BMC Shell protein trees

Shell protein phylogenetic trees represent an overview of the similarities among each type of BMC shell protein: BMC-P, BMC-H, BMC-Hp (permuted BMC-H), BMC-Ts (trimer, tandem fusion of BMC-H), BMC-Tsp (permuted Ts) and BMC-Tdp (permuted Ts, forms dimers of trimers). They are based on an overall alignment of non-redundant sequences and major subclades were labeled with color names chosen from the xkcd color survey (https://xkcd.com/color/rgb/). Proximity on the tree generally indicates a similar function that could be structural or related to the enzymatic function. Shell proteins from a BMC type therefore do not necessarily cluster in one position but are frequently found all over the tree. Multiple BMC-P usually follow a pattern of one protein each in the orange and grey clade and a third from one of the other major clades.