Machine learning-assisted directed evolution of plant Rubisco www.biorxiv.org/content/10.6...

Machine learning-assisted directed evolution of plant Rubisco

Ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) is foundational to life on Earth, catalyzing carbon dioxide (CO2) fixation to generate biomass. However, Rubisco is a slow and inefficient enz...

biorxiv.org

Engineering Modular Cargo Loading Strategies for Carboxysome-Derived Protein Particles | ACS Synthetic Biology @cellforganized.bsky.social

Engineering Modular Cargo Loading Strategies for Carboxysome-Derived Protein Particles

Bacterial microcompartments (BMCs) are a diverse and widespread class of self-assembling protein-based organelles consisting of a semipermeable protein shell encapsulating an enzymatic core. Isolated ...

pubs.acs.org

#MicrobiologyMonday: Many bacterial species contain specialized subcellular compartments that help organize and protect essential cellular functions. These structures may contribute to pathogen survival and virulence during infection. #mBio: asm.social/2ZP

Chloroplast genome editing of Rubisco boosts photosynthesis and plant growth @utokyo-yamori.bsky.social ! www.nature.com/articles/s41...

Chloroplast genome editing of Rubisco boosts photosynthesis and plant growth - Nature Communications

Rubisco has inherently low catalytic efficiency limiting crop productivity. Here the authors show that chloroplast genome editing can be used to generate substitutions in Arabidopsis rbcL that increas...

nature.com

Functional and structural insights into cyanobacterial CO2 concentrating mechanisms: from compartmentalization to regulation - Zimmer - 2026 - The Plant Journal - Wiley Online Library onlinelibrary.wiley.com/doi/epdf/10.... From @selimlab.bsky.social lab

Functional and structural insights into cyanobacterial CO2 concentrating mechanisms: from compartmentalization to regulation

Life on Earth depends on photosynthetic CO2 fixation via the Calvin–Benson–Bassham cycle to form organic carbon. This process evolved first in cyanobacteria and was later conveyed to eukaryotes, givi...

onlinelibrary.wiley.com

Our coordinator, Maria Agustina Dominguez-Martin, will introduce our @horizoneu.bsky.social project at a knowledge transfer event for biotechnology Master students at @uco.es today! Hear from Tina at 17:00, Co working room, Campus Universitario de Rabanales. #EUInnovation #EarlyCareerResearchers

I'm sure that I'll be a great issue with a wonderful editor @botbml.bsky.social Consider this special issue if you are working on #CO2 metabolism and photosynthesis!

Plant Biotechnology Journal@plantbiotechj.bsky.social · 2mo ago

📣 CALL FOR PAPERS 📣 Engineering Photosynthesis 🍃 🧬 - Special Issue guest edited by Ben Long @botbml.bsky.social Submission deadline: 1st April 2027 Find out more 🔗 buff.ly/IFz7Xlo #plantscience 🧪 @aabiologists.bsky.social @sebiology.bsky.social @wileylifesci.bsky.social

Pyrenoid tubules are essential for supercharging CO₂ fixation, but they're hard to resolve by microscopy. So, we physically expanded cells to see where different proteins go (3 examples below). The central tubule region appears specialized for CO₂ delivery! www.biorxiv.org/content/10.6...

A bifunctional coiled-coil protein generates the membrane-within-condensate architecture of the CO2-fixing pyrenoid @mjonikas.bsky.social lab www.biorxiv.org/content/10.6...

A bifunctional coiled-coil protein generates the membrane-within-condensate architecture of the CO2-fixing pyrenoid

How membranes are integrated into biomolecular condensates is a fundamental question in cell biology. In the algal pyrenoid, an organelle responsible for one-third of global carbon fixation, CO2-deliv...

biorxiv.org

Check out this great review on the bacterial CCM!

Khaled_Selim Lab@selimlab.bsky.social · 2mo ago

Our review on structural mechanisms of #CO2 fixation machinery by #cyanobacteria @theplantjournal.bsky.social is out🎉🎉 When #CO2 is limiting, #cyano concentrate it. Discover how they thrive? @hhu.de @ceplas.bsky.social @mibinet.bsky.social @sfb1381.bsky.social onlinelibrary.wiley.com/doi/10.1111/...

The algal pyrenoid fixes ~1/3 of global carbon, relying on a unique membrane-within-condensate architecture. How is this architecture built? We discovered that the protein MITH1 draws membranes into the pyrenoid condensate by promoting wetting! 🌿💧 www.biorxiv.org/content/10.6...

Watch @guillawme.eurosky.social great talk about our atomic resolution spinach rubisco structure which reveals both protons and dynamics.

