Genes involved in the signalling cascade for detection of AI-2 in Vibrio. Abbreviations: OM outer membrane; IM inner membrane; H histidine; D aspartate; HTH helix turn helix motif; sRNA small regulatory RNAs; Hfq chaperone protein. Numbers indicate analyzed organisms that have an orthologous gene for that protein using a reciprocal best hit search strategy, numbers in brackets indicate the number of analysed organisms having a similar gene based on standard blast search.
Sun et al. BMC Evolutionary Biology 2004 4:36 doi:10.1186/1471-2148-4-36