A presence/absence matrix is generated using protein domain
architecture data for all genomes in SUPERFAMILY. The PAUP
software is used to produce a single, large tree topology using
heuristic parsimony methods. Genome combinations, or specific clades, can be displayed as
if individual trees had been produced. However, this data is extracted from the single
large tree. This produces a higher quality topology than if the trees had been produced
on their own, and allows the trees to be displayed instantly.
> SCOP hierarchy > Sigma2 domain of RNA polymerase sigma factors superfamily
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