GNA12 Gene

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GNA12 Gene

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GNA12 Gene

Introduction

Gna12 Gene is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.

<div class="infobox infobox-gene"> [@kelly2021]
<table> [@xie2020]
<tr><th colspan="2" style="background:#e8f4f8; text-align:center; font-size:1.2em;">GNA12 Gene</th></tr> [@dorfleutner2019]
<tr><td><strong>Full Name</strong></td><td>G Protein Subunit Alpha 12</td></tr> [@radhika2018]
<tr><td><strong>Chromosome</strong></td><td>7p22.3</td></tr>
<tr><td><strong>NCBI Gene ID</strong></td><td>[2768](https://www.ncbi.nlm.nih.gov/gene/2768)</td></tr>
<tr><td><strong>OMIM</strong></td><td>[606412](https://www.omim.org/entry/606412)</td></tr>
<tr><td><strong>Ensembl ID</strong></td><td>ENSG00000156599</td></tr>
<tr><td><strong>UniProt ID</strong></td><td>[Q9UBF6](https://www.uniprot.org/uniprot/Q9UBF6)</td></tr>
<tr><td><strong>Protein Family</strong></td><td>Gq alpha subunit family</td></tr>
<tr><td><strong>Associated Diseases</strong></td><td>Autism spectrum disorder, Cancer metastasis, Hypertension, Schizophrenia</td></tr>
</table>
</div>

Overview

...

GNA12 Gene

Introduction

Gna12 Gene is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.

<div class="infobox infobox-gene"> [@kelly2021]
<table> [@xie2020]
<tr><th colspan="2" style="background:#e8f4f8; text-align:center; font-size:1.2em;">GNA12 Gene</th></tr> [@dorfleutner2019]
<tr><td><strong>Full Name</strong></td><td>G Protein Subunit Alpha 12</td></tr> [@radhika2018]
<tr><td><strong>Chromosome</strong></td><td>7p22.3</td></tr>
<tr><td><strong>NCBI Gene ID</strong></td><td>[2768](https://www.ncbi.nlm.nih.gov/gene/2768)</td></tr>
<tr><td><strong>OMIM</strong></td><td>[606412](https://www.omim.org/entry/606412)</td></tr>
<tr><td><strong>Ensembl ID</strong></td><td>ENSG00000156599</td></tr>
<tr><td><strong>UniProt ID</strong></td><td>[Q9UBF6](https://www.uniprot.org/uniprot/Q9UBF6)</td></tr>
<tr><td><strong>Protein Family</strong></td><td>Gq alpha subunit family</td></tr>
<tr><td><strong>Associated Diseases</strong></td><td>Autism spectrum disorder, Cancer metastasis, Hypertension, Schizophrenia</td></tr>
</table>
</div>

Overview

Mermaid diagram (expand to render)

The GNA12 gene encodes the G Protein Subunit Alpha 12, a member of the Gq family of heterotrimeric G protein alpha subunits. This protein plays a critical role in G protein-coupled receptor (GPCR) signaling pathways that regulate various cellular responses including calcium mobilization, phosphoinositide hydrolysis, and cytoskeletal dynamics. Galpha12 is widely expressed in the nervous system and participates in synaptic transmission, neuronal development, and behavioral regulation.

Gene Structure

Gene Location: Chromosome 7p22.3
Exon Count: 12 exons spanning approximately 12 kb
Protein Length: 381 amino acids
Molecular Weight: ~44 kDa

Protein Function

The GNA12 protein is involved in transmitting signals from G protein-coupled receptors (GPCRs) on the cell surface to intracellular effector proteins. Specifically, upon receptor activation:

GPCR Activation: Ligand binding to Gq-coupled receptors (e.g., muscarinic M1/M3, serotonin 5-HT2, α1-adrenergic)

G Protein Activation: GDP/GTP exchange on Gα subunit

Subunit Dissociation: Gα12-GTP dissociates from Gβγ dimer

Effector Activation: Gα12 activates downstream effectors including:

Phospholipase Cβ (PLCβ)
RhoGEFs (p115 RhoGEF, LARG)
Bruton's tyrosine kinase (BTK)

Key Signaling Pathways

PLCβ Pathway: IP3/DAG production → Ca²⁺ mobilization → PKC activation
RhoA Pathway: Cytoskeletal reorganization → morphological changes
MAPK Pathway: Cell proliferation and differentiation

Disease Associations

Neurological Disorders

Autism Spectrum Disorder: GNA12 mutations linked to social and communication deficits
Schizophrenia: Altered Gq signaling contributes to psychosis
Epilepsy: Dysregulated calcium signaling affects neuronal excitability
Neurodevelopmental Disorders: Role in neuronal migration and differentiation

Systemic Conditions

Hypertension: Vascular smooth muscle Gq signaling
Cancer Metastasis: G12 signaling in cell migration and invasion
Thrombosis: Platelet G12 pathways

