GNG13

gene
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Also known as h2-35G(gamma)13

Summary

GNG13 (G protein subunit gamma 13, HGNC:14131) is a protein-coding gene on chromosome 16p13.3, encoding Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-13 (Q9P2W3). Guanine nucleotide-binding proteins (G proteins) are involved as a modulator or transducer in various transmembrane signaling systems.

Heterotrimeric G proteins, which consist of alpha (see MIM 139320), beta (see MIM 139380), and gamma subunits, function as signal transducers for the 7-transmembrane-helix G protein-coupled receptors. GNG13 is a gamma subunit that is expressed in taste, retinal, and neuronal tissues and plays a key role in taste transduction (Li et al., 2006 [PubMed 16473877]).

Source: NCBI Gene 51764 — RefSeq curated summary.

At a glance

  • GWAS associations: 3
  • Clinical variants (ClinVar): 18 total
  • MANE Select transcript: NM_016541

Identifiers

Gene identifiers

FieldValue
HGNC IDHGNC:14131
Approved symbolGNG13
NameG protein subunit gamma 13
Location16p13.3
Locus typegene with protein product
StatusApproved
Aliasesh2-35, G(gamma)13
Ensembl geneENSG00000127588
Ensembl biotypeprotein_coding
OMIM607298
Entrez51764

Gene structure

Transcript identifiers

Ensembl transcripts: 3 — 3 protein_coding

ENST00000248150, ENST00000851007, ENST00000851008

RefSeq mRNA: 1 — MANE Select: NM_016541 NM_016541

CCDS: CCDS10427

Canonical transcript exons

ENST00000248150 — 3 exons

ExonStartEnd
ENSE00000873984798041798824
ENSE00000873985798980799111
ENSE00001367900800666800734

Expression profiles

Bgee: expression breadth broad, 85 present calls, max score 94.05.

FANTOM5 (CAGE): breadth broad, TPM avg 1.5000 / max 474.8632, expressed in 200 samples.

FANTOM5 promoters (3 alternative TSS)

Promoter IDTPM avgSamples expressed
1557881.3623186
1557870.086517
1557890.051126

Top tissues by expression

249 total, by Bgee expression score (0-100, higher = more expressed):

TissueAnatomy IDExpression scoreQuality
right hemisphere of cerebellumUBERON:001489094.05gold quality
cerebellar hemisphereUBERON:000224590.32gold quality
cerebellar cortexUBERON:000212990.28gold quality
cerebellumUBERON:000203788.60gold quality
lateral nuclear group of thalamusUBERON:000273686.30gold quality
right frontal lobeUBERON:000281086.12gold quality
primordial germ cell in gonadCL:0000670 ∩ UBERON:000099183.52gold quality
anterior cingulate cortexUBERON:000983580.21gold quality
cingulate cortexUBERON:000302780.08gold quality
Brodmann (1909) area 9UBERON:001354076.97gold quality
dorsolateral prefrontal cortexUBERON:000983476.92gold quality
mucosa of transverse colonUBERON:000499176.33gold quality
neocortexUBERON:000195073.22gold quality
frontal cortexUBERON:000187073.11gold quality
Brodmann (1909) area 46UBERON:000648372.80silver quality
prefrontal cortexUBERON:000045171.89gold quality
cerebral cortexUBERON:000095668.39gold quality
primary visual cortexUBERON:000243667.37gold quality
endothelial cellCL:000011566.62gold quality
brainUBERON:000095562.56gold quality
amygdalaUBERON:000187662.01gold quality
telencephalonUBERON:000189361.67gold quality
hypothalamusUBERON:000189861.63gold quality
occipital lobeUBERON:000202161.56gold quality
C1 segment of cervical spinal cordUBERON:000646960.94gold quality
inferior vagus X ganglionUBERON:000536360.70gold quality
cerebellar vermisUBERON:000472060.43silver quality
superior frontal gyrusUBERON:000266159.75gold quality
forebrainUBERON:000189059.60gold quality
spinal cordUBERON:000224059.02gold quality

Single-cell (SCXA)

Detected in 5 experiment(s), a significant marker in 4.

