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. Author manuscript; available in PMC: 2008 Oct 5.
Published in final edited form as: J Mol Biol. 2007 Aug 2;372(5):1305–1319. doi: 10.1016/j.jmb.2007.07.052

Figure 4. Conservation of apocytochrome B (‘cob’) gene from sequenced microbial genomes, and position of known inserted group I introns.

Figure 4

For the A.n. cob protein sequence, a set of homologous sequences was collected using an iterative PSI-BLAST search of the non-redundant protein sequence database. A multiple sequence alignment was made from the blast output, allowing the for the calculation of information content (IC) at each position. The IC values were linearly normalized from zero to 1, with zero corresponding to the least conserved position and 1 corresponding to the most conserved positions. The arrows point to conserved regions of the host gene targeted by I-CsmI and I-AniI.