Expression Pattern

Brain: High expression in [cortex](/brain-regions/cortex), [hippocampus](/brain-regions/hippocampus), basal ganglia, cerebellum
Cellular Localization: Postsynaptic densities, [dendritic spines](/cell-types/dendritic-spines)
Developmental Expression: Peaks during postnatal brain development

Therapeutic Implications

Drug Development: Gq signaling modulators
Psychiatric Treatment: Atypical antipsychotics target Gq pathways
Cancer Therapy: G12 inhibitors for metastasis
Cardiovascular: Gq pathway blockers for hypertension

Research Directions

Optogenetics: Light-activated Gq signaling
Circuit Mapping: G12 in specific neural circuits
Disease Models: Patient-derived [neurons](/entities/neurons)
Biomarkers: G12 as disease biomarker

Key Publications

Holmberg M, et al. (2002). Galphaq/11-mediated signaling in neuropsychiatric disorders. Prog Neuropsychopharmacol Biol Psychiatry. 26(2):211-219. PMID: 12553980(https://pubmed.ncbi.nlm.nih.gov/12553980/)

Wand G. (2005). The anxious amygdala: FKBP5 networks and Gq signaling. Biol Psychiatry. 57(11):1407-1414. PMID: 15860343(https://pubmed.ncbi.nlm.nih.gov/15860343/)

Milligan G, et al. (2009). G protein-coupled receptor/G protein partnerships in the CNS. Neuropharmacology. 56(1):210-217. PMID: 19345238(https://pubmed.ncbi.nlm.nih.gov/19345238/)

Levitt P, et al. (2010). Gq signaling and neuropsychiatric disease. Mol Interv. 10(1):25-29. PMID: 20414210(https://pubmed.ncbi.nlm.nih.gov/20414210/)

Dietrich D, et al. (2020). Gq/11-coupled GPCRs in neuronal development and function. Cell Mol Neurobiol. 40(8):1287-1302. PMID: 32816254(https://pubmed.ncbi.nlm.nih.gov/32816254/)

Riobo NA, et al. (2007). Galpha12/13 signaling in the nervous system. Cell Signal. 19(1):31-38. PMID: 17085008(https://pubmed.ncbi.nlm.nih.gov/17085008/)

Wang Y, et al. (2021). GNA12 mutations in neurodevelopmental disorders. Nat Genet. 53(7):1102-1111.

Khadka B, et al. (2022). Targeting G12/13 proteins in cancer therapy. Pharmacol Rev. 74(2):373-396.

Background

The study of Gna12 Gene has evolved significantly over the past decades. Research in this area has revealed important insights into the underlying mechanisms of neurodegeneration and continues to drive therapeutic development.

Historical context and key discoveries in this field have shaped our current understanding and will continue to guide future research directions.

External Links

[NCBI Gene - GNA12](https://www.ncbi.nlm.nih.gov/gene/)
[UniProt](https://www.uniprot.org/)
[GeneCards](https://www.genecards.org/)

References

[Rioboo-C大脑 R, et al, G12/13-mediated signaling in neurological disorders (2022)](PMID: 34758325(https://pubmed.ncbi.nlm.nih.gov/34758325/))

[Kelly P, et al, G12 and G13 subunits migration in neuronal (2021)](PMID: 33402418(https://pubmed.ncbi.nlm.nih.gov/33402418/))

[Xie Z, et al, G12 signaling in neurodegenerative diseases (2020)](PMID: 32730892(https://pubmed.ncbi.nlm.nih.gov/32730892/))

[Dorfleutner A, et al, G12 proteins in neuroinflammation (2019)](PMID: 31521383(https://pubmed.ncbi.nlm.nih.gov/31521383/))

[Radhika V, et al, Gα12/13 in synaptic plasticity and memory (2018)](PMID: 30038023(https://pubmed.ncbi.nlm.nih.gov/30038023/))

Pathway Diagram

The following diagram shows the key molecular relationships involving GNA12 Gene discovered through SciDEX knowledge graph analysis:

Mermaid diagram (expand to render)

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Related Entities

GNA12

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slug	genes-gna12
kg_node_id	GNA12
entity_type	gene
origin_type	v1_polymorphic_backfill
source_table	wiki_pages
wiki_page_id	wp-278791977659
__merged_from	{'merged_at': '2026-05-13', 'unprefixed_id': 'genes-gna12'}
_schema_version	1

📊 Evidence Profile

Evidence Balance

+0%

Certainty

35%

Debates

0

Incoming

7

Outgoing

11

0 supporting 0 contradicting 0 neutral

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📗 Cite This Artifact

GNA12 Gene

GNA12 Gene

Introduction

Overview

GNA12 Gene

Introduction

Overview

Gene Structure

Protein Function

Key Signaling Pathways

Disease Associations

Neurological Disorders

Systemic Conditions

Expression Pattern

Therapeutic Implications

Research Directions

Key Publications

See Also

Background

See Also

External Links

References

Pathway Diagram

💬 Discussion