[Drp1](/genes/drp1) Protein plays an important role in the study of neurodegenerative diseases. This page provides comprehensive information about this topic, including its mechanisms, significance in disease processes, and therapeutic implications[@knott2008][@zhang2011].
Introduction
[Drp1](/proteins/drp1-protein) 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.
[Drp1](/genes/drp1) Protein plays an important role in the study of neurodegenerative diseases. This page provides comprehensive information about this topic, including its mechanisms, significance in disease processes, and therapeutic implications[@knott2008][@zhang2011].
Introduction
[Drp1](/proteins/drp1-protein) 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.
{"content": "# [DRP1](/proteins/drp1-protein) Protein (DNM1L)\n\n<div class=\"infobox infobox-protein\">\n <table>\n <tr><th colspan=\"2\" style=\"background:#4a90d9; color:white;\">Dynamin-Related Protein 1 (DRP1)</th></tr>\n <tr><td><strong>Gene</strong></td><td><a href=\"/genes/dnm1l\">DNM1L</a></td></tr>\n <tr><td><strong>UniProt ID</strong></td><td><a href=\"https://www.uniprot.org/uniprot/O00429\">O00429</a></td></tr>\n <tr><td><strong>Molecular Weight</strong></td><td>80 kDa</td></tr>\n <tr><td><strong>Subcellular Localization</strong></td><td>Cytoplasm, mitochondria, peroxisomes</td></tr>\n <tr><td><strong>Protein Family</strong></td><td>Dynamin GTPase family</td></tr>\n </table>\n</div>\n\n\n## Overview\n\nDRP1 (Dynamin-Related Protein 1) is a large GTPase that mediates mitochondrial fission and peroxisomal division. DRP1 is essential for mitochondrial dynamics, playing a critical role in maintaining neuronal health and function[^1].\n\n## Structure\n\nDRP1 contains multiple domains that enable its diverse functions:\n\n1. N-terminal GTPase domain: Responsible for GTP binding and hydrolysis, the catalytic core of DRP1\n2. Middle domain: Mediates protein-protein interactions with adaptors\n3. Pleckstrin homology (PH) domain: Facilitates membrane targeting and localization\n4. GTPase effector domain (GED): Regulates GTPase activity and filament formation\n\n## Normal Function\n\nDRP1 orchestrates essential cellular processes:\n\n- Mitochondrial fission: DRP1 assembles around mitochondria, mediating membrane constriction and scission to divide mitochondria into smaller units\n- Peroxisomal division: Controls peroxisome number and morphology through similar fission mechanisms\n- Mitochondrial quality control: Fission enables damaged mitochondrial segments to be selectively removed via mitophagy\n- [Apoptosis](/entities/apoptosis) regulation: During programmed cell death, DRP1 translocates to mitochondria to facilitate cytochrome c release\n- Synaptic function: Proper mitochondrial distribution in [neurons](/entities/neurons) depends on DRP1-mediated fission, critical for synaptic energy demands[^2]\n\n## Role in Disease\n\n### Alzheimer's Disease\n\n- [Amyloid-beta](/proteins/amyloid-beta) (A\u03b2) induces DRP1 mitochondrial translocation, leading to excessive fission\n- Hyperfission contributes to synaptic loss and neuronal dysfunction\n- DRP1 phosphorylation at Ser616 is increased in AD brains\n- Therapeutic approaches aim to normalize DRP1 activity\n\n### Parkinson's Disease\n\n- PINK1 and Parkin regulate DRP1-mediated mitophagy of damaged mitochondria\n- Mutations in PINK1 (PARK6) and Parkin (PARK2) impair this quality control pathway\n- DRP1 inhibitors like Mdivi-1 show neuroprotective potential\n- G2019S LRRK2 mutation affects mitochondrial dynamics through DRP1\n\n### Amyotrophic Lateral Sclerosis (ALS)\n\n- Mutant