There are multiple definitions:

1. NTPase domain(English)

   • consists of seven distinct conserved motifs, including the ATP/GTPase specific P-loop; named after NAIP, CIITA, HET-E and TP1
   • CIITA, HET-E, NAIP, TP1, NTP
   • Apoptosis, Transcription
   • https://prosite…y.org/PDOC50837

2. NAIP (neuronal apoptosis inhibitor protein), C2TA (MHC class 2 transcription activator), HET-E (incompatibility locus protein from podospora anserina) and TP1 (telomerase-associated protein(English)

   • IL-17, IL-18, MHC, MSU, IAP, NAIP, NLR, NLRP3, sUA, TP1, UA, CTA2, ACR, ASC, BIR, CARD, CARD8, CKD, CNV, DNMT, EULAR, GWAS, IL-12
   • Rheumatology, Inflammasome, Immunology
   • https://doi.org…39.2023.2168554