The involvement of NAD(P)H dehydrogenase subunits, NdhD3 and NdhF3, in high-affinity CO2 uptake in Synechococcus sp PCC7002 gives evidence for multiple NDH-1 complexes with specific roles in cyanobacteria
Random gene tagging was used to obtain new mutants of the marine cyanobacterium, Synechococcus sp. PCC7002, with defects in the CO2-concentrating mechanism (CCM). Two of these mutants, K22 and A41, showed poor growth at limiting CO2. Isolation and sequencing of a 6.6 kb genomic region revealed the existence of five potential protein-coding regions, all arranged in the same transcriptional direction. These regions code for an RbcR homologue, NdhF3 (subunit 5 of type 1 NAD(P)H dehydrogenase;...[Show more]
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