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Anthony Vecchiarelli Profile picture
Anthony Vecchiarelli
@CellfOrganized
How do bacteria organize their innards? Asst Prof at UMich.
Aug 12, 2020 • 11 tweets • 4 min read
#Carboxysome positioning is not just for #Cyanobacteria!
New preprint from our lab.

The McdAB system positions α-carboxysomes in proteobacteria

biorxiv.org/content/10.110…

Thread! Carboxysomes are protein-based organelles essential for carbon fixation in cyanobacteria and proteobacteria, and are responsible for almost half of global CO2 fixation. Image
Jun 4, 2020 • 11 tweets • 4 min read
New preprint from the Vecchiarelli lab!

"Cyanobacterial growth and morphology are influenced by carboxysome positioning and temperature"

Work from Rees Rillema @Rees7942 and Joshua MacCready

biorxiv.org/content/10.110… Like Plants, cyanobacteria use the enzyme RuBisCO to fix CO2 into organic carbon molecules. Unlike plants, cyanobacteria evolved an organelle called the carboxysome - a protein compartment that encapsulates and concentrates RuBisCO along with its CO2 substrate.