Structural Classification of Proteins

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
uperfamily

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: 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
uperfamily

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
Formate dehydrogenase N, cytochrome (gamma) subunit [75645] (1)