NLRP1 Protein

NLRP1 Protein

Introduction

<table class="infobox infobox-protein">
<tr>
<th class="infobox-header" colspan="2">NLRP1 Protein</th>
</tr>
<tr>
<td class="label">Protein Name</td>
<td>NLRP1 (NLR Family Pyrin Domain Containing 1)</td>
</tr>
<tr>
<td class="label">Gene Symbol</td>
<td>NLRP1</td>
</tr>
<tr>
<td class="label">Chromosomal Location</td>
<td>17p13.2</td>
</tr>
<tr>
<td class="label">UniProt ID</td>
<td>Q9Y258</td>
</tr>
<tr>
<td class="label">Molecular Weight</td>
<td>~213 kDa</td>
</tr>
<tr>
<td class="label">Protein Length</td>
<td>1839 amino acids</td>
</tr>
<tr>
<td class="label">Subcellular Localization</td>
<td>Cytoplasm, nucleus (perinuclear)</td>
</tr>
<tr>
<td class="label">Drug</td>
<td>Mechanism</td>
</tr>
<tr>
<td class="label">MCC950</td>
<td>Direct [NLRP3](/entities/nlrp3-inflammasome)/NLRP1 inhibition</td>
</tr>
<tr>
<td class="label">Dapansutrile (OLT1177)</td>
<td>NLRP3/NLRP1 inhibition</td>
</tr>
<tr>
<td class="label">Tranilast</td>
<td>NLRP3/NLRP1 inhibition</td>
</tr>
<tr>
<td class="label">Associated Diseases</td>
<td><a href="/wiki/aging" style="color:#ef9a9a">Aging</a>, <a href="/wiki/als" style="color:#ef9a9a">Als</a>, <a href="/wiki/alzheimer" style="color:#ef9a9a">Alzheimer</a>, <a href="/wiki/autoimmune" style="color:#ef9a9a">Autoimmune</a>, <a href="/wiki/cancer" style="color:#ef9a9a">Cancer</a></td>
</tr>
<tr>
<td class="label">KG Connections</td>

NLRP1 Protein

Introduction

<table class="infobox infobox-protein">
<tr>
<th class="infobox-header" colspan="2">NLRP1 Protein</th>
</tr>
<tr>
<td class="label">Protein Name</td>
<td>NLRP1 (NLR Family Pyrin Domain Containing 1)</td>
</tr>
<tr>
<td class="label">Gene Symbol</td>
<td>NLRP1</td>
</tr>
<tr>
<td class="label">Chromosomal Location</td>
<td>17p13.2</td>
</tr>
<tr>
<td class="label">UniProt ID</td>
<td>Q9Y258</td>
</tr>
<tr>
<td class="label">Molecular Weight</td>
<td>~213 kDa</td>
</tr>
<tr>
<td class="label">Protein Length</td>
<td>1839 amino acids</td>
</tr>
<tr>
<td class="label">Subcellular Localization</td>
<td>Cytoplasm, nucleus (perinuclear)</td>
</tr>
<tr>
<td class="label">Drug</td>
<td>Mechanism</td>
</tr>
<tr>
<td class="label">MCC950</td>
<td>Direct [NLRP3](/entities/nlrp3-inflammasome)/NLRP1 inhibition</td>
</tr>
<tr>
<td class="label">Dapansutrile (OLT1177)</td>
<td>NLRP3/NLRP1 inhibition</td>
</tr>
<tr>
<td class="label">Tranilast</td>
<td>NLRP3/NLRP1 inhibition</td>
</tr>
<tr>
<td class="label">Associated Diseases</td>
<td><a href="/wiki/aging" style="color:#ef9a9a">Aging</a>, <a href="/wiki/als" style="color:#ef9a9a">Als</a>, <a href="/wiki/alzheimer" style="color:#ef9a9a">Alzheimer</a>, <a href="/wiki/autoimmune" style="color:#ef9a9a">Autoimmune</a>, <a href="/wiki/cancer" style="color:#ef9a9a">Cancer</a></td>
</tr>
<tr>
<td class="label">KG Connections</td>
<td><a href="/atlas" style="color:#4fc3f7">164 edges</a></td>
</tr>
</table>

Nlrp1 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.

