Alignment made by partial protein sequences of the F-type ATPase subunit c (AtpE) and the V-type ATPase subunit K (NtpK). Assignments were made according to Dzioba et al. . Species are highlighted regarding their phylum assignment to Tenericutes (red), Firmicutes (green) or others (violet). Superscripted numbers indicate position in protein sequence. *UF = unknown function.