MobI is conserved across conjugative plasmids of incompatibility group C (IncC), integrative conjugative elements of the SXT/R391 family and numerous genomic islands mobilized by IncC plasmids. Alongside a relaxase of the MOBH1 family, this protein is essential to conjugative transfer of these elements and is likely a relaxosome component involved in recognition of the origin of transfer [1,2,3,4,5].

1: Antibiotic Resistance in Vibrio cholerae: Mechanistic Insights from IncC Plasmid-Mediated Dissemination of a Novel Family of Genomic Islands Inserted at trmE. Rivard N, Colwell RR, Burrus V; mSphere. 2020; [Epub ahead of print] PMID:32848007

2: Identification of the origin of transfer (oriT) and a new gene required for mobilization of the SXT/R391 family of integrating conjugative elements. Ceccarelli D, Daccord A, Rene M, Burrus V; J Bacteriol. 2008;190:5328-5338. PMID:18539733

3: Development of pVCR94DeltaX from Vibrio cholerae, a prototype for studying multidrug resistant IncA/C conjugative plasmids. Carraro N, Sauve M, Matteau D, Lauzon G, Rodrigue S, Burrus V; Front Microbiol. 2014;5:44. PMID:24567731

4: Identification of oriT and a recombination hot spot in the IncA/C plasmid backbone. Hegyi A, Szabo M, Olasz F, Kiss J; Sci Rep. 2017;7:10595. PMID:28878309

5: The diversity of conjugative relaxases and its application in plasmid classification. Garcillan-Barcia MP, Francia MV, de la Cruz F; FEMS Microbiol Rev. 2009;33:657-687. PMID:19396961