Overview

NLRP1 (NLR Family Pyrin Domain Containing 1) is a protein encoded by the NLRP1 gene that functions as a pattern recognition receptor forming the NLRP1 inflammasome. This multi-protein complex is a critical component of the innate immune system, activating inflammatory caspase-1 and triggering the maturation of pro-inflammatory cytokines IL-1β and IL-18. The NLRP1 inflammasome plays significant roles in neurodegenerative diseases through its involvement in neuroinflammation and pyroptotic cell death. [@heneka2013]

Protein Information

Structure

NLRP1 contains multiple functional domains:

• PYD Domain (1-95 aa): Pyrin domain for homotypic protein interactions
• NACHT Domain (220-450 aa): ATPase domain for oligomerization
• LRR Domain (730-900 aa): Leucine-rich repeats for ligand sensing
• FIIND Domain (120-730 aa): Function-to-find domain with auto-proteolytic activity
• CARD Domain (1550-1839 aa): Caspase recruitment domain for downstream signaling

Molecular Function

Inflammasome Assembly

• Functions as sensor for cellular stress and pathogen-associated molecular patterns (PAMPs)
• Oligomerizes to form the NLRP1 inflammasome complex
• Recruits ASC (PYCARD) through PYD-PYD interactions
• ASC recruits pro-caspase-1 through CARD-CARD interactions

Inflammatory Signaling

• Auto-proteolytic cleavage releases the NLRP1 N-terminal fragment
• Activates caspase-1 to process pro-IL-1β and pro-IL-18
• Triggers pyroptotic cell death through gasdermin D cleavage

Cellular Stress Sensing

• Responds to ATP, potassium efflux, [ROS](/entities/reactive-oxygen-species), and mitochondrial dysfunction
• Detects pathogen-derived molecules and toxins
• Monitors cellular homeostasis disturbances

Role in Disease

Alzheimer's Disease

• NLRP1 inflammasome activation in [microglia](/entities/microglia) contributes to chronic neuroinflammation
• Amyloid-β oligomers can activate the NLRP1 inflammasome pathway
• IL-1β elevation correlates with disease severity and progression
• Genetic variants may modify AD risk

Parkinson's Disease

• NLRP1/3 inflammasome activation in dopaminergic [neurons](/entities/neurons)
• Mitochondrial dysfunction triggers NLRP1-mediated inflammation
• [α-Synuclein](/proteins/alpha-synuclein) aggregation activates inflammasome pathway
• Contributes to progressive dopaminergic neuron loss

Amyotrophic Lateral Sclerosis

• NLRP1 polymorphisms associated with ALS susceptibility
• Inflammasome activation in motor neurons
• [TDP-43](/proteins/tdp-43) pathology linked to NLRP1 inflammasome
• Environmental triggers may initiate NLRP1-mediated inflammation

Therapeutic Targeting

Small Molecule Inhibitors

Biological Approaches

• Anti-IL-1β antibodies (Canakinumab, Anakinra)
• IL-1 receptor antagonists (Anakinra)
• Gene silencing approaches (ASO, siRNA)

Biomarkers

• Active NLRP1 inflammasome: ASC specks in CSF
• IL-1β levels in CSF and plasma
• NLRP1 mRNA expression in blood cells

Key Publications

Background

The study of Nlrp1 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.

Brain Atlas Resources

• [Allen Human Brain Atlas - Gene Expression](https://human.brain-map.org/microarray/search/show?search_term=NLRP1)
• [BrainSpan Atlas of the Developing Human Brain](https://brainspan.org/)

See Also

• [NLRP1 Gene](/genes/nlrp1)
• [Neuroinflammation Pathway](/mechanisms/neuroinflammation-pathway)
• [Alzheimer's Disease](/diseases/alzheimers-disease)
• [Parkinson's Disease](/diseases/parkinsons-disease)
• [Amyotrophic Lateral Sclerosis](/diseases/amyotrophic-lateral-sclerosis)
• [IL-1 Beta](/proteins/il1b-protein)
• [Caspase-1](/proteins/caspase1)
• [Pyroptosis Pathway](/mechanisms/pyroptosis)

External Links

• [UniProt: NLRP1](https://www.uniprot.org/uniprot/Q9Y258)
• [NCBI Protein: NLRP1](https://www.ncbi.nlm.nih.gov/protein/Q9Y258)
• [PDB: NLRP1](https://www.rcsb.org/)
• [GeneCards: NLRP1](https://www.genecards.org/cgi-bin/carddisp.pl?gene=NLRP1)

References