Protein-pigment mass ratio in phycobilisome

Value ~22.4 Unitless Range: Table - link Unitless
Organism Unspecified
Reference Jorg Overmann and Ferran Garcia-Pichel, The Phototrophic Way of Life, Prokaryotes (2006) 2:32–85 chapter 1.3, edited by Stanley Falkow, Eugene Rosenberg, Karl-Heinz Schleifer, Erko Stackebrandt DOI: 10.1007/0-387-30742-7_3 p.51 table 3
Primary Source See link
Comments P.51 left column 2nd paragraph: "The biosynthesis of proteins requires a major fraction of the energy expenditure of the bacterial cell (Gottschalk, 1986). In chlorosomes, the mass ratio of protein:bacteriochlorophyll is significantly lower than in other light-harvesting complexes (Table 3)." P.55 left column 4th paragraph: "In a careful study of Rhodobacter capsulatus and Rba. acidophilus grown with lactate as electron donor in a light chemostat, a value for the maintenance light energy requirement of mq=0.012 mol quanta/(g dry weight×h) was determined (Göbel, 1978). The maintenance energy requirements of green sulfur bacteria are significantly lower compared to their purple conterparts (van Gemerden and Mas, 1995). This may be explained by the fact that protein turnover is highly energy demanding and that the protein content of the green sulfur bacterial antenna is much lower than in purple sulfur bacteria (Table 3)." See note beneath table. Corresponds to ~12.3 kDa of protein per pigment molecule
Entered by Uri M
ID 104564