Pasteurella multocida toxin (PMT) inhibits osteoblastic differentiation in mammals and birds. Its N-terminal region binds to target cells, while its C-terminal region, with a Trojan horse-like shape, carries the intracellularly active moiety. The lat ...
Pasteurella multocida toxin (PMT) inhibits osteoblastic differentiation in mammals and birds. Its N-terminal region binds to target cells, while its C-terminal region, with a Trojan horse-like shape, carries the intracellularly active moiety. The latter consists of three distinct domains: C1 (Pfam:PF11647), C2 and C3. This entry represents the larger of these domains, the central region C2, which has 18 helices and nine beta-strands and is organised into two subdomains with typical alpha-beta structures characteristic of nucleotide-binding proteins [1]. This domain is also found in the Ras/Rap1-specific endopeptidase (RRSP), an effector domain from the multifunctional-autoprocessing repeats-in- toxin (MARTX) toxin from Vibrio vulnificus responsible for the disruption of host innate immune defenses during infection [2,3].
