The sulfur-formation (
suf
) genes play important roles in both photosynthesis and respiration of cyanobacteria, but the organism prioritizes Fe–S clusters for respiration at the expense of photosynthesis.
Iron–sulfur (Fe–S) clusters are important to all living organisms, but their assembly mechanism is poorly understood in photosynthetic organisms. Unlike non-photosynthetic bacteria that rely on the iron–sulfur cluster system, Synechocystis sp. PCC 6803 uses the Sulfur-Formation (SUF) system as its major Fe–S cluster assembly pathway. ...