Required for secretion of esxA and esxB. Protein essB ESSB_STAAU MVKNHNPKNEMQDMLTPLDAEEAAKTKLRLDMREIPKSSIKPEHFHLMYLLEQHSPYFIDAELTELRDSFQIHYDINDNHTPFDNIKSFTKNEKLRYLLNIKNLEEVNRTRYTFVLAPDELFFTRDGLPIAKTRGLQNVVDPLPVSEAEFLTRYKALVICAFNEKQSFDALVEGNLELHKGTPFETKVIEAATLDLLTAFLDEQYQKQEQDYSQNYAYVRKVGHTVFKWVAIGMTTLSVLLIAFLAFLYFSVMKHNERIEKGYQAFVKDDYTQVLNTYDDLDGKKLDKEALYIYAKSYIQTNKQGLEKDKKENLLNNVTPNSNKDYLLYWMELGQGHLDEAINIATYLDDNDITKLALINKLNEIKNNGDLSNDKRSEETKKYNDKLQDILDKEKQVKDEKAKSEEEKAKAKDEKLKQQEENEKKQKEQAQKDKEKRQEAERKK 444 essB