Phospholipase C Gamma 1 Protein

Phospholipase C Gamma 1 Protein

Introduction

Phospholipase C Gamma 1 Protein is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.

Overview

Phospholipase C Gamma 1 Protein

Introduction

Phospholipase C Gamma 1 Protein is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.

Overview

Phospholipase C gamma 1 (PLCgamma1) is a key enzyme in intracellular signal transduction that catalyzes the hydrolysis of phosphatidylinositol 4,5-bisphosphate (PIP2) into inositol 1,4,5-trisphosphate (IP3) and diacylglycerol (DAG). These second messengers regulate calcium release from endoplasmic reticulum stores and activate protein kinase C (PKC), respectively. PLCgamma1 is uniquely characterized by its regulatory regions containing two SH2 domains and one SH3 domain, which allow it to be activated by receptor tyrosine kinases (RTKs) through direct phosphorylation. In the nervous system, PLCgamma1 plays critical roles in synaptic plasticity, dendritic spine formation, learning and memory, and neuronal excitability. Dysregulation of PLCgamma1 signaling contributes to the pathogenesis of Alzheimer's disease, Parkinson's disease, and various cancers. [@supa2000]

<div class="infobox infobox-protein"> [@supa2001]
<table> [@supa2005]
<tr><th colspan="2" style="background:#e8f4f8; text-align:center; font-size:1.1em;">Phospholipase C Gamma 1 Protein</th></tr> [@supa2006]
<tr><td><strong>Protein Name</strong></td><td>Phospholipase C Gamma 1 Protein</td></tr> [@supa2012]
<tr><td><strong>Gene</strong></td><td>[PLCG1](/genes/plcg1)</td></tr> [@supa2013]
<tr><td><strong>UniProt ID</strong></td><td>[P19174](https://www.uniprot.org/uniprot/P19174)</td></tr> [@supa2015]
<tr><td><strong>PDB IDs</strong></td><td>4GOM, 2E2X, 4O44</td></tr>
<tr><td><strong>Molecular Weight</strong></td><td>148.5 kDa</td></tr>
<tr><td><strong>Subcellular Location</strong></td><td>Cytoplasm, plasma membrane</td></tr>
<tr><td><strong>Protein Family</strong></td><td>Phospholipase C gamma family</td></tr>
<tr>
<td class="label">Associated Diseases</td>
<td><a href="/wiki/cancer" style="color:#ef9a9a">Cancer</a>, <a href="/wiki/glioblastoma" style="color:#ef9a9a">Glioblastoma</a>, <a href="/wiki/ms" style="color:#ef9a9a">Ms</a>, <a href="/wiki/tumor" style="color:#ef9a9a">Tumor</a></td>
</tr>
<tr>
<td class="label">KG Connections</td>
<td><a href="/atlas" style="color:#4fc3f7">12 edges</a></td>
</tr>
</table>
</div>

Structure

Phospholipase C Gamma 1 Protein is a Phospholipase C gamma family. This protein contains characteristic transmembrane domains and regulatory domains that control channel activity and calcium release.

Normal Function

PLCG1 is a phospholipase C isoform activated by receptor tyrosine kinases (RTKs). It catalyzes PIP2 hydrolysis to generate IP3 and DAG, key second messengers that trigger calcium release and activate PKC. PLCG1 plays crucial roles in cell growth, differentiation, synaptic plasticity, and immune response. In [neurons](/entities/neurons), PLCG1 is involved in [NMDA receptor](/entities/nmda-receptor) signaling and dendritic spine formation.

Role in Disease

PLCG1 dysregulation is implicated in AD ([amyloid-beta](/proteins/amyloid-beta) effects on signaling), cancer (constitutive activation), and autoimmune disorders. PLCG1 mutations cause immune deficiency and developmental abnormalities.

Therapeutic Targeting

Several PLCG1 inhibitors are under development for cancer and inflammatory diseases. None are currently approved specifically for neurodegenerative diseases.

Key Publications

Cross-Links

• [PLCG1 Gene](/genes/plcg1)
• [Mechanisms/Calcium-Signaling](/mechanisms/calcium-signaling-dysregulation))
• [Alzheimer's Disease](/diseases/alzheimers-disease)
• [Parkinson's Disease](/diseases/parkinsons-disease)

Background

The study of Phospholipase C Gamma 1 Protein 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.

Brain Atlas Resources

• [Allen Human Brain Atlas - PLCG1 Expression](https://human.brain-map.org/microarray/search/show?search_term=PLCG1)
• [Allen Cell Type Atlas - PLCG1](https://celltypes.brain-map.org/)
• [BrainSpan - PLCG1 Developmental Expression](https://brainspan.org/)
• [Allen Mouse Brain Atlas - PLCG1](https://mouse.brain-map.org/)

See Also

• PLCG1 Gene
• IP3 Receptor
• [Ryanodine Receptor](/entities/ryanodine-receptor)
• [Calcium Signaling in Neurodegeneration](/mechanisms/calcium-signaling-neurodegeneration) Protein Kinase C
• Phospholipase C Family

External Links

• [UniProt: P19174](https://www.uniprot.org/uniprot/P19174)
• [PDB: 4GOM](https://www.rcsb.org/structure/4GOM)
• [Phospholipase C gamma family in neuronal signaling](https://pubmed.ncbi.nlm.nih.gov/?term=PLCg1+neuronal+signaling)
• [PLCγ1 in Alzheimer's disease](https://pubmed.ncbi.nlm.nih.gov/?term=PLCg1+Alzheimer+disease)

References

PMID: 10925269(https://pubmed.ncbi.nlm.nih.gov/10925269/) PMID: 10625668(https://pubmed.ncbi.nlm.nih.gov/10625668/) PMID: 10880447(https://pubmed.ncbi.nlm.nih.gov/10880447/) PMID: 15632156(https://pubmed.ncbi.nlm.nih.gov/15632156/) PMID: 17420503(https://pubmed.ncbi.nlm.nih.gov/17420503/) PMID: 19565567(https://pubmed.ncbi.nlm.nih.gov/19565567/) PMID: 22713372(https://pubmed.ncbi.nlm.nih.gov/22713372/) PMID: 25833071(https://pubmed.ncbi.nlm.nih.gov/25833071/)

Pathway Diagram

The following diagram shows the key molecular relationships involving Phospholipase C Gamma 1 Protein discovered through SciDEX knowledge graph analysis: