Fraction of thylakoid membrane surface occupied by proteins

Range ≤80 %
Organism Spinach Spinacia oleracea
Reference Kihara S, Hartzler DA, Savikhin S. Oxygen concentration inside a functioning photosynthetic cell. Biophys J. 2014 May 6 106(9):1882-9. doi: 10.1016/j.bpj.2014.03.031 p.1883 right column 5th paragraphPubMed ID24806920
Primary Source [39] Kirchhoff, H., Mukherjee, U., and Galla, H.J. Molecular architecture of the thylakoid membrane: lipid diffusion space for plastoquinone. Biochemistry. 2002 41: 4872–4882PubMed ID11939782
Method Primary source abstract: "[Investigators] have determined the stoichiometric composition of membrane components (lipids and proteins) in spinach thylakoids and have derived the molecular area occupied by these components."
Comments P.1883 right column 5th paragraph: "However, proteins embedded within the membrane are known to be impermeable to oxygen molecules (refs 37, 38), and the thylakoid is known to be protein-rich, with proteins occupying up to 80% of the membrane surface (primary source). This will reduce the permeability of the thylakoid by a factor of 5, and therefore [investigators] will model the thylakoid membrane using the permeability Pt = 8 cm/s."
Entered by Uri M
ID 114986