Fig. 4From: A census of α-helical membrane proteins in double-stranded DNA viruses infecting bacteria and archaeaProtein length and TM segments. Protein length distribution according to number of TM segments (0 through ≥4) in (a) virus and (b) cellular genomes, and proportion of proteins in each protein length bin for (c) virus and (d) cellular genomes. Protein length values are in units of number of amino acidsBack to article page