Transmembrane sensor receptor proteins that are central components of the chemotactic systems of a number of motile bacterial species which include ESCHERICHIA COLI and SALMONELLA TYPHIMURIUM. Methyl-accepting chemotaxis proteins derive their name from a sensory adaptation process which involves methylation at several glutamyl residues in their cytoplasmic domain. Methyl-accepting chemotaxis proteins trigger chemotactic responses across spatial chemical gradients, causing organisms to move either toward favorable stimuli or away from toxic ones.

Synonyms: Methyl Accepting Chemotaxis Protein I, Chemotaxis Protein, Methyl-Accepting, MACP-I, Methyl Accepting Chemotaxis Protein 1, Methyl Accepting Chemotaxis Protein 2, Methyl Accepting Chemotaxis Protein III, Methyl-Accepting Chemotaxis Protein I, MACP-II, Protein, Methyl-Accepting Chemotaxis, Chemotaxis Proteins, Methyl-Accepting, 0, Proteins, Methyl-Accepting Chemotaxis, Methyl Accepting Chemotaxis Protein II, Methyl Accepting Chemotaxis Protein 3, Methyl-Accepting Chemotaxis Protein III, Methyl-Accepting Chemotaxis Proteins, Methyl-Accepting Chemotaxis Protein, Methyl Accepting Chemotaxis Protein, Methyl Accepting Chemotaxis Proteins, Methyl-Accepting Chemotaxis Protein II