ExperimentMarker?Max mean expression
E-MTAB-7316yes3226.67
E-MTAB-9906yes1750.88
E-MTAB-11121yes1185.65
E-MTAB-8410yes4.15
E-ANND-3no0.86

Regulation

Is transcription factor: no

miRNA regulators (miRDB)

58 targeting GNG13, top 30 by miRDB confidence (max_score; target_count = how many genes the miRNA targets in total — lower means more specific):

miRNAMax scoreAvg scoremiRNA target_count
HSA-MIR-4283100.0066.422097
HSA-MIR-4481100.0066.421669
HSA-MIR-513A-5P100.0069.772465
HSA-MIR-1193100.0065.93529
HSA-MIR-453499.9966.581907
HSA-MIR-4745-5P99.9865.951028
HSA-MIR-185-3P99.9567.011743
HSA-MIR-808299.9567.271170
HSA-MIR-449299.8768.253611
HSA-MIR-3151-5P99.8663.831069
HSA-MIR-92A-2-5P99.7567.012164
HSA-MIR-1296-3P99.7264.04636
HSA-MIR-6848-3P99.6466.49885
HSA-MIR-76299.5866.611994
HSA-MIR-443799.5265.291266
HSA-MIR-448999.5065.56785
HSA-MIR-449899.4767.422360
HSA-MIR-239299.4367.50708
HSA-MIR-428499.3665.251293
HSA-MIR-128-1-5P99.3360.46332
HSA-MIR-128-2-5P99.3360.83311
HSA-MIR-504-3P99.3067.181745
HSA-MIR-450599.2767.812678
HSA-MIR-6843-3P99.2666.42915
HSA-MIR-578799.2267.862628
HSA-MIR-442699.1766.741949
HSA-MIR-319999.1765.19696
HSA-MIR-805299.1765.01719
HSA-MIR-5001-5P99.0566.761972
HSA-MIR-1228-3P99.0066.53857

Literature-anchored findings (GeneRIF, showing 3)

  • Ggamma13 interacts with PDZ domain-containing proteins (PMID:16473877)
  • GNG13 Is a Potential Marker of the State of Health of Alzheimer’s Disease Patients’ Cerebellum. (PMID:33057964)
  • High GNG13 expression is associated with poor survival in epithelial ovarian cancer and breast cancer. (PMID:34734529)

Cross-species orthologs

4 orthologs

OrganismSymbolGene ID
danio_reriogng13bENSDARG00000037921
mus_musculusGng13ENSMUSG00000025739
rattus_norvegicusGng13ENSRNOG00000039350
caenorhabditis_elegansgpc-2WBGENE00001682

Protein

Protein identifiers

Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-13Q9P2W3 (reviewed: Q9P2W3)

All UniProt accessions (1): Q9P2W3

UniProt curated annotations — full annotation on UniProt →

Function. Guanine nucleotide-binding proteins (G proteins) are involved as a modulator or transducer in various transmembrane signaling systems. The beta and gamma chains are required for the GTPase activity, for replacement of GDP by GTP, and for G protein-effector interaction.

Subunit / interactions. G proteins are composed of 3 units, alpha, beta and gamma.

Subcellular location. Cell membrane.

Similarity. Belongs to the G protein gamma family.

RefSeq proteins (1): NP_057625* (*=MANE)

Domains & families (InterPro)

IDNameType
IPR001770G-protein_gammaFamily
IPR015898G-protein_gamma-like_domDomain
IPR036284GGL_sfHomologous_superfamily
IPR039227GNG13Family

Pfam: PF00631

UniProt features (4 total): chain 1, propeptide 1, modified residue 1, lipid moiety-binding region 1

Structure

Experimental structures (PDB)

2 structures.

PDBMethodResolution (Å)
9M8KELECTRON MICROSCOPY3
9M8LELECTRON MICROSCOPY3.3

Predicted structure (AlphaFold)

ModelpLDDTFraction very-high
AF-Q9P2W3-F188.950.61

Functional residue map

Curated UniProt residues grouped by drug-discovery relevance — catalytic, ligand-binding, modification, and mutation-validated positions. Source: UniProtKB sequence features.

