Structural Classification of Proteins

Family: Fumarate reductase respiratory complex cytochrome b subunit, FrdC

: duplication: consists of two structural repeats; the heme-binding sites are related by pseudo two fold symmetry

Lineage:

Root: scop
Class: Membrane and cell surface proteins and peptides [56835]
Does not include proteins in the immune system
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
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
Family: Fumarate reductase respiratory complex cytochrome b subunit, FrdC [56910]
duplication: consists of two structural repeats; the heme-binding sites are related by pseudo two fold symmetry