Homer Scaffold Protein 1 (Homer1 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.
--- [@xiao2000] title: HOMER1 Protein [@sala2001] description: Homer Scaffold Protein 1 - mGluR scaffolding, synaptic plasticity, calcium signaling regulation [@pmidhttp] tags: protein, neurodegeneration, Homer family [^5]
Homer Scaffold Protein 1 (Homer1 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.
--- [@xiao2000] title: HOMER1 Protein [@sala2001] description: Homer Scaffold Protein 1 - mGluR scaffolding, synaptic plasticity, calcium signaling regulation [@pmidhttp] tags: protein, neurodegeneration, Homer family [^5] .infobox.inbox-protein [@homer] HOMER1 Protein [@homera] === === Protein Name: Homer Scaffold Protein 1 Gene: [HOMER1](/proteins/homer1-protein) UniProt ID: Q86YM7 Molecular Weight: 186 kDa Protein Family: Homer family Subcellular Localization: Postsynaptic densities === ===
Overview
Homer Scaffold Protein 1 is a protein encoded by the [HOMER1](/proteins/homer1-protein) gene. It belongs to the Homer family and is primarily localized to Postsynaptic densities.
Structure
HOMER1 is a 186 kDa protein with multiple domains that enable its scaffolding and signaling functions in [neurons](/entities/neurons).
Normal Function
mGluR scaffolding, synaptic plasticity, calcium signaling regulation. This protein plays important roles in maintaining normal neuronal function and synaptic transmission.
Role in Neurodegeneration
Alterations in HOMER1 have been associated with several neurodegenerative and neurological disorders. Studies have shown changes in expression and mutations in various disease contexts.
Therapeutic Targeting
Research is ongoing to develop therapeutic approaches targeting HOMER1 for neurological disorders.
May affect [Aβ](/proteins/amyloid-beta)-induced synaptic dysfunction
Therapeutic target for cognitive enhancement
Parkinson's Disease
Altered Homer1 expression in PD models
Modulates dopaminergic synapse function
Role in L-DOPA-induced dyskinesias
Interacts with striatal signaling pathways
Huntington's Disease
Mutant [huntingtin](/proteins/huntingtin-protein) affects Homer1 function
Contributes to dendritic spine loss
Alters mGluR signaling in striatum
Therapeutic implications for disease modification
Autism Spectrum Disorders
Homer1 mutations identified in ASD
Affects excitatory/inhibitory balance
Animal models show repetitive behaviors
Therapeutic Implications
Target Validation
mGluR5-Homer1 interaction as drug target
Allosteric modulators of Homer1 binding
Gene therapy for haploinsufficiency
Preclinical Evidence
Homer1 knockdown improves memory in AD models
Peptide inhibitors show neuroprotective effects
Viral vector delivery in development
Research Directions
Cryo-EM structure of Homer1 complexes
Optogenetic manipulation of Homer1-dependent signaling
Clinical trials targeting mGluR-Homer pathways
Background
The study of Homer Scaffold Protein 1 (Homer1 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.
References
PMID: 11891228(https://pubmed.ncbi.nlm.nih.gov/11891228/)
PMID: 22926526(https://pubmed.ncbi.nlm.nih.gov/22926526/) - Homer mutations in neurodevelopmental disorders [@homer]: PMID: 26168996(https://pubmed.ncbi.nlm.nih.gov/26168996/) - Homer scaffolding in neurodegenerative diseases [@homera]: PMID: 38000303(https://pubmed.ncbi.nlm.nih.gov/38000303/) - Homer1 in synaptic organization and neurological disorders