Structural Classification of Proteins

Fold: Multiheme cytochromes

: variable number of helices and little beta structure; not a true fold

Lineage:

Root: scop
Class: All alpha proteins [46456]
Fold: Multiheme cytochromes [48694]
variable number of helices and little beta structure; not a true fold

Superfamilies:

Multiheme cytochromes [48695] (3)
duplication: contains multiple CxxCH motifs
uperfamily
1. Cytochrome c3-like [48696] (13)
  1. Cytochrome c3 [48697]
    contains four heme groups
    1. Desulfovibrio desulfuricans, different strains [TaxId: 876] [48698] (8)
      SQ Q9L915
    2. Desulfovibrio vulgaris [TaxId: 881] [48699] (11)
      SQ P00132
    3. Desulfovibrio gigas [TaxId: 879] [48700] (3)
    4. Desulfovibrio gigas, di-tetraheme cytochrome c3 [TaxId: 879] [74804] (1)
      disulfide-crosslinked dimer
    5. Desulfovibrio africanus [TaxId: 873] [48701] (2)
    6. Desulfomicrobium norvegicum [TaxId: 52561] [48702] (1)
      synonym: Desulfovibrio desulfuricans Norway
    7. Desulfovibrio baculatus (Desulfomicrobium baculatus) [TaxId: 899] [117036] (1)
      SQ Q6XCI5 # fragment
  2. Cytochrome c7 (cytochrome c551.5, PpcA) [48703]
    contains three heme groups; deletion of one of Cyt c3 heme-binding sites
    1. Desulfuromonas acetoxidans [TaxId: 891] [48704] (8)
    2. Geobacter sulfurreducens, PpcA [TaxId: 35554] [101502] (1)
    3. Geobacter sulfurreducens, GSU1996 [TaxId: 35554] [110039] (1)
      SQ Q74BP5
  3. Nine-heme cytochrome c [48705]
    tandem repeat of two cytochrome c3-like domains with additional heme-binding site in the domain interface
    1. Desulfovibrio desulfuricans, ATCC 27774 [TaxId: 876] [48706] (3)
    2. Desulfovibrio desulfuricans, ATCC 29577 [TaxId: 876] [63634] (1)
  4. 16-heme cytochrome c HmcA [81940]
    tandem repeat of four cytochrome c3-like domains
    1. Desulfovibrio vulgaris [TaxId: 881] [81941] (3)
2. Photosynthetic reaction centre (cytochrome subunit) [48707] (2)
  consists of four heme-binding repeats
  1. Photosynthetic reaction centre (cytochrome subunit) [48708]
    1. Rhodopseudomonas viridis [TaxId: 1079] [48709] (11)
    2. Thermochromatium tepidum [TaxId: 1050] [48710] (1)
3. Di-heme elbow motif [48711] (13)
  the main characteristic feature of this motif is the packing of its two hemes
  many members contains one or more complete motifs flanked by incomplete motifs and/or other domains
  1. Periplasmic nitrate reductase subunit NapB [74805]
    1. Haemophilus influenzae [TaxId: 727] [74806] (1)
    2. Rhodobacter sphaeroides [TaxId: 1063] [101503] (1)
  2. Hydroxylamine oxidoreductase, HAO [48712]
    contains 3 complete motifs
    1. Nitrosomonas europaea [TaxId: 915] [48713] (1)
  3. Cytochrome c554 [48714]
    contains 1 complete motif
    1. Nitrosomonas europaea [TaxId: 915] [48715] (3)
  4. Dimeric di-heme split-soret cytochrome c [48716]
    1. Desulfovibrio desulfuricans, ATCC 27774 [TaxId: 876] [48717] (1)
  5. Cytochrome c nitrite reductase [48718]
    1. Sulfurospirillum deleyianum [TaxId: 65553] [48719] (1)
    2. Wolinella succinogenes [TaxId: 844] [48720] (6)
    3. Escherichia coli [TaxId: 562] [74807] (5)
    4. Desulfovibrio desulfuricans [TaxId: 876] [89173] (1)
  6. Flavocytochrome c3 (respiratory fumarate reductase), N-terminal domain [48721]
    1. Shewanella frigidimarina [TaxId: 56812] [48722] (16)
    2. Shewanella putrefaciens [TaxId: 24] [48723] (3)
    3. Shewanella oneidensis [TaxId: 70863] [74808] (3)
  7. Putative Cytochrome c [110040]
    1. Shewanella oneidensis [TaxId: 70863] [110041] (1)
      SQ Q8E9W8 # SO4144