Fig. 9. (A) Sequence alignment of cif modules 4 and 7 (see ESI Fig. S28† for nucleotide sequences). Shown are the mean pairwise identities (using Geneious® Version 9.1.5) green: 100%, green-brown: 30–99%, red: <30%. Sliding window size: 10 nt. The red, dashed bar indicates the repeated sequence with identity cut-off = 99%. (B) Homology model of Cif module 7 built with Swiss-Model23 based on the crystal structure of SrfA-C24 with the exchange unit highlighted in pink (see ESI Fig. S29† for protein sequence alignment).
