Cryo-EM structure of ALC1 in an open conformation bound to a PARylated nucleosome pubmed.ncbi.nlm.nih.gov/42159202/ #cryoem

Thanks for sharing our work and for providing excellent grids!

Our atomic resolution structure of Rubisco just got featured in @quantifoil.bsky.social newsletter. Check it out for a beautiful structure, visualized active site protons and novel mechanistic insights into one of the most important and abundant protein on Earth. doi.org/10.64898/2025.12.22.696010

Just over a week left to apply to our postdoc position! Reposts appreciated.

📣 Call for Papers 📣 PBJ will be launching a special issue to coincide with Photosynthesis 2026, guest edited by Ben Long @botbml.bsky.social Watch this space for more information, but in the meantime don't miss your chance to present in-person at ICPR26 👇

Postdoc position available to join my team in Turku, Finland to explore light-activated extracellular electron uptake in microorganisms. Application open until end of June, position starts August-when suitable for best candidate. Please share/apply ats.talentadore.com/apply/tutkij...

Carbon dioxide concentration alters cyanobacterial carboxysome encapsulation and redox state in Synechococcus sp. PCC 7002 rdcu.be/fhiaJ

SAGA1 and SAGA2 localize the starch sheath to the pyrenoid in Chlamydomonas reinhardtii | PNAS www.pnas.org/doi/10.1073/... @pnas.org

Now published @PNASNews! SAGA1 and SAGA2 localize the starch sheath to the pyrenoid in Chlamydomonas reinhardtii www.pnas.org/doi/10.1073/...

Hornwort pyrenoids: a terrestrial exception with engineering lessons. @tarobison.bsky.social @fernway.bsky.social @laura-gunn.bsky.social @jcarlosvillarreal.bsky.social academic.oup.com/plphys/advan...

The small protein SbtC is a functional component of the CO2 concentrating mechanism in Synechocystis sp. PCC 6803 academic.oup.com/plphys/artic...

Polyphosphate acts as an architectural regulator of carbon fixation and nucleoid structure in cyanobacteria www.biorxiv.org/content/10.6...

Cyanobacteria are an ancient clade of phototrophic prokaryotes. But out of all the cyanobacteria available, why did Synechocystis sp. PCC 6803 become the default laboratory model? This #JBacteriology review offers insights: asm.social/2TD

Well done to PhD student Connor Nehls, @ecarmosilva.bsky.social and @doug-orr.bsky.social on new work out in @jxbotany.bsky.social on Rubisco dark inhibition. See the release here by @ripeproject.bsky.social www.linkedin.com/posts/ripepr...

Polyphosphate acts as an architectural regulator of carbon fixation and nucleoid structure in cyanobacteria From the @cellforganized.bsky.social and @savagecatsonly.bsky.social labs www.biorxiv.org/content/10.6...

The structure of intact and active Photosystem II from Arabidopsis thaliana at 2.44 Å resolution Forsman et al. nph.onlinelibrary.wiley.com/share/9CDHKF...

Deadline is April 20th! Let’s get those viruses

Update: carbonic anhydrases in plants, algae, and cyanobacteria academic.oup.com/plphys/artic... @plantphys.bsky.social

Using Cryogenic Electron Tomography (cryoET) to Determine Rubisco Polymerization Constants in α-Carboxysomes www.biorxiv.org/content/10.6...

Molecular mechanism of redox regulation of the alpha-carboxysomal carbonic anhydrase CsoSCA www.biorxiv.org/content/10.64898/2026.04.02.716132v1 #cryoem

Molecular mechanism of redox regulation of the alpha-carboxysomal carbonic anhydrase CsoSCA https://www.biorxiv.org/content/10.64898/2026.04.02.716132v1

Our new preprint on detailing the molecular mechanisms of how the carbonic anhydrase activates it's activity upon encapsulation into alpha-carboxysomes is now live. Congrats to Nikole and @guillawme.fediscience.org.ap.brid.gy !

Molecular mechanism of redox regulation of the alpha-carboxysomal carbonic anhydrase CsoSCA https://www.biorxiv.org/content/10.64898/2026.04.02.716132v1

Molecular mechanism of redox regulation of the alpha-carboxysomal carbonic anhydrase CsoSCA From the incredible team of @cblikstad.bsky.social www.biorxiv.org/content/10.6...

Update: carbonic anhydrases in plants, algae, and cyanobacteria Jim Moroney LSU. academic.oup.com/plphys/advan...

Excited to see the major chapter of my PhD in print! We present a massively-parallel approach for screening CRISPR edits in plants to speed up agricultural test cycles + benchmark genomic LMs. Thanks to my fantastic co-authors and advisors. Link below!

