This entry represents the phosphodiesterase (PDE) domain found in the bacterial ubiquitinating enzymes, which belong to the SidE family. This domain catalyses the conjugation of ADP-ribosylated ubiquitin (ADPR-Ub), previously synthesised by the mono- ...
This entry represents the phosphodiesterase (PDE) domain found in the bacterial ubiquitinating enzymes, which belong to the SidE family. This domain catalyses the conjugation of ADP-ribosylated ubiquitin (ADPR-Ub), previously synthesised by the mono-ADP-ribosyltransferase (mART) domain, to a serine residue on substrates to generate a protein-phosphoribosyl-Ub (PR-Ub) product. These pathogen proteins are secreted bacterial effector proteins, which are translocated inside the host cell using the Dot/Icm secretion system [1,2]. The SidE family of enzymes carry out ubiquitination of host cell proteins in an E1/E2-independent manner [2,3].
This family contains a number of ubiquitin-like proteins: SUMO (smt3 homologue) (see Swiss:Q02724), Nedd8 (see Swiss:P29595), Elongin B (see Swiss:Q15370), Rub1 (see Swiss:Q9SHE7), and Parkin (see Swiss:O60260). A number of them are thought to carry ...
This family contains a number of ubiquitin-like proteins: SUMO (smt3 homologue) (see Swiss:Q02724), Nedd8 (see Swiss:P29595), Elongin B (see Swiss:Q15370), Rub1 (see Swiss:Q9SHE7), and Parkin (see Swiss:O60260). A number of them are thought to carry a distinctive five-residue motif termed the proteasome-interacting motif (PIM), which may have a biologically significant role in protein delivery to proteasomes and recruitment of proteasomes to transcription sites [5].