Post-translational modifications (2): 64, 64

Function

Pathways and Gene Ontology

Reactome pathways

32 pathways

IDPathway
R-HSA-1296041Activation of G protein gated Potassium channels
R-HSA-163359Glucagon signaling in metabolic regulation
R-HSA-202040G-protein activation
R-HSA-381676Glucagon-like Peptide-1 (GLP1) regulates insulin secretion
R-HSA-381753Olfactory Signaling Pathway
R-HSA-381771Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1)
R-HSA-392170ADP signalling through P2Y purinoceptor 12
R-HSA-392451G beta:gamma signalling through PI3Kgamma
R-HSA-392851Prostacyclin signalling through prostacyclin receptor
R-HSA-400042Adrenaline,noradrenaline inhibits insulin secretion
R-HSA-4086398Ca2+ pathway
R-HSA-416476G alpha (q) signalling events
R-HSA-416482G alpha (12/13) signalling events
R-HSA-418217G beta:gamma signalling through PLC beta
R-HSA-418555G alpha (s) signalling events
R-HSA-418592ADP signalling through P2Y purinoceptor 1
R-HSA-418594G alpha (i) signalling events
R-HSA-418597G alpha (z) signalling events
R-HSA-420092Glucagon-type ligand receptors
R-HSA-428930Thromboxane signalling through TP receptor
R-HSA-432040Vasopressin regulates renal water homeostasis via Aquaporins
R-HSA-456926Thrombin signalling through proteinase activated receptors (PARs)
R-HSA-500657Presynaptic function of Kainate receptors
R-HSA-6814122Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding
R-HSA-8964315G beta:gamma signalling through BTK
R-HSA-8964616G beta:gamma signalling through CDC42
R-HSA-9009391Extra-nuclear estrogen signaling
R-HSA-9634597GPER1 signaling
R-HSA-9660821ADORA2B mediated anti-inflammatory cytokines production
R-HSA-9717207Sensory perception of sweet, bitter, and umami (glutamate) taste

MSigDB gene sets: 170 (showing top): REACTOME_GLUCAGON_TYPE_LIGAND_RECEPTORS, REACTOME_ADRENALINE_NORADRENALINE_INHIBITS_INSULIN_SECRETION, REACTOME_POTASSIUM_CHANNELS, REACTOME_INWARDLY_RECTIFYING_K_CHANNELS, REACTOME_PLATELET_ACTIVATION_SIGNALING_AND_AGGREGATION, REACTOME_G_ALPHA_Z_SIGNALLING_EVENTS, STARK_PREFRONTAL_CORTEX_22Q11_DELETION_DN, GOBP_SENSORY_PERCEPTION_OF_CHEMICAL_STIMULUS, REACTOME_GLUCAGON_SIGNALING_IN_METABOLIC_REGULATION, GOBP_SENSORY_PERCEPTION_OF_TASTE, SMID_BREAST_CANCER_LUMINAL_B_UP, REACTOME_G_PROTEIN_ACTIVATION, REACTOME_G_BETA_GAMMA_SIGNALLING_THROUGH_PI3KGAMMA, REACTOME_G_PROTEIN_BETA_GAMMA_SIGNALLING, GOBP_SENSORY_PERCEPTION

GO Biological Process (4): G protein-coupled receptor signaling pathway (GO:0007186), phospholipase C-activating G protein-coupled receptor signaling pathway (GO:0007200), sensory perception of taste (GO:0050909), signal transduction (GO:0007165)

GO Molecular Function (2): G-protein beta-subunit binding (GO:0031681), protein binding (GO:0005515)

GO Cellular Component (5): heterotrimeric G-protein complex (GO:0005834), plasma membrane (GO:0005886), dendrite (GO:0030425), synapse (GO:0045202), membrane (GO:0016020)

Reactome top-level categories

Rollup of top-12 pathways:

