This family is involved in biogenesis of respiratory and photosynthetic systems. SCO1 (Swiss:P23833) is required for a post-translational step in the accumulation of subunits COXI and COXII of cytochrome c oxidase [1]. SenC (Swiss:Q52720) is required for optimal cytochrome c oxidase activity and maximal induction of genes encoding the light-harvesting and reaction centre complexes of R. capsulatus [2].

1: Immunological identification of yeast SCO1 protein as a component of the inner mitochondrial membrane. Buchwald P, Krummeck G, Rodel G; Mol Gen Genet 1991;229:413-420. PMID:1944230

2: Cloning and characterization of senC, a gene involved in both aerobic respiration and photosynthesis gene expression in Rhodobacter capsulatus. Buggy J, Bauer CE; J Bacteriol 1995;177:6958-6965. PMID:7592491