Fig. 7
From: Phage spanins: diversity, topological dynamics and gene convergence
Statistical analysis of cysteines in spanins. a: Histogram showing the distribution of periplasmic cysteines in o-spanins w.r.t number of cysteines in their i-spanin counterparts. X-axis indicates the number of cysteines in i-spanins while the Y-axis indicates the number of spanin systems with that combination of periplasmic cysteines in i- and o-spanins. Red, blue, green, purple and yellow indicate the populations with 0,1,2,3, or 4 cysteines in the o-spanin. b: Histogram showing the distance distribution of periplasmic cysteines in spanins closest to the OM (grey bars) and IM (white bars). c: Histogram showing the distance distribution of periplasmic cysteines in spanins; closest cysteine from the OM in o-spanin (yellow bars), closest cysteine from the IM in i-spanin (green bars), closest cysteine from the C-terminal interaction site in o-spanin (blue bars) and closest cysteine from the C-terminal interaction site in i-spanin (red bars). d: Histogram showing the distance distribution of periplasmic cysteines in spanin from the OM (grey bars) and C-terminal interaction site (white bars) in spanin systems with only one periplasmic cysteine