Structural Classification of Proteins
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Superfamily: Fumarate reductase respiratory complex transmembrane subunits

two distinct families: in one family the common fold is contained in a single-chain subunit, in the other it is formed by two chains
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: Fumarate reductase respiratory complex transmembrane subunits [81343]
    two distinct families: in one family the common fold is contained in a single-chain subunit, in the other it is formed by two chains
    link to SUPERFAMILY database - Superfamily

Families:

  1. Fumarate reductase respiratory complex cytochrome b subunit, FrdC [56910] (1) picpic
    duplication: consists of two structural repeats; the heme-binding sites are related by pseudo two fold symmetry
  2. Succinate dehydrogenase/Fumarate reductase transmembrane subunits (SdhC/FrdC and SdhD/FrdD) [81373] (4) picpic
    consists of two homologous non-identical subunits that form a heterodimer; may or may not contain heme groups
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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