Structural Classification of Proteins
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Superfamily: Transmembrane di-heme cytochromes

Three of the four heme-ligands are conserved between the two families; both heme groups bind similarly but not identically
link to SUPERFAMILY database - Superfamily

Lineage:

  1. Root: scop
  2. Class: Membrane and cell surface proteins and peptides [56835]
    Does not include proteins in the immune system
  3. Fold: Heme-binding four-helical bundle [81344]
    core: four transmembrane helices, up-and-down bundle, binds one or two heme groups in between the helices
  4. Superfamily: Transmembrane di-heme cytochromes [81342]
    Three of the four heme-ligands are conserved between the two families; both heme groups bind similarly but not identically
    link to SUPERFAMILY database - Superfamily

Families:

  1. Cytochrome b of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) [81642] (5)
    a part (domain) of a larger mitochondrial cytochrome b subunit, separate subunit in plants and cyanobacteria
    1. Mitochondrial cytochrome b subunit, N-terminal domain [81641]
      also includes extra transmembrane (linker) helix absent in plants and cyanobacteria subunits
      1. Cow (Bos taurus) [TaxId: 9913] [81638] (17)
        SQ P00157
        1. 1ppj picpicxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxref
          complexed with any, azi, bhg, cdl, fes, gol, hec, hem, pee, po4, sma
          1. region c:15-260 [104257] picpiclink
          2. region p:15-260 [104272] picpiclink
        2. 1pp9 picpicxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxref
          complexed with azi, bhg, cdl, fes, gol, hec, hem, pee, po4, sma, uq
          1. region c:15-260 [104227] picpiclink
          2. region p:15-260 [104242] picpiclink
        3. 2fyu picpicxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxref
          automatically matched to d1be3c3
          complexed with fdn, fes, hem
          1. region c:2-260 [134397] picpiclink
        4. 1ntm picpicxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxref
          complexed with fes, hem
          1. region c:2-260 [92126] picpiclink
        5. 1ntz picpicxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxref
          complexed with fes, hem, uq2
          1. region c:2-260 [92154] picpiclink
        6. 1l0l picpicxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxref
          complexed with fes, fmx, hem
          1. region c:3-260 [84487] picpiclink
        7. 1sqx picpicxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxref
          automatically matched to d1be3c3
          complexed with fes, hem, sma, uq2
          1. region c:2-260 [119040] picpiclink
        8. 1ntk picpicxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxref
          complexed with ay1, fes, hem
          1. region c:2-260 [92110] picpiclink
        9. 1l0n picpicxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxref
          complexed with fes, hem
          1. region c:3-260 [84503] picpiclink
        10. 1sqb picpicxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxref
          complexed with azo, fes, hem
          1. region c:2-260 [105895] picpiclink
        11. 1sqv picpicxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxref
          automatically matched to d1be3c3
          complexed with fes, hem, uhd, uq2
          1. region c:2-260 [119025] picpiclink
        12. 1sqp picpicxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxref
          automatically matched to d1be3c3
          complexed with cdl, fes, hem, myx, pee, plx
          1. region c:2-260 [119000] picpiclink
        13. 1sqq picpicxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxref
          automatically matched to d1be3c3
          complexed with fes, hem, ost, uq2
          1. region c:2-260 [119012] picpiclink
        14. 1nu1 picpicxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxref
          complexed with fes, hem, qno
          1. region c:2-260 [92172] picpiclink
        15. 1be3 picpicxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxref
          complexed with fes, hec, hem
          1. region c:1-260 [75806] picpiclink
        16. 1bgy picpicxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxref
          complexed with fes, hec, hem
          1. region c:1-260 [75808] picpiclink
          2. region o:1-260 [75810] picpiclink
        17. 1qcr picpicxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxref
          complexed with hem
          1. region c:2-260 [75932] picpiclink
      2. Chicken (Gallus gallus) [TaxId: 9031] [81639] (5)
        1. 1bcc picpicxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxref
          complexed with bog, fes, hem, pee, u10
          1. region c:2-261 [75804] picpiclink
        2. 2bcc picpicxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxref
          complexed with bog, fes, hem, pee, sig, u10
          1. region c:2-261 [75988] picpiclink
