ELMO1 Protein - Engulfment and Cell Motility 1

ELMO1 Protein — Engulfment and Cell Motility 1

<table class="infobox infobox-protein">
<tr>
<th class="infobox-header" colspan="2">ELMO1 Protein - Engulfment and Cell Motility 1</th>
</tr>
<tr>
<td class="label">Symbol</td>
<td><strong>ELMO1</strong></td>
</tr>
<tr>
<td class="label">Full Name</td>
<td>ELMO1 - Engulfment and Cell Motility 1</td>
</tr>
<tr>
<td class="label">Type</td>
<td>Protein</td>
</tr>
<tr>
<td class="label">UniProt</td>
<td><a href="https://www.uniprot.org/uniprot/?query=ELMO1" target="_blank">Search UniProt</a></td>
</tr>
<tr>
<td class="label">Associated Diseases</td>
<td><a href="/wiki/infection" style="color:#ef9a9a">Infection</a>, <a href="/wiki/inflammation" style="color:#ef9a9a">Inflammation</a></td>
</tr>
<tr>
<td class="label">KG Connections</td>
<td><a href="/atlas" style="color:#4fc3f7">13 edges</a></td>
</tr>
</table>

Introduction

Elmo1 Protein Engulfment And Cell Motility 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.

Overview

ELMO1 (Engulfment and Cell Motility 1) is a cytoplasmic protein that functions as a critical mediator of phagocytosis and cell migration. It works in conjunction with DOCK proteins to activate Rho GTPases, particularly Rac1, to orchestrate actin remodeling during engulfment processes [1]. [@kang2018]

Structure

Protein Architecture

...

ELMO1 Protein — Engulfment and Cell Motility 1

<table class="infobox infobox-protein">
<tr>
<th class="infobox-header" colspan="2">ELMO1 Protein - Engulfment and Cell Motility 1</th>
</tr>
<tr>
<td class="label">Symbol</td>
<td><strong>ELMO1</strong></td>
</tr>
<tr>
<td class="label">Full Name</td>
<td>ELMO1 - Engulfment and Cell Motility 1</td>
</tr>
<tr>
<td class="label">Type</td>
<td>Protein</td>
</tr>
<tr>
<td class="label">UniProt</td>
<td><a href="https://www.uniprot.org/uniprot/?query=ELMO1" target="_blank">Search UniProt</a></td>
</tr>
<tr>
<td class="label">Associated Diseases</td>
<td><a href="/wiki/infection" style="color:#ef9a9a">Infection</a>, <a href="/wiki/inflammation" style="color:#ef9a9a">Inflammation</a></td>
</tr>
<tr>
<td class="label">KG Connections</td>
<td><a href="/atlas" style="color:#4fc3f7">13 edges</a></td>
</tr>
</table>

Introduction

Elmo1 Protein Engulfment And Cell Motility 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.

Overview

ELMO1 (Engulfment and Cell Motility 1) is a cytoplasmic protein that functions as a critical mediator of phagocytosis and cell migration. It works in conjunction with DOCK proteins to activate Rho GTPases, particularly Rac1, to orchestrate actin remodeling during engulfment processes [1]. [@kang2018]

Structure

Protein Architecture

ELMO1 is a modular protein with multiple functional regions: [@zhang2020]

• Molecular Weight: ~85 kDa
• Structure: Multiple domains mediating protein-protein interactions

Functional Domains

N-terminal Domain: Contains a proline-rich region andArmadillo repeats

PH Domain: Phosphoinositide binding

C-terminal Region: Mediates interaction with DOCK proteins

Function

Phagocytosis

ELMO1 is essential for efficient phagocytosis: [@fitzgerald2019]

Apoptotic Cell Clearance: Mediates recognition and engulfment of apoptotic cells [2]

Phagosome Formation: Helps form the phagocytic cup through actin polymerization

Rac1 Activation: Recruits and activates Rac1 via DOCK proteins

Actin Remodeling: Orchestrates actin cytoskeleton changes

Cellular Processes

ELMO1 participates in several cellular processes: [@gao2017]

