Unique role for translation initiation factor 3 in the light color regulation of photosynthetic gene expression.

ABSTRACT: Light-harvesting antennae are critical for collecting energy from sunlight and providing it to photosynthetic reaction centers. Their abundance and composition are tightly regulated to maintain efficient photosynthesis in changing light conditions. Many cyanobacteria alter their light-harvesting antennae in response to changes in ambient light-color conditions through the process of chromatic acclimation. The control of green light induction (Cgi) pathway is a light-color-sensing system that controls the expression of photosynthetic genes during chromatic acclimation, and while some evidence suggests that it operates via transcription attenuation, the components of this pathway have not been identified. We provide evidence that translation initiation factor 3 (IF3), an essential component

SUBMITTER: Gutu A 

PROVIDER: S-EPMC3791720 | biostudies-literature | 2013 Oct

REPOSITORIES: biostudies-literature