SOD1 impairs DRP1 function and mitochondrial transport\n- [TDP-43](/proteins/tdp-43) pathology affects mitochondrial dynamics genes\n- Dysregulated fission contributes to motor neuron vulnerability\n\n### Huntington's Disease\n\n- Mutant [huntingtin](/proteins/huntingtin-protein) (mHTT) alters DRP1 recruitment to mitochondria\n- Impaired fission leads to mitochondrial dysfunction and energy deficits\n- DRP1 dysfunction contributes to striatal neuron vulnerability\n\n### Stroke and Brain Injury\n\n- Ischemia triggers DRP1-mediated mitochondrial fission\n- Excessive fission contributes to neuronal death\n- DRP1 inhibition shows neuroprotective potential\n\n## Molecular Mechanisms\n\nDRP1 is regulated by multiple post-translational modifications:\n\n- Phosphorylation: Ser616 (pro-fission) by CDK1/5, Ser637 (anti-fission) by PKA\n- Sumoylation: Enhances mitochondrial recruitment\n- Ubiquitination: Parkin-mediated degradation during mitophagy\n- O-GlcNAcylation: Glucose metabolism links to fission regulation\n\n## Therapeutic Targeting\n\n| Agent | Mechanism | Status | References |\n|-------|-----------|--------|------------|\n| Mdivi-1 | DRP1 GTPase inhibitor | Preclinical | [^3] |\n| P110 | DRP1 peptide inhibitor | Preclinical | [^4] |\n| Rottlerin | PKC\u03b4 inhibitor (affects DRP1) | Research | [^5] |\n\n## Research Directions\n\nCurrent research focuses on:\n- Developing brain-penetrant DRP1 inhibitors\n- Understanding isoform-specific functions\n- Targeting DRP1 adaptors (MiD49, MiD50)\n- Gene therapy approaches for DRP1 modulation\n\n
Pathway & Interaction Diagram
Interactive diagram showing DRP1 key relationships in the SciDEX knowledge graph (15 connections shown).
Mermaid diagram (expand to render)
References\n\n[^1]: <sup><a href=\"https://pubmed.ncbi.nlm.nih.gov/19240130/\">[1]</a></sup> Knott AB, et al. Mitochondrial fission in apoptosis. Nat Rev Neurosci. 2008.\n\n[^2]: <sup><a href=\"https://pubmed.ncbi.nlm.nih.gov/22120144/\">[2]</a></sup> Zhang J, et al. Mitochondrial dynamics in neuronal development and disease. J Neurosci. 2011.\n\n[^3]: <sup><a href=\"https://pubmed.ncbi.nlm.nih.gov/21872611/\">[3]</a></sup> Cleva RM, et al. DRP1 inhibition in Parkinson's disease. Neuropharmacology. 2011.\n\n[^4]: <sup><a href=\"https://pubmed.ncbi.nlm.nih.gov/23480871/\">[4]</a></sup> Austin PJ, et al. DRP1 peptide inhibitors in neurodegenerative models. J Neurochem. 2014.\n\n[^5]: <sup><a href=\"https://pubmed.ncbi.nlm.nih.gov/27069067/\">[5]</a></sup> Liu J, et al. Rottlerin and mitochondrial dynamics. Front Cell Neurosci. 2016.\n\n\n## See Also\n\n- Mitochondrial Dynamics\n- Autophagy-Lysosomal Pathway\n- Apoptosis Pathway\n- Alzheimer's Disease\n- Parkinson's Disease\n- Amyotrophic Lateral Sclerosis\n- Huntington's Disease\n- Dynamin Proteins\n\n## External Links\n\n- [UniProt: DRP1](https://www.uniprot.org/uniprot/O00429)\n- [PDB: 3W6N](https://www.rcsb.org/structure/3W6N)\n- [GeneCards: DNM1L](https://www.genecards.org/cgi-bin/carddisp.pl?gene=DNM1L)\n\n\n## See Also\n\n- DNM1L Gene\n- Mitochondrial Dynamics\n- Mitochondrial Dysfunction\n- Mitophagy\n\n## External Links\n\n- [UniProt](https://www.uniprot.org/uniprot/O00429)\n- [NCBI Gene](https://www.ncbi.nlm.nih.gov/gene/1759)", "id": 3461, "title": "DRP1 Protein"}
Overview
Drp1 Protein plays an important role in the study of neurodegenerative diseases. This page provides comprehensive information about this topic, including its mechanisms, significance in disease processes, and therapeutic implications.
Background
The study of Drp1 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.