E3 ubiquitin-protein ligase ipaH7.8

UniProtKB accession:  P18014

Grouped By:  Matching UniProtKB accession

UniProtKB description:  E3 ubiquitin ligase effector protein that interferes with host's innate immunity (PubMed:30872533, PubMed:34022140, PubMed:34492225, PubMed:36991122, PubMed:36991125, PubMed:36599845). Functions to alter host cell physiology and promote bacterial survival in host tissues (PubMed:30872533, PubMed:34022140, PubMed:34492225). Catalyzes ubiquitination of human gasdermins GSDMB and GSDMD, promoting their degradation by the proteasome, thereby preventing cell death (PubMed:34022140, PubMed:34492225, PubMed:36991122, PubMed:36991125, PubMed:36599845). In contrast, activates host cell pyroptosis in mouse cells: catalyzes ubiquitination of mouse Nlrp1b allele 1 protein, releasing the cleaved C-terminal part of Nlrp1b, which polymerizes and forms the Nlrp1b inflammasome followed by host cell pyroptosis (PubMed:30872533). Does not catalyze ubiquitination of mouse GSDMD (PubMed:36991122, PubMed:36991125, PubMed:36599845).