Protein-arginine N-acetylglucosaminyltransferase SseK1

UniProtKB accession:  Q9L9J3

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UniProtKB description:  Protein-arginine N-acetylglucosaminyltransferase effector that disrupts TNF signaling in infected cells, including NF-kappa-B signaling, apoptosis and necroptosis (PubMed:23955153, PubMed:28069818, PubMed:28522607). Acts by catalyzing the transfer of a single N-acetylglucosamine (GlcNAc) to a conserved arginine residue in the death domain of host proteins TRADD and, to a lower extent, FADD: arginine GlcNAcylation prevents homotypic/heterotypic death domain interactions and assembly of the oligomeric TNF-alpha receptor complex, thereby disrupting TNF signaling (PubMed:23955153, PubMed:28069818). Also acts on host proteins without a death domain: catalyzes arginine GlcNAcylation of host GAPDH protein, thereby preventing GAPDH interaction with TRAF2, leading to inhibit NF-kappa-B signaling (PubMed:28522607). Catalyzes GlcNAcylation of host tubulin-folding cofactor TBCB, thereby promoting microtubule stability (PubMed:32366039). Also mediates auto-GlcNAcylation, which is required for activity toward death domain-containing host target proteins (PubMed:32366039).