CategoryPathways
GPCR downstream signalling5
Signal amplification3
Regulation of insulin secretion2
G-protein beta:gamma signalling2
G protein gated Potassium channels1
Integration of energy metabolism1
Opioid Signalling1
Sensory Perception1
Incretin synthesis, secretion, and inactivation1
Platelet homeostasis1
Beta-catenin independent WNT signaling1
Class B/2 (Secretin family receptors)1

GO top-level categories

Rollup of top GO terms by namespace:

CategoryTerms
G protein-coupled receptor activity1
signal transduction1
G protein-coupled receptor signaling pathway1
phospholipase C activator activity1
sensory perception of chemical stimulus1
cell communication1
cellular process1
signaling1
regulation of cellular process1
cellular response to stimulus1
protein binding1
binding1
extrinsic component of cytoplasmic side of plasma membrane1
plasma membrane protein complex1
GTPase complex1
membrane1
cell periphery1
neuron projection1
dendritic tree1
cell junction1
cellular anatomical structure1

Protein interactions and networks

STRING

2350 interactions, top by confidence (×1000):

Protein AProtein BPartner UniProtScore
GNG13GNB3P16520918
GNG13GNB1P04697888
GNG13GNG3P29798873
GNG13GNB4Q9HAV0832
GNG13GNGT2O14610780
GNG13GNGT1P63211768
GNG13GNG12Q9UBI6766
GNG13GNG10P50151751
GNG13GNG4P50150716
GNG13GNAT3A8MTJ3705
GNG13GNALP38405692
GNG13GNG2P59768687
GNG13PLCB2Q00722678
GNG13GRIK2Q13002665
GNG13GNAO1P09471649

IntAct

104 interactions, top by confidence:

ABTypeScore
GNG13FTOpsi-mi:“MI:0915”(physical association)0.560
GNG13UQCC2psi-mi:“MI:0915”(physical association)0.560
PAX5GNG13psi-mi:“MI:0915”(physical association)0.560
CTAG1AGNG13psi-mi:“MI:0915”(physical association)0.560
KRT37GNG13psi-mi:“MI:0915”(physical association)0.560
DISC1GNG13psi-mi:“MI:0915”(physical association)0.560
TRIM54GNG13psi-mi:“MI:0915”(physical association)0.560
TEAD2GNG13psi-mi:“MI:0915”(physical association)0.560
MEOX2GNG13psi-mi:“MI:0915”(physical association)0.560
CYSRT1GNG13psi-mi:“MI:0915”(physical association)0.560
RASSF10GNG13psi-mi:“MI:0915”(physical association)0.560
ADAMTSL4GNG13psi-mi:“MI:0915”(physical association)0.560
KRT27GNG13psi-mi:“MI:0915”(physical association)0.560
KRT38GNG13psi-mi:“MI:0915”(physical association)0.560
KRTAP9-2GNG13psi-mi:“MI:0915”(physical association)0.560
GLRX3GNG13psi-mi:“MI:0915”(physical association)0.560
CCHCR1GNG13psi-mi:“MI:0915”(physical association)0.560
KRT34GNG13psi-mi:“MI:0915”(physical association)0.560
GNG13WASHC3psi-mi:“MI:0915”(physical association)0.560
PLSCR2GNG13psi-mi:“MI:0915”(physical association)0.560
GNG13EMILIN1psi-mi:“MI:0915”(physical association)0.560
BEX5GNG13psi-mi:“MI:0915”(physical association)0.560
RPRMGNG13psi-mi:“MI:0915”(physical association)0.560
HOXA10GNG13psi-mi:“MI:0915”(physical association)0.560
HAUS3GNG13psi-mi:“MI:0915”(physical association)0.560
RSPO4GNG13psi-mi:“MI:0915”(physical association)0.560
FTOGNG13psi-mi:“MI:0915”(physical association)0.560
ABI3GNG13psi-mi:“MI:0915”(physical association)0.560

