Skip to main content
. Author manuscript; available in PMC: 2015 Jan 15.
Published in final edited form as: Cell Host Microbe. 2014 Jan 15;15(1):47–57. doi: 10.1016/j.chom.2013.12.007

Figure 5. Human gut microbes likely encode at least 27 distinct corrinoid transporter families.

Figure 5

(A) Amino acid sequence identity from >80% of the length aligned between BtuB orthologs from B. thetaiotaomicron (BtuB1-BtuB3), E. coli K-12 (BtuB-Ec), and S. typhimurium LT2 (BtuB-St). (B) Rarefaction analysis on BtuB protein families as defined by a 50% amino acid identity cutoff. The mean number of BtuB families observed as increasing numbers of genomes are sampled is shown as a bold line; standard deviations from 100 permutations are shown with shading. See also Figure S5.