View previous topic | View next topic

RuBisCO

Page 1 of 1

nathanvanwyk
1324357.  Sat Jun 15, 2019 6:35 am Reply with quote

RuBisCO (or Ribulose-1,5-bisphosphate carboxylase/oxygenase in long) is arguably the most important protein in the world. RuBisCO is a plant protein and enzyme that incorporates atmospheric CO2 into sugars, and thus forms one of only a handful of bridges between the living and non-living world.
RuBisCO is also incredibly inefficient and slow. RuBisCo only fixes about 3 CO2 molecules per second (as opposed to carbonic anhydrase which can perform 1 000 000 reactions per second) and 1 in 4 of those reactions accidentally fixes oxygen.
This is why RuBisCO is also the the most abundant protein on earth (to compensate for it's inefficiencies), with an estimated 700 000 000 tonnes of the stuff. More than 90 % of that is to be found in the 2x10^14 m2 of leaves of terrestrial plants.

https://www.ncbi.nlm.nih.gov/books/NBK22380/
https://pdb101.rcsb.org/motm/11
https://www.pnas.org/content/116/10/4738

 

Page 1 of 1

All times are GMT - 5 Hours


Display posts from previous:   

Search Search Forums

Powered by phpBB © 2001, 2002 phpBB Group