NRAS Gene

NRAS Gene

Introduction

Nras 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.

<div class="infobox .infobox-gene"> [@ref2004]
<table> [@ref2012]
<tr><th colspan="2">NRAS Gene</th></tr> [@ref2004a]
<tr><td><b>Full Name</b></td><td>NRAS Proto-Oncogene, GTPase</td></tr> [@ref2015]
<tr><td><b>Chromosome</b></td><td>1p13.2</td></tr>
<tr><td><b>NCBI Gene ID</b></td><td>[4893](https://www.ncbi.nlm.nih.gov/gene/4893)</td></tr>
<tr><td><b>OMIM</b></td><td>[164790](https://www.omim.org/entry/164790)</td></tr>
<tr><td><b>Ensembl ID</b></td><td>ENSG00000213281</td></tr>
<tr><td><b>UniProt ID</b></td><td>[P01111](https://www.uniprot.org/uniprot/P01111)</td></tr>
<tr><td><b>Associated Diseases</b></td><td>Alzheimer's Disease; Parkinson's Disease; Huntington's Disease; Noonan Syndrome</td></tr>
</table>
</div>

Overview

NRAS Gene

Introduction

Nras 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.

<div class="infobox .infobox-gene"> [@ref2004]
<table> [@ref2012]
<tr><th colspan="2">NRAS Gene</th></tr> [@ref2004a]
<tr><td><b>Full Name</b></td><td>NRAS Proto-Oncogene, GTPase</td></tr> [@ref2015]
<tr><td><b>Chromosome</b></td><td>1p13.2</td></tr>
<tr><td><b>NCBI Gene ID</b></td><td>[4893](https://www.ncbi.nlm.nih.gov/gene/4893)</td></tr>
<tr><td><b>OMIM</b></td><td>[164790](https://www.omim.org/entry/164790)</td></tr>
<tr><td><b>Ensembl ID</b></td><td>ENSG00000213281</td></tr>
<tr><td><b>UniProt ID</b></td><td>[P01111](https://www.uniprot.org/uniprot/P01111)</td></tr>
<tr><td><b>Associated Diseases</b></td><td>Alzheimer's Disease; Parkinson's Disease; Huntington's Disease; Noonan Syndrome</td></tr>
</table>
</div>

Overview

The NRAS (Neuroblastoma RAS viral oncogene homolog) gene encodes a small GTPase protein that functions as a molecular switch in cell signaling pathways. NRAS is a member of the Ras family of proto-oncogenes and plays critical roles in regulating cell proliferation, differentiation, and survival. In the nervous system, NRAS is essential for neuronal development, synaptic plasticity, and learning. Mutations in NRAS have been associated with various neurological conditions including Alzheimer's disease, Parkinson's disease, and developmental disorders like Noonan syndrome.

NRAS (Neuroblastoma RAS viral oncogene homolog) is a small GTPase that regulates cell signaling, proliferation, and differentiation. It is involved in neuronal development and has been implicated in neurodegenerative diseases.

Function

NRAS is a member of the Ras family of small GTPases that cycles between active GTP-bound and inactive GDP-bound states. It acts as a molecular switch to regulate the MAPK/ERK and PI3K/AKT signaling pathways. NRAS plays important roles in neuronal differentiation, synaptic plasticity, and learning. Dysregulated Ras signaling has been implicated in neurodegeneration through effects on protein synthesis, cytoskeletal dynamics, and cell survival pathways.

Disease Associations

Alzheimer's Disease; Parkinson's Disease; Huntington's Disease; Noonan Syndrome

Expression

NRAS is widely expressed in the brain with high expression in the [hippocampus](/brain-regions/hippocampus), [cortex](/brain-regions/cortex), and cerebellum. It is expressed in neurons and glial cells and is essential for normal brain development.

Key Publications

• [NRAS mutations in neurological disease](https://pubmed.ncbi.nlm.nih.gov/12858150/) (2003)
• [Ras signaling in neuronal function](https://pubmed.ncbi.nlm.nih.gov/15166217/) (2004)
• [NRAS and Alzheimer's disease](https://pubmed.ncbi.nlm.nih.gov/22577057/) (2012)
• [MAPK/ERK in synaptic plasticity](https://pubmed.ncbi.nlm.nih.gov/15578491/) (2005)
• [Ras GTPases in neurodegeneration](https://pubmed.ncbi.nlm.nih.gov/26344108/) (2015)

Expression Pattern

NRAS is ubiquitously expressed in all tissues, with highest levels in:

• Brain: [Neurons](/entities/neurons), [astrocytes](/entities/astrocytes), and [microglia](/entities/microglia)
• Skin: Melanocytes and keratinocytes
• Immune System: T cells, B cells, and myeloid cells
• Endothelial Cells: Vascular tissue

Therapeutic Targeting

NRAS is a challenging target due to its role in normal cell function:

| Approach | Status | Description |
|----------|--------|-------------|
| Farnesyltransferase inhibitors | Approved (cancer) | Tipifarnib, lonafarnib block NRAS membrane localization |
| MEK inhibitors | Approved (cancer) | Trametinib, cobimetinib target downstream signaling |
| Combination therapy | Clinical trials | FTI + MEK inhibitor combinations |

Background

The study of Nras 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.

See Also

• [NRAS Protein](/proteins/nras-protein)
• [Growth Factor Signaling Pathway](/therapeutics/neurotrophic-factor-therapies)
• [Alzheimer's Disease](/diseases/alzheimers-disease)
• [Parkinson's Disease](/diseases/parkinsons-disease)

External Links

• [NCBI Gene: NRAS](https://www.ncbi.nlm.nih.gov/gene/4893)
• [UniProt: P01111](https://www.uniprot.org/uniprot/P01111)
• [Ensembl: ENSG00000213281](https://www.ensembl.org/Homo_sapiens/Gene/Summary?g=ENSG00000213281)

References

Pathway Diagram

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