BioGRID (41): GNG13 (Two-hybrid), GNG13 (Two-hybrid), GNG13 (Two-hybrid), GNG13 (Two-hybrid), GNG13 (Two-hybrid), GNG13 (Two-hybrid), GNG13 (Two-hybrid), KRT34 (Two-hybrid), UQCC2 (Two-hybrid), EMILIN1 (Two-hybrid), TRIM54 (Two-hybrid), FTO (Two-hybrid), ADAMTSL4 (Two-hybrid), DISC1 (Two-hybrid), PLSCR2 (Two-hybrid)

ESM2 similar proteins: A0A804HLA8, O14610, O60262, O97564, P02698, P30671, P38040, P43425, P50150, P50151, P50153, P50154, P54406, P59768, P61952, P61953, P61954, P63077, P63078, P63210, P63211, P63212, P63213, P63214, P63215, P63216, P63217, P63218, P63219, Q28024, Q4VT26, Q5E9F0, Q5R639, Q5R7U4, Q5RBQ0, Q5REH7, Q61012, Q61016, Q61017, Q6CPB4

Diamond homologs: O14610, O60262, O97564, P02698, P30671, P38040, P43425, P50150, P50151, P50153, P50154, P54406, P59768, P61952, P61953, P61954, P63210, P63211, P63212, P63213, P63214, P63215, P63216, Q28024, Q5E9F0, Q5R639, Q5R7U4, Q5RBQ0, Q61012, Q61016, Q61017, Q9CXP8, Q9DAS9, Q9NFZ2, Q9NFZ3, Q9P2W3, Q9UBI6, Q9UK08, Q9JMF3

SIGNOR signaling

0 interactions.

Enriched among interaction partners

Reactome pathways and GO biological processes over-represented among this gene’s 35 IntAct physical interaction partners (hypergeometric vs the genome-wide background, BH-FDR, gene-set size 15–500, ranked by fold). A functional readout of the neighbourhood — distinct from this gene’s own memberships above, and biased toward well-studied / hub proteins, so read it as themes rather than proof.

Reactome pathways:

PathwayPartnersFoldFDR
ADORA2B mediated anti-inflammatory cytokines production563.4×4e-07
GPER1 signaling562.1×4e-07
G alpha (z) signalling events558.3×4e-07
G alpha (s) signalling events518.3×3e-05
Keratinization513.9×7e-05
G alpha (i) signalling events59.7×3e-04

Disease & clinical

Clinical variants and AI predictions

ClinVar

18 variants total. Per-class counts are floors (≥ shown; pagination cap):

ClassificationCount (floor)
Pathogenic0
Likely pathogenic0
Uncertain significance18
Likely benign0
Benign0

Top pathogenic / likely-pathogenic (0)

SpliceAI

508 predictions. Top by Δscore:

VariantEffectΔscore
16:798978:A:ACdonor_gain1.0000
16:798979:C:CCdonor_gain1.0000
16:798979:CT:Cdonor_gain1.0000
16:798821:CAGC:Cacceptor_gain0.9900
16:798822:AGCC:Aacceptor_loss0.9900
16:798824:CCTGC:Cacceptor_loss0.9900
16:798825:C:CCacceptor_gain0.9900
16:798825:C:Tacceptor_loss0.9900
16:798826:T:Gacceptor_loss0.9900
16:798971:GGCAC:Gdonor_loss0.9900
16:798972:GCAC:Gdonor_loss0.9900
16:798973:CACTC:Cdonor_loss0.9900
16:798974:ACTC:Adonor_loss0.9900
16:798976:T:TCdonor_loss0.9900
16:798977:CACT:Cdonor_loss0.9900
16:798978:A:Cdonor_loss0.9900
16:798979:C:CAdonor_loss0.9900
16:798979:CTCG:Cdonor_gain0.9900
16:799107:TGGGG:Tacceptor_gain0.9900
16:799108:GGGG:Gacceptor_gain0.9900
16:799110:GG:Gacceptor_gain0.9900
16:799112:C:CCacceptor_gain0.9900
16:800661:CCTA:Cdonor_loss0.9900
16:800662:CTAC:Cdonor_loss0.9900
16:800663:TAC:Tdonor_loss0.9900
16:800665:CCTTG:Cdonor_loss0.9900
16:798823:GC:Gacceptor_gain0.9800
16:798824:CC:Cacceptor_gain0.9800
16:798978:ACT:Adonor_gain0.9800
16:798979:CTC:Cdonor_gain0.9800

AlphaMissense

446 scored. Top likely-pathogenic:

VariantProtein changeam_pathogenicity
16:798751:A:GW58R0.996
16:798751:A:TW58R0.996
16:798749:C:AW58C0.993
16:798749:C:GW58C0.993
16:799031:A:GL16P0.992
16:798755:G:CN56K0.991
16:798755:G:TN56K0.991
16:798822:A:GL34P0.983
16:798750:C:GW58S0.982
16:799019:A:GL20P0.981
16:798733:A:GC64R0.978
16:798780:A:GL48P0.977
16:798790:C:GD45H0.976
16:798731:G:CC64W0.969
16:799033:G:CS15R0.969
16:799033:G:TS15R0.969
16:799035:T:GS15R0.969
16:798789:T:GD45A0.968
16:799007:C:GR24P0.968
16:798732:C:GC64S0.967
16:798733:A:TC64S0.967
16:798783:A:GF47S0.967
16:798751:A:CW58G0.965
16:798789:T:CD45G0.965
16:798757:T:CN56D0.963
16:798789:T:AD45V0.962
16:799007:C:AR24L0.961
16:799031:A:TL16H0.961
16:798788:G:CD45E0.960
16:798788:G:TD45E0.960

dbSNP variants (sampled 300 via entrez): RS1000512492 (16:800254 T>A,C), RS1000968959 (16:798515 C>A,G,T), RS1001968399 (16:800128 T>G), RS1002035161 (16:799276 G>A,T), RS1002647091 (16:800683 G>A), RS1002698044 (16:800562 C>T), RS1002968228 (16:799210 A>G), RS1003948879 (16:797588 G>A,T), RS1004521249 (16:798954 G>A), RS1004980289 (16:801354 G>T), RS1005306988 (16:799609 T>C), RS1006323536 (16:800642 C>G,T), RS1006353338 (16:800715 A>C,G), RS1006967320 (16:801034 A>G), RS1007658016 (16:800414 G>A)

Disease associations

OMIM: gene MIM:607298 | disease phenotypes:

GenCC curated gene-disease

Mondo (0):

Orphanet (0):

HPO phenotypes

0 total (0 of 0 shown, HPO-id order):

GWAS associations

3 associations (top):

StudyTraitp-value
GCST009391_719Metabolite levels5.000000e-06
GCST90002390_646Mean corpuscular hemoglobin3.000000e-14
GCST90002396_574Mean reticulocyte volume6.000000e-20

EFO canonical traits (3, from GWAS)

EFO IDTrait name
EFO:0010532salicylurate measurement
EFO:0004527mean corpuscular hemoglobin
EFO:0010701mean reticulocyte volume

Drugs & pharmacology

Drug and pharmacology data

Is drug target: no

PharmGKB: 1 entry (VIP=true, CPIC=false)

CTD chemical–gene interactions

14 total (human), top 14 by PubMed support.

ChemicalActions (top 5)PubMed papers
Particulate Matteraffects methylation, increases abundance, affects expression2
aristolochic acid Iincreases expression1
perfluorooctanoic acidincreases expression1
perfluorohexanesulfonic acidincreases expression1
licochalcone Bincreases expression1
jinfukangincreases expression1
Air Pollutantsaffects methylation, increases abundance1
Atrazineincreases expression1
Benzo(a)pyreneaffects methylation, decreases methylation1
Chelating Agentsdecreases expression, affects binding1
Copperaffects binding, decreases expression1
Nitrogen Dioxideaffects methylation, increases abundance1
Phthalic Acidsincreases methylation1
Valproic Acidincreases methylation1

Clinical trials (associated diseases)

0 trials via MONDO — disease-level, not drug-specific.

No linked Atlas pages yet — the cross-entity mesh grows as the corpus expands.