{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,27]],"date-time":"2026-10-27T21:15:17Z","timestamp":1793135717728,"version":"4.5.0"},"reference-count":41,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2025,6,10]],"date-time":"2025-06-10T00:00:00Z","timestamp":1749513600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2025,6,10]],"date-time":"2025-06-10T00:00:00Z","timestamp":1749513600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Commun Biol"],"abstract":"<jats:title>Abstract<\/jats:title>\n          <jats:p>A diverse subset of cyanobacteria can transiently modify their photosynthetic machinery during far-red light photoacclimation to drive photosynthesis with less energetic photons (700\u2009nm\u2013800\u2009nm). To achieve this, all the main light-driven components of the photosynthetic apparatus, including their allophycocyanin antenna, are replaced with red-shifted paralogues. Recent studies based on the structure of an incomplete complex provided some insights into the tuning of the far-red phycobiliproteins. Here, we solved the structure of the intact bicylindrical allophycocyanin complex from the cyanobacterium <jats:italic>Chroococcidiopsis thermalis<\/jats:italic> PCC 7203 at a resolution of 2.51\u2009\u00c5 determined by Cryo-electron microscopy single particle analysis. A comparison between conserved structural features in far-red and white light allophycocyanin cores provides insight on the evolutionary adaptations needed to optimize excitation energy transfer in the far-red light adapted photosynthetic apparatus. The reduction in antenna size in far-red photosynthesis suggests a need to optimize membrane packing to increase the number of photosystems and tune the ratio between chlorophyll <jats:italic>f<\/jats:italic> molecules and bilin pigments, while the wider spread in the absorption range of the bilins suggests faster and more efficient excitation energy transfer to far-red Photosystem II by limiting backflow of excitation from the reaction centres to the far-red bilin pigments.<\/jats:p>","DOI":"10.1038\/s42003-025-08326-y","type":"journal-article","created":{"date-parts":[[2025,6,10]],"date-time":"2025-06-10T18:30:27Z","timestamp":1749580227000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Structure of a stripped-down and tuned-up far-red phycobilisome"],"prefix":"10.1038","volume":"8","author":[{"ORCID":"https:\/\/orcid.org\/0009-0005-8681-9088","authenticated-orcid":false,"given":"Giovanni","family":"Consoli","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0005-2058-9574","authenticated-orcid":false,"given":"Ho Fong","family":"Leong","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6964-9196","authenticated-orcid":false,"given":"Geoffry A.","family":"Davis","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tom","family":"Richardson","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Aiysha","family":"McInnes","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8897-0161","authenticated-orcid":false,"given":"James W.","family":"Murray","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7026-2175","authenticated-orcid":false,"given":"Andrea","family":"Fantuzzi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3124-154X","authenticated-orcid":false,"given":"A. William","family":"Rutherford","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2025,6,10]]},"reference":[{"key":"8326_CR1","doi-asserted-by":"publisher","first-page":"2368","DOI":"10.1038\/ismej.2017.98","volume":"11","author":"S Ohkubo","year":"2017","unstructured":"Ohkubo, S. & Miyashita, H. A niche for cyanobacteria producing chlorophyll f within a microbial mat. ISME J. 11, 2368\u20132378 (2017).","journal-title":"ISME J."},{"key":"8326_CR2","doi-asserted-by":"publisher","first-page":"990","DOI":"10.1111\/jpy.12450","volume":"52","author":"E Trampe","year":"2016","unstructured":"Trampe, E. & K\u00fchl, M. Chlorophyll f distribution and dynamics in cyanobacterial beachrock biofilms. J. Phycol. 52, 990\u2013996 (2016).","journal-title":"J. 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