Proteomics

Dataset Information

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Photosystem I Structural Fusion with IsiA Enhances Light-Harvesting Capabilities of Filamentous Cyanobacterium During Iron Deficiency


ABSTRACT: Iron deficiency impairs energy capture and photosynthetic electron transport, leading to remodeling of photosynthetic complexes, mainly impacting photosystem I. In Anabaena sp. PCC 7120, this remodeling includes a change in the oligomeric state of PSI and the formation of a unique antenna system with covalently attached IsiA2-PSI complex, along with other IsiA homologs. This study describes the spectroscopic properties of three types of IsiA2-containing complexes and details their energy-transfer efficiency. Based on spectral data and Mass-Spec analysis of these complexes, a proposed model suggests that antenna modulation, influenced by the intracellular redox state, could regulate PSI activity during iron stress.

INSTRUMENT(S):

ORGANISM(S): Nostoc Sp. Pcc 7120 = Fachb-418

TISSUE(S): Whole Body

DISEASE(S): Disease Free

SUBMITTER: Kuo-En Chen  

LAB HEAD: Kuo-En Chen

PROVIDER: PXD072813 | Pride | 2026-08-03

REPOSITORIES: Pride

Dataset's files

Source:
Action DRS
B1-1-1.raw Raw
B1-1-2.raw Raw
B1-1.mgf Mgf
B1-1.mzML Mzml
B1-1.mzid Mzid
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