Alkalihalobacillus alcalophilus	-	440015	
Allochromatium vinosum	-	440036	
Allochromatium vinosum	formerly Chromatium vinosum	440015	
Aquifex aeolicus	hyperthermophile Knallgasbacterium	657945	
Bacillus sp. (in: Bacteria)	thermophilic strain PS3	440015, 440021	
Blastochloris viridis	-	440036	
Blastochloris viridis	formerly Rhodopseudomonas viridis	439963, 440005, 440015, 440019, 440021	
Bos taurus	-	395300, 396001, 439942, 439943, 439944, 439945, 439946, 439947, 439948, 439949, 439950, 439952, 439953, 439955, 439956, 439958, 439960, 439961, 439962, 439964, 439966, 439967, 439970, 439975, 439978, 439979, 439980, 439983, 439985, 439986, 439988, 439989, 439990, 439991, 439993, 439995, 440000, 440003, 440005, 440006, 440009, 440012, 440016, 440018, 440020, 440023, 440025, 440026, 440027, 440028, 440029, 440030, 440035, 657683, 658009, 672379, 674163, 685360, 685619, 686076, 724452, 725396, 750065	
Bos taurus	enzyme is part of the cytochrome bc1 complex	658165	
Bradyrhizobium japonicum	-	440015