About the NLRP 12 gene

The NLRP12 gene provides instructions for making a protein called monarch-1. Monarch-1 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). Monarch-1 is found mainly in certain types of white blood cells.

NLR proteins are involved in the immune system, helping to regulate the immune system’s response to injury, toxins, or invasion by microorganisms. Unlike most NLR proteins that promote increased activity by the immune system, monarch-1 stops (inhibits) the release of certain molecules that 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. When this has been accomplished, stopping the inflammatory response helps to prevent damage to the body’s own cells and tissues.

Two mutations in the NLRP12 gene have been identified in families with familial cold autoinflammatory syndrome. These mutations appear to reduce the ability of the monarch-1 protein to inhibit the inflammatory response, resulting in the episodes of fever and inflammation seen in this disorder.

Chromosomal Location

The Cytogenetic Location of the gene is at 19q13.42, which is the long (q) arm of chromosome 19 at position 13.42

Molecular Location: base pairs 53,793,584 to 53,824,403 on chromosome 19 (Homo sapiens Annotation Release 108, GRCh38.p7) (NCBI)

Chromosomal Location or NLRP12 gene
Chromosomal Location

Other names for the gene

  • CLR19.3
  • FCAS2
  • monarch 1
  • Monarch1
  • NACHT, leucine rich repeat and PYD containing 12
  • NACHT, LRR and PYD containing protein 12
  • NALP12
  • NLR family, pyrin domain containing 12
  • nucleotide-binding oligomerization domain, leucine rich repeat and pyrin domain containing 12
  • PAN6
  • PYPAF7
  • PYRIN-containing APAF1-like protein 7
  • regulated by nitric oxide
  • RNO
  • RNO2

Other places for more information

HUGO Gene Nomenclature Committee NLRP12 Symbol Report

U.S. National Institute of Health NLRP12 report

Thanks to Genetics Home Reference at the US National Library of Medicine