 nTPM
  • basophil: 2.3 nTPM
  • plasmacytoid DC: 2.3 nTPM
  • classical monocyte: 1.4 nTPM
  • non-classical monocyte: 1.4 nTPM
  • naive CD4 T-cell: 1.1 nTPM

Brain region

  • cerebellum: 123 nTPM
  • amygdala: 87 nTPM
  • cerebral cortex: 84 nTPM
  • hippocampal formation: 81 nTPM
  • thalamus: 79 nTPM
  • hypothalamus: 75 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about GNA11.

Disease | AllUniProt

Conditions GNA11 is implicated in, by any mechanism.

Disease | GeneticClinVar

23 pathogenic / likely-pathogenic of 435 ClinVar records.

Conditions with pathogenic or likely-pathogenic variants.

ReferencesPubMed · IEDB

Publications for GNA11 from three distinct lines of evidence, kept separate because they answer different questions: whether antibodies are directed at the protein, whether a B-cell epitope has been mapped on it, and whether a T-cell epitope has. Each is labelled with its source.

Sources: PubMed — antigen-level antibody evidence from a custom retrieval. Records matching a controlled set of autoantibody terms (the MeSH descriptors Autoantibodies and Autoantigens, with title and abstract term variants) were obtained through NCBI E-utilities, and their titles and abstracts parsed for constructions that direct an antibody at a named protein rather than for co-occurrence. Captured names were resolved against UniProt nomenclature and each antigen adjudicated individually against the source text. Bibliographic records from PubMed and MeSH, U.S. National Library of Medicine; citation metrics from NIH iCite (Hutchins et al., PLoS Biology 2016). Titles link to PubMed; abstracts are not reproduced here. The NLM does not endorse this analysis.

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)
0.4
gnomAD pLI
0.89
gnomAD missense Z
3.77
DepMap mean gene effect
-0.15
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 GNA11 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 GNA11 as an antibody target. Whether an autoantibody or antibody against GNA11 could matter depends on whether native GNA11 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

GNA11 is annotated at the cell surface, where native GNA11 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 GNA11 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/GNA11. 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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