pfam13376: OmdA (This model is not part of the current CDD release)
Bacteriocin-protection, YdeI or OmpD-Associated
This is a family of archaeal and bacterial proteins predicted to be periplasmic. YdeI is important for resistance to polymyxin B in broth and for bacterial survival in mice upon oral, but not intraperitoneal inoculation, suggesting a role for YdeI in the gastrointestinal tract of mice. Production of the ydeI gene is regulated by the Rcs (regulator of capsule synthesis) phospho-relay system pathway independently of RcsA, and additionally transcription of the protein is regulated by the stationary-phase sigma factor, RpoS (sigma-S). YdeI confers protection against cationic AMPs (Antimicrobial peptides) or bacteriocins in conjunction with the general porin Omp, thus justifying its name of OmdA, for OmpD-Associated protein.
Jiyao W et al.(2023). "The conserved domain database in 2023.",