        3. 3cwb picpicxrefxref
          automatically matched to d1bccc3
          complexed with azi, bog, cdl, fes, hec, hem, icx, pee, unl, uq
          1. region c:2-261 [157046] picpiclink
        4. 3cwb picpicxrefxref
          automatically matched to d1bccc3
          complexed with azi, bog, cdl, fes, hec, hem, icx, pee, unl, uq
          1. region p:2-261 [157048] picpiclink
        5. 3bcc picpicxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxref
          complexed with amy, fes, hem, sig
          1. region c:2-261 [75999] picpiclink
      3. Baker's yeast (Saccharomyces cerevisiae) [TaxId: 4932] [81640] (9)
        1. 3cx5 picpicxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxref
          automatically matched to d1ezvc3
          complexed with 6ph, 7ph, 8pe, 9pe, cn3, cn5, fes, hem, m3l, sma, suc, umq
          1. region c:1-261 [157081] picpiclink
        2. 3cx5 picpicxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxref
          automatically matched to d1ezvc3
          complexed with 6ph, 7ph, 8pe, 9pe, cn3, cn5, fes, hem, m3l, sma, suc, umq
          1. region n:1-261 [157097] picpiclink
        3. 1kb9 picpicxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxref
          complexed with cdl, fes, hem, pcf, pef, pie, sma, umq, uq6
          1. region c:1-261 [77316] picpiclink
        4. 2ibz picpicxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxref
          automatically matched to d1ezvc3
          complexed with fes, hem, sma, uq6
          1. region c:1-261 [137220] picpiclink
        5. 1ezv picpicxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxref
          complexed with fes, hem, sma, uq6
          1. region c:1-261 [75834] picpiclink
        6. 3cxh picpicxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxref
          automatically matched to d1ezvc3
          complexed with 6ph, 7ph, 8pe, 9pe, cn6, fes, hem, m3l, sma, suc, umq
          1. region c:1-261 [157114] picpiclink
        7. 3cxh picpicxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxref
          automatically matched to d1ezvc3
          complexed with 6ph, 7ph, 8pe, 9pe, cn6, fes, hem, m3l, sma, suc, umq
          1. region n:1-261 [157130] picpiclink
        8. 1p84 picpicxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxref
          complexed with 3pe, 3ph, cdl, dbt, fes, hem, pc1, umq, uq6
          1. region c:1-261 [87855] picpiclink
        9. 1kyo picpicxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxref
          complexed with fes, hem, m3l, sma
          1. region c:1-261 [75905] picpiclink
          2. region n:1-261 [75907] picpiclink
    2. Cytochrome b6 subunit of the cytochrome b6f complex [103498]
      1. Mastigocladus laminosus [TaxId: 83541] [103499] (6)
        1. 2e74 picpicxrefxrefxrefxrefxrefxrefxref
          automatically matched to d1vf5a_
          complexed with bcr, cd, cla, fes, hem, opc, sqd, umq
          1. region a:13-214 [132048] picpiclink
        2. 1vf5 picpicxrefxrefxrefxrefxrefxrefxrefxrefxrefxref
          complexed with bcr, cla, fes, hem, opc, pl9, tds
          1. chain a [100578] picpiclink
          2. chain n [100589] picpiclink
        3. 2e76 picpicxrefxrefxrefxrefxrefxrefxref
          automatically matched to d1vf5a_
          complexed with bcr, cd, cla, fes, hem, opc, sqd, tds, umq
          1. region a:13-214 [132058] picpiclink
        4. 2e75 picpicxrefxrefxrefxrefxrefxrefxref
          automatically matched to d1vf5a_
          complexed with bcr, cd, cla, fes, hem, opc, qno, sqd, umq
          1. region a:13-214 [132053] picpiclink
        5. 2d2c picpicxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxref
          automatically matched to d1vf5a_
          complexed with bcr, bnt, cla, fes, hec, hem, opc
          1. region a:13-214 [131161] picpiclink
        6. 2d2c picpicxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxrefxref
          automatically matched to d1vf5a_
          complexed with bcr, bnt, cla, fes, hec, hem, opc
          1. region n:13-214 [131167] picpiclink
      2. Chlamydomonas reinhardtii [TaxId: 3055] [103500] (1)
        1. 1q90 picpicxrefxrefxrefxrefxrefxrefxrefxrefxrefxref
          complexed with bcr, cl1, fes, hem, lfa, lmg, sqd, tds; mutant
          1. chain b [96241] picpiclink
  2. Formate dehydrogenase N, cytochrome (gamma) subunit [75645] (1)
    1. Formate dehydrogenase N, cytochrome (gamma) subunit [75646]
      1. Escherichia coli [TaxId: 562] [75647] (2)
        1. 1kqf picpicxrefxrefxrefxref
          complexed with 6mo, cdl, cse, fs4, hem, mgd
          1. chain c [72874] picpiclink
        2. 1kqg picpicxrefxrefxrefxref
          complexed with 6mo, cdl, cse, fs4, hem, hq, mgd
          1. chain c [72878] picpiclink
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MRC site Generated from scop database 1.75 with scopm 1.101 on Wed Jun 3 10:42:06 2009
Copyright © 1994-2009 The scop authors / scop@mrc-lmb.cam.ac.uk