Occurrence of cytochrome aa3 in Anacystis nidulans.

The cytochrome content of membrane fragments prepared from the blue-green alga (cyanobacterium) Anacystis nidulans was examined by difference spectrophotometry. Two beta-type cytochromes and hitherto unknown cytochrome alpha could be characterized. In the reduced-minus-oxidised difference spectra the alpha-type cytochrome showed an alpha-band at 605 nm and… CONTINUE READING