|A service of the U.S. National Library of Medicine®|
On this page:
Reviewed September 2008
What is the official name of the NLRP3 gene?
The official name of this gene is “NLR family, pyrin domain containing 3.”
NLRP3 is the gene's official symbol. The NLRP3 gene is also known by other names, listed below.
Read more about gene names and symbols on the About page.
What is the normal function of the NLRP3 gene?
The NLRP3 gene (also known as CIAS1) provides instructions for making a protein called cryopyrin. Cryopyrin is a member of a family of proteins called nucleotide-binding domain and leucine-rich repeat containing (NLR) proteins, which are found in the fluid inside cells (cytoplasm). Cryopyrin is found mainly in white blood cells and in cartilage-forming cells (chondrocytes).
NLR proteins are involved in the immune system, helping to start and regulate the immune system's response to injury, toxins, or invasion by microorganisms. These proteins recognize specific molecules, become activated, and respond by helping to engage components of the immune system. Cryopyrin recognizes bacterial particles; chemicals such as asbestos, silica, and uric acid crystals; and compounds released by injured cells.
Once activated, groups of cryopyrin molecules assemble themselves along with other proteins into structures called inflammasomes, which are involved in the process of inflammation. Inflammation occurs when the immune system sends signaling molecules as well as white blood cells to a site of injury or disease to fight microbial invaders and facilitate tissue repair.
Does the NLRP3 gene share characteristics with other genes?
The NLRP3 gene belongs to a family of genes called NLR (nucleotide-binding domain and leucine rich repeat containing family).
A gene family is a group of genes that share important characteristics. Classifying individual genes into families helps researchers describe how genes are related to each other. For more information, see What are gene families? in the Handbook.
How are changes in the NLRP3 gene related to health conditions?
Where is the NLRP3 gene located?
Cytogenetic Location: 1q44
Molecular Location on chromosome 1: base pairs 247,415,904 to 247,449,108
(Homo sapiens Annotation Release 107, GRCh38.p2) (
The NLRP3 gene is located on the long (q) arm of chromosome 1 at position 44.
More precisely, the NLRP3 gene is located from base pair 247,415,904 to base pair 247,449,108 on chromosome 1.
See How do geneticists indicate the location of a gene? in the Handbook.
Where can I find additional information about NLRP3?
You and your healthcare professional may find the following resources about NLRP3 helpful.
You may also be interested in these resources, which are designed for genetics professionals and researchers.
What other names do people use for the NLRP3 gene or gene products?
See How are genetic conditions and genes named? in the Handbook.
Where can I find general information about genes?
The Handbook provides basic information about genetics in clear language.
These links provide additional genetics resources that may be useful.
What glossary definitions help with understanding NLRP3?
cartilage ; cytoplasm ; domain ; exon ; familial ; fever ; gene ; immune system ; inflammation ; injury ; kidney ; leucine ; neonatal ; nucleotide ; protein ; receptor ; syndrome ; tissue ; uric acid ; white blood cells
You may find definitions for these and many other terms in the Genetics Home Reference Glossary.
See also Understanding Medical Terminology.
References (10 links)
The resources on this site should not be used as a substitute for professional medical care or advice. Users seeking information about a personal genetic disease, syndrome, or condition should consult with a qualified healthcare professional. See How can I find a genetics professional in my area? in the Handbook.