Engineered TnpB genome editors for plants and human cells identified by ribonucleoprotein mutational scanning - @savagecatsonly.bsky.social go.nature.com/4loaOGn

Can CRISPR edits enable precise tuning of plant gene expression? We think: yes. In our newest manuscript, we measured the effects of >30,000 CRISPR-like promoter mutations in sorghum protoplasts.

Mapping cis-regulatory mutations at scale in sorghum enables modulation of gene expression - @savagecatsonly.bsky.social go.nature.com/3O7mDEN

Out today in Nature Biotechnology — a team of IGI scientists including Brian Staskwicz, Kris Nyogi, Dave Savage (Savage Lab), Peggy Lemaux, & first author Evan Groover premier a cell-based method for understanding how #photosynthesis genes can be turned "up" or "down" https://ow.ly/KHWg50YyWbR

Using Cryogenic Electron Tomography (cryoET) to Determine Rubisco Polymerization Constants in α-Carboxysomes www.biorxiv.org/content/10.6...

CyanOperon: an operon building expansion for the CyanoGate MoClo toolkit www.biorxiv.org/content/10.6...

Partitioning of Rubisco activase into the pyrenoidal Rubisco condensate is mediated by a functional protein-protein interaction @omc111.bsky.social www.nature.com/articles/s41...

Partitioning of Rubisco activase into the pyrenoidal Rubisco condensate is mediated by a functional protein-protein interaction www.nature.com/articles/s41... @natcomms.nature.com

The kinetics and mobility of a ParA ATPase drive carboxysome distribution in Halothiobacillus neapolitanus www.biorxiv.org/content/10.6...

Chemist/physician Dr. Maud Menten co-authored the seminal paper 𝘋𝘪𝘦 𝘒𝘪𝘯𝘦𝘵𝘪𝘬 𝘥𝘦𝘳 𝘐𝘯𝘷𝘦𝘳𝘵𝘪𝘯𝘸𝘪𝘳𝘬𝘶𝘯𝘨, 1931. This intro'd the Michaelis–Menten equation (image). It remains a cornerstone of #biochemistry, used in drug design, metabolic studies & enzyme engineering. She was born #OTD in 1879. #WomenInSTEM

The international conference on photosynthesis research will be happening in Liverpool at the end of July. It promises to be a broad and interesting conference about all things photosynthesis! ☀️🌱🥼 Abstract deadlines: 31st March - presentations 15th May - posters Hope to see you there!

Kinase KEY1 controls pyrenoid condensate size throughout the cell cycle by disrupting phase separation interactions Phosphorylation control of Rubisco condensation in pyrenoids! www.nature.com/articles/s41...

Pyrenoid Structure, Function, Evolution, and Characterization Across Diverse Lineages - www.annualreviews.org/content/jour...

Kinase KEY1 controls pyrenoid condensate size throughout the cell cycle by disrupting phase separation interactions www.nature.com/articles/s41... @natcellbio.nature.com

Today in Nature Cell Biology, a collaborative effort across labs (Jonikas, Wingreen, Brangwynne) at Princeton discovers the key to regulating a biomolecular condensate. Congrats to first authors Shan He and Linnea Lemma! molbio.princeton.edu/news/2026/ke...

Now published @natcellbio.nature.com! Kinase KEY1 controls pyrenoid condensate size throughout the cell cycle by disrupting phase separation interactions www.nature.com/articles/s41...

Rubisco velcro! @tarobison.bsky.social www.sciencedaily.com/releases/202...

Our work on #hornwort #pyrenoids is finally out in @science.org! 🎉 We uncovered how hornworts pack their Rubisco into pyrenoids and successfully recreated them in Arabidopsis. A key step toward engineering more efficient photosynthesis in crops @btiscience.bsky.social www.science.org/doi/10.1126/...

[CO2] Alters Cyanobacterial Carboxysome Encapsulation and Redox State www.researchsquare.com/article/rs-4...

🍃🎤🍃 Speaker announcement 🍃🎤🍃 Its that time again... introducing our next set of Invited Speakers for Photosynthesis 2026 🌱 🌿 Join us in Liverpool this July 🌿 ⏰️ Abstract submission for oral presentations closes 31st March Find out more 👉 photosynthesis2026.com #plantscience #ICPR26 🧵1/7

🍃 Invited Speakers 🍃 photosynthesis2026.com Biophysical CO2-concentrating mechanisms 🌿 Martin Jonikas, Princeton University 🌿 Cecilia Blikstad, Uppsala University @mjonikas.bsky.social @cblikstad.bsky.social #ICPR26 #photosynthesis