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Article

SAGA1 and SAGA2 localize the starch sheath to the pyrenoid in Chlamydomonas reinhardtii.

Proceedings of the National Academy of Sciences of the United States of America - 12 May 2026

Crans Victoria L, Burton Micah I, Garde Aastha, Wang Lianyong, Jonikas Martin C

Abstract excerpt

Most algae enhance their CO2 assimilation by concentrating CO2 within the pyrenoid, a biomolecular condensate of the CO2-fixing enzyme Rubisco. Many pyrenoids are surrounded by a starch sheath thought to slow the escape of CO2 from the pyrenoid, but how the starch sheath is localized to the pyrenoid remains poorly understood. Here, in the model alga Chlamydomonas reinhardtii, we find that the protein SAGA2 is...

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Identifiers

PMID: 42090253
DOI: 10.1073/pnas.2533609123
PMCID: PMC13167743

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026.

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