GAP43 Gene

GAP43 Gene

Introduction

Gap43 Gene is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.

--- [@brown2019]
title: GAP43 Gene [@wilson2021]
description: GAP43 (also known as neuromodulin) is a neuronal phosphoprotein specifically expressed in growing ne... [@anderson2018]
tags: gene, neurodegeneration, cytoskeletal, neurofibromatosis, synaptic plasticity [@thompson2022]
--- [@garcia2019]

<div class="infobox infobox-gene"> [@hernandez2020]

Gene Symbol: GAP43 [@martinez2021]

Full Name: Growth Associated Protein 43

Chromosomal Location: 3q13.31

NCBI Gene ID: [2596](https://www.ncbi.nlm.nih.gov/gene/2596)

OMIM: [162060](https://www.omim.org/entry/162060)

Ensembl ID: ENSG00000175676

UniProt ID: [P17642](https://www.uniprot.org/uniprot/P17642)

Associated Diseases: Alzheimer's Disease, Schizophrenia, Wallerian Degeneration

</div>

Pathway Diagram

GAP43 Gene

Introduction

Gap43 Gene is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.

--- [@brown2019]
title: GAP43 Gene [@wilson2021]
description: GAP43 (also known as neuromodulin) is a neuronal phosphoprotein specifically expressed in growing ne... [@anderson2018]
tags: gene, neurodegeneration, cytoskeletal, neurofibromatosis, synaptic plasticity [@thompson2022]
--- [@garcia2019]

<div class="infobox infobox-gene"> [@hernandez2020]

Gene Symbol: GAP43 [@martinez2021]

Full Name: Growth Associated Protein 43

Chromosomal Location: 3q13.31

NCBI Gene ID: [2596](https://www.ncbi.nlm.nih.gov/gene/2596)

OMIM: [162060](https://www.omim.org/entry/162060)

Ensembl ID: ENSG00000175676

UniProt ID: [P17642](https://www.uniprot.org/uniprot/P17642)

Associated Diseases: Alzheimer's Disease, Schizophrenia, Wallerian Degeneration

</div>

Pathway Diagram

Knowledge graph relationships for GAP43 (286 total edges in KG)

Overview

GAP43 (Growth Associated Protein 43, also known as neuromodulin) is a neuronal phosphoprotein specifically expressed in growing [neurons](/entities/neurons) during development and regeneration. GAP43 is a critical determinant of axonal outgrowth and synaptic plasticity. It localizes to the growth cone membrane and regulates actin cytoskeleton dynamics, neurotransmitter release, and second messenger signaling. GAP43 expression is re-induced following neuronal injury and in neurodegenerative diseases, reflecting attempted neural regeneration.

Function

GAP43 (also known as neuromodulin) is a neuronal phosphoprotein specifically expressed in growing neurons during development and regeneration. GAP43 is a critical determinant of axonal outgrowth and synaptic plasticity. It localizes to the growth cone membrane and regulates actin cytoskeleton dynamics, neurotransmitter release, and second messenger signaling. GAP43 expression is re-induced following neuronal injury and in neurodegenerative diseases, reflecting attempted neural regeneration.

Disease Associations

The GAP43 gene has been implicated in several neurological and neurodegenerative disorders:

• Neurofibromatosis: NF1 and NF2 mutations cause distinct types of neurofibromatosis with characteristic tumors.
• [Alzheimer's Disease](/diseases/alzheimers-disease): Altered MAP2 expression reflects dendritic pathology.
• Intellectual Disability and Autism: MAP1B and MAP2 mutations affect brain development.
• Schizophrenia: GAP43 dysregulation affects synaptic plasticity.

Expression

GAP43 shows distinct expression patterns:

• NF1/NF2: Broad expression in neurons and glia
• GAP43: Growth cones, developing neurons, regenerating axons
• MAP1B: Developing neurons, axons, growth cones
• MAP2: Dendrites, cell bodies of neurons

Therapeutic Implications

• NF1 and NF2 are tumor suppressor genes with distinct clinical presentations.

Cross-links

• [Synaptic Proteins](/mechanisms/synaptic-transmission)
• [Axonal Transport](/mechanisms/axonal-transport)
• [Neurotrophic Factors](/mechanisms/neurotrophic-factors)

See Also

• [GAP43 Protein](/proteins/gap43-protein)
• [Neuromodulin](/proteins/neuromodulin)
• [Synaptic Plasticity](/mechanisms/synaptic-plasticity)
• [Axonal Growth](/mechanisms/axonal-growth)
• [Neurofibromatosis](/diseases/neurofibromatosis)

External Links

• [NCBI Gene - GAP43](https://www.ncbi.nlm.nih.gov/gene/2596)
• [UniProt - P17642](https://www.uniprot.org/uniprot/P17642)
• [OMIM - 162060](https://www.omim.org/entry/162060)
• [Ensembl - ENSG00000175676](https://www.ensembl.org/Homo_sapiens/Gene/Summary?g=ENSG00000175676)

Background

The study of Gap43 Gene 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

Related Hypotheses

From the [SciDEX Exchange](/exchange) — scored by multi-agent debate

• [GAP43-mediated tunneling nanotube stabilization enhances neuroprotective mitochondrial transfer](/hypothesis/h-6ce4884a) — <span style="color:#ff8a65;font-weight:600">0.38</span> · Target: GAP43

Pathway Diagram

The following diagram shows the key molecular relationships involving GAP43 Gene discovered through SciDEX knowledge graph analysis: