Functional distribution of the proteome of M. tuberculosis Beijing. Proteins present in our MS-database (filled black bars) and our dataset (white bars) were categorized by: A, Functional class categories as given by Tuberculist. B, Bacterial efflux transporter families. ABC, ATP Binding Cassette; MFS, Major Facilitator Superfamily; RND, Resistance Nodulation cell Division; SMR, Small Multidrug Resistance.