sentences:  NOD2
  
  Nucleotide-binding oligomerization domain-containing protein 2 (NOD2), also known as caspase recruitment domain-containing protein 15 (CARD15) or inflammatory bowel disease protein 1 (IBD1), is a protein that in humans is encoded by the "NOD2" gene located on chromosome 16.NOD2 plays an important role in the immune system.