Chemotactic-signal transducers respond to changes in the concentration of attractants and repellents in the environment, transduce a signal from the outside to the inside of the cell, and facilitate sensory adaptation through variation of methylation levels. Attractants increase the level of methylation while repellents decrease the level of methylation. Found predominantly at cell poles. There are over 60 methyl-accepting chemotaxis proteins in this bacterium. Belongs to the methyl-accepting chemotaxis (MCP) protein family.