Gβ1 Protein G Protein Subunit Beta 1 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-protein"> [@kimple2002] | Parameter | Value | [@betke2012] |-----------|-------| | Protein Name | G Protein Beta Subunit 1 (Gβ1) | | Gene | GNB1 | | UniProt ID | P62879 | | PDB ID | 1XJD, 4G5Q | | Molecular Weight | 37 kDa | | Subcellular Localization | Plasma membrane, cytoplasm | | Protein Family | WD40 repeat protein family | </div>
Overview
Gβ1 is the beta subunit of heterotrimeric G proteins. It forms a functional dimer with Gγ subunits and plays essential roles in transducing signals from G protein-coupled receptors (GPCRs) to various intracellular effectors.
Structure
Gβ1 has a distinctive WD40 repeat structure:
WD40 repeats: Seven repeats forming a beta-propeller
N-terminal coiled-coil: Interacts with Gγ subunits
Effector binding site: Binds to various downstream targets
Gγ binding interface: Forms stable Gβγ dimers
The structure forms a seven-bladed propeller that provides multiple interaction surfaces.
Normal Function
G Protein Signaling
Couples activated GPCRs to effectors
Gβγ dimer signals independently of Gα
Modulates ion channels (GIRK, Ca²⁺ channels)
Regulates adenylate cyclase activity
Controls phospholipase C isoforms
...
Gβ1 Protein - G Protein Subunit Beta 1
Introduction
Gβ1 Protein G Protein Subunit Beta 1 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-protein"> [@kimple2002] | Parameter | Value | [@betke2012] |-----------|-------| | Protein Name | G Protein Beta Subunit 1 (Gβ1) | | Gene | GNB1 | | UniProt ID | P62879 | | PDB ID | 1XJD, 4G5Q | | Molecular Weight | 37 kDa | | Subcellular Localization | Plasma membrane, cytoplasm | | Protein Family | WD40 repeat protein family | </div>
Overview
Gβ1 is the beta subunit of heterotrimeric G proteins. It forms a functional dimer with Gγ subunits and plays essential roles in transducing signals from G protein-coupled receptors (GPCRs) to various intracellular effectors.
Structure
Gβ1 has a distinctive WD40 repeat structure:
WD40 repeats: Seven repeats forming a beta-propeller
N-terminal coiled-coil: Interacts with Gγ subunits
Effector binding site: Binds to various downstream targets
Gγ binding interface: Forms stable Gβγ dimers
The structure forms a seven-bladed propeller that provides multiple interaction surfaces.
The study of Gβ1 Protein G Protein Subunit Beta 1 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.