Fraction of soluble protein in rice and wheat leaves that is comprised of RuBisCO

Range ≤50 %
Organism C3 plants
Reference Robert H. Wilson, Spencer M. Whitney, Improving CO2 Fixation by Enhancing Rubisco Performance, 15 February 2017, Directed Enzyme Evolution: Advances and Applications, pp 101-126 p.102 top paragraph
Primary Source [9] Carmo-Silva E, Scales JC, Madgwick PJ, Parry MAJ (2015) Optimizing Rubisco and its regulation for greater resource use efficiency. Plant Cell Environ 38(9):1817–1832 DOI: 10.1111/pce.12425 [68] Sharwood RE, Sonawane BV, Ghannoum O, Whitney SM (2016) Improved analysis of C4 and C3 photosynthesis via refined in vitro assays of their carbon fixation biochemistry. J Exp Bot 67(10):3137–3148 doi: 10.1093/jxb/erw154PubMed ID25123951, 27122573
Comments P.102 top paragraph: "In plants and algae the carboxylation reaction of Rubisco occurs at a slow pace (~1–5 cycles per second) resulting in its catalytic properties often limiting the rate of photosynthesis and growth in these organisms [primary source 9, ref 45]. To compensate for this shortcoming, many photosynthetic organisms require high amounts of Rubisco to meet their metabolic needs. For example, Rubisco can comprise up to 50% of the soluble protein in rice and wheat leaves [primary sources]. This high investment in Rubisco is therefore critical to supporting primary productivity in the global food chain which results in it being the most abundant enzyme on Earth [ref 16]."
Entered by Uri M
ID 113685