apocytochrome b apocytochrome b (COB); FUNCTIONS IN: ubiquinol-cytochrome-c reductase activity; INVOLVED IN: aerobic respiration; LOCATED IN: mitochondrion, mitochondrial respiratory chain complex III; EXPRESSED IN: cultured cell; CONTAINS InterPro DOMAIN/s: Cytochrome b/b6 (InterPro:IPR016175), Cytochrome b/b6, C-terminal (InterPro:IPR005798), Di-haem cytochrome, transmembrane (InterPro:IPR016174), Cytochrome b/b6, N-terminal (InterPro:IPR005797); BEST Arabidopsis thaliana protein match is: Di-haem cytochrome, transmembrane;Cytochrome b/b6, C-terminal (TAIR:AT2G07727.1). COB ATMG00220