Guillaume Gaullier@guillawme.eurosky.social · 2mo ago

I learned so much from watching past editions of @ccpem.bsky.social Spring Symposium, so I agreed to my talk being recorded even though this is stepping well out of my comfort zone (public speaking isn't my strongest skill). Anyway, here is the recording: www.youtube.com/watch?v=AKTf... #CCPEM

I learned so much from watching past editions of @ccpem.bsky.social Spring Symposium, so I agreed to my talk being recorded even though this is stepping well out of my comfort zone (public speaking isn't my strongest skill). Anyway, here is the recording: www.youtube.com/watch?v=AKTf... #CCPEM

Atomic resolution structure of spinach rubisco reveals protons and dynamics | Guillaume Gaullier

YouTube video by CCP-EM

youtube.com

This is a wonderful talk by @guillawme.eurosky.social from @cblikstad.bsky.social Lab If you are interested in CO2 Fixation by RubisCO, then highly recommend to watch youtu.be/AKTfiUu720w?...

Atomic resolution structure of spinach rubisco reveals protons and dynamics | Guillaume Gaullier

YouTube video by CCP-EM

youtu.be

Guillaume Gaullier@guillawme.eurosky.social · 2mo ago

I learned so much from watching past editions of @ccpem.bsky.social Spring Symposium, so I agreed to my talk being recorded even though this is stepping well out of my comfort zone (public speaking isn't my strongest skill). Anyway, here is the recording: www.youtube.com/watch?v=AKTf... #CCPEM

Join us for TPJ WEBINAR to feature our special issue on Plant structure biology @theplantjournal.bsky.social hosted by the amazing Editor-in-chief @katherinedenby.bsky.social Speakers: @cblikstad.bsky.social & @bjornppedersen.bsky.social & Clarisa Álvarez 30 June us02web.zoom.us/webinar/regi...

The Plant Journal@theplantjournal.bsky.social · 2mo ago

🔈 New TPJ webinar with the @globalplantgpc.bsky.social 🌱 New Insights from Plant Structural Biology🌱 Explore how structural biology is advancing plant science With Clarisa Ester Álvarez, @cblikstad.bsky.social & @bjornppedersen.bsky.social 🗓️ June 30 ⏰ 15:00 CEST us02web.zoom.us/webinar/regi...

🔈 New TPJ webinar with the @globalplantgpc.bsky.social 🌱 New Insights from Plant Structural Biology🌱 Explore how structural biology is advancing plant science With Clarisa Ester Álvarez, @cblikstad.bsky.social & @bjornppedersen.bsky.social 🗓️ June 30 ⏰ 15:00 CEST us02web.zoom.us/webinar/regi...

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!

Quantifoil@quantifoil.bsky.social · 3mo ago

HexAuFoil yielded the highest resolution structure (1.25A) of rubisco to date! This Rubisco structure is not only cool but holds promise for a greener future for all of us! Check out the paper: eu1.hubs.ly/H0vrl_H0 Request a quote: www.quantifoil.com/request-quote #HexAuFoil #cryoEM

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.

Lars-Anders Carlson@lacarlson.bsky.social · 3mo ago

Open #postdoc fellowship in my group. Virus replication and cryo-ET. Projects can be tailored to ambitious candidates with diverse backgrounds, so don't hold back from applying! DM for more info. Deadline 22May. Apply here: umustipendie.varbi.com/en/what:job/... #virus #virology #teamtomo #cryoEM

📣 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 👇

Association of Applied Biologists@aabiologists.bsky.social · 3mo ago

Present your work at Photosynthesis 2026! 🍃 📅 26 - 30 July 📍 Liverpool, UK There's just over 1 week left to submit your poster abstracts! ⏰️ Abstract submission closes 15th May ⏰️ Find out more 👉️ photosynthesis2026.com #plantscience #photosynthesis

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...

Post-doctoral researcher, Molecular Plant Biology, at Turku, Finland

We are seeking a Postdoctoral Researcher to investigate extracellular electron uptake in photosynthetic bacteria (cyanobacteria), focusing on underlying molecular mechanisms and regulation, and with c...

ats.talentadore.com

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

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

Most algae enhance their CO2 assimilation by concentrating CO2 within the pyrenoid, a biomolecular condensate of the CO2-fixing enzyme Rubisco. Man...

pnas.org

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

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

Most algae enhance their CO2 assimilation by concentrating CO2 within the pyrenoid, a biomolecular condensate of the CO2-fixing enzyme Rubisco. Man...

pnas.org

Martin Jonikas@mjonikas.bsky.social · 6mo ago

We genetically disconnected starch from the matrix in the algal pyrenoid! A saga1;saga2 double mutant lacks a starch sheath! Our model: SAGA1 & SAGA2 locally initiate starch on the pyrenoid surface by enriching starch precursors. 🌞🦠🔬🔌👀 www.biorxiv.org/content/10.6...

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...

The small protein SbtC is a functional component of the CO2 concentrating mechanism in Synechocystis sp. PCC 6803

A previously non-annotated, CO2-controlled gene was identified in the cyanobacterium Synechocystis sp. PCC 6803 that encodes a small protein contributing t

academic.oup.com

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