• Cell Migration: Required for cell motility in various cell types
• Neuronal Development: Involved in neuronal migration and process extension
• Immune Cell Function: Critical for macrophage and microglial phagocytosis

Microglial Function

In [microglia](/cell-types/microglia-neuroinflammation), ELMO1 is particularly important: [@hochreiterhufford2013]

• Synaptic Pruning: Mediates developmental synaptic elimination [3]
• Aggregate Clearance: Engulfs protein aggregates and cellular debris
• Immune Surveillance: Supports microglial scanning and response

Role in Disease

Parkinson's Disease

ELMO1 has been implicated in PD through microglial function: [@martinez2019]

[Alpha-synuclein](/proteins/alpha-synuclein) Clearance: Microglial phagocytosis of alpha-synuclein requires ELMO1 [4]

Neuroinflammation: Contributes to microglial activation states

Genetic Associations: ELMO1 variants may modify PD risk

Alzheimer's Disease

Amyloid Clearance: Mediates microglial phagocytosis of [amyloid-beta](/proteins/amyloid-beta) [5]

Synaptic Pruning: May contribute to synaptic loss in AD

Neuroinflammation: Dysregulated function promotes harmful inflammation

Amyotrophic Lateral Sclerosis

Debris Clearance: Clears cellular debris from degenerating [neurons](/entities/neurons)

Neuroinflammation: Modulates microglial responses

Disease Progression: May influence rate of progression

Therapeutic Implications

ELMO1 represents a potential therapeutic target: [@brahma2016]

• Modulating Phagocytosis: Enhancing beneficial clearance while limiting harmful inflammation
• Microglial Function: Targeting ELMO1 may help balance microglial responses

Key Publications

[Brugnera et al., ELMO function (2002)](https://doi.org/10.1038/415509a)

[Cox et al., Phagocytosis mechanism (2001)](https://doi.org/10.1083/jcb.200108156)

[Schafer et al., Synaptic pruning (2012)](https://doi.org/10.1016/j.neuron.2012.03.026)

[Bliederhaeuser et al., Microglia in PD (2016)](https://doi.org/10.1016/j.nbd.2016.05.004)

[Huang et al., ELMO1 in AD (2019)](https://doi.org/10.1186/s40478-019-0720-8)

See Also

• [ELMO1 Gene](/genes/elmo1)
• [ELMO Proteins](/entities/elmo-proteins)
• [Phagocytosis](/mechanisms/phagocytosis)
• [Microglia](/cell-types/microglia)
• [Neuroinflammation](/mechanisms/neuroinflammation)

Background

The study of Elmo1 Protein Engulfment And Cell Motility 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.

External Links

• [PubMed](https://pubmed.ncbi.nlm.nih.gov/) - Biomedical literature
• [Alzheimer's Disease Neuroimaging Initiative](https://adni.loni.usc.edu/) - Research data
• [Allen Brain Atlas](https://brain-map.org/) - Brain gene expression data

References

Wang et al., ELMO1 in phagocytosis and cell migration (Cell, 2005) (2005)

Kang et al., ELMO1 in neuronal development and regeneration (Developmental Neurobiology, 2018) (2018)

Zhang et al., ELMO1 in Parkinson's disease and alpha-synuclein clearance (Autophagy, 2020) (2020)

Fitzgerald et al., ELMO1 in neuroinflammation and microglia activation (Journal of Neuroinflammation, 2019) (2019)

Unknown, Gao & Chen, ELMO1 in cell death and survival pathways (Cell Death & Disease, 2017) (2017)

Unknown, Hochreiter-Hufford & Ravichandran, ELMO1 and apoptotic cell clearance (Cold Spring Harbor Perspectives in Biology, 2013) (2013)

Unknown, Martinez & Ng, ELMO1 in immune signaling and neurodegeneration (Frontiers in Cellular Neuroscience, 2019) (2019)

Unknown, Brahma & Kumar, ELMO1 in cytoskeletal dynamics (Cellular and Molecular Life Sciences, 2016) (2016)