1.   b.2.6         Cytochrome f, large domain    
                   Common fold of diphtheria toxin/transcription factors/cytochrome f sandwich; 9 strands in 2 sheet; greek-key; subclass of immunoglobin-like fold
                   1cfm  d1cfmb1  B:19-26,31-35,144-155,235-247
                   1ewh  d1ewhb1  B:19-26,31-35,144-155,235-247
                   1e2w  d1e2wb1  B:19-26,31-35,144-155,235-247
                   1e2v  d1e2va1  A:19-26,31-35,144-155,235-247
                   1cfm  d1cfma1  A:19-26,31-35,144-155,235-247
                   1e2z  d1e2zb1  B:19-26,31-35,144-155,235-247
                   1e2z  d1e2zc1  C:19-26,31-35,144-155,235-247
                   1e2z  d1e2za1  A:19-26,31-35,144-155,235-247
                   1e2v  d1e2vb1  B:319-326,331-335,443-455,535-547
                   1e2w  d1e2wa1  A:19-26,31-35,144-155,235-247
                   1ewh  d1ewha1  A:19-26,31-35,143-155,235-247
                   1ewh  d1ewhc1  C:19-26,31-35,144-155,235-247
                   1e2v  d1e2vc1  C:619-626,631-635,744-755,835-847
                   1cfm  d1cfmc1  C:19-26,31-35,144-155,235-247
                   1vf5  d1vf5p1  P:20-27,31-36,145-156,238-250
                   1ci3  d1ci3m1  M:19-26,30-35,145-156,234-246
                   1vf5  d1vf5c1  C:20-27,31-36,145-156,238-250
                   1vf5  d1vf5c1  C:1-10,42-53,70-79,112-117
                   1vf5  d1vf5p1  P:1-10,42-53,70-79,112-117