Ad
related to: plastoquinone vs ubiquinone d
Search results
Results From The WOW.Com Content Network
Plastoquinone (PQ) is a terpenoid-quinone (meroterpenoid) molecule involved in the electron transport chain in the light-dependent reactions of photosynthesis. The most common form of plastoquinone, known as PQ-A or PQ-9, is a 2,3-dimethyl-1,4- benzoquinone molecule with a side chain of nine isoprenyl units.
Ubiquinone-10 is a naturally occurring 1,4-benzoquinone involved in respiration apparatus. Plastoquinone is a redox relay involved in photosynthesis. Pyrroloquinoline quinone is another biological redox cofactor. Ubiquinones, as their name implies, are ubiquitous in living creatures, being components of respiratory apparatus.
Ubiquinone (Q), in turn, binds the Q i site of complex III. Ubiquinol is divergently oxidized (gives up one electron each) to the Rieske iron-sulfur '(FeS) protein' and to the b L heme. This oxidation reaction produces a transient semiquinone before complete oxidation to ubiquinone, which then leaves the Q o site of complex III.
The electrons are transferred to plastoquinone and two protons, generating plastoquinol, which released into the membrane as a mobile electron carrier. This is the second core process in photosynthesis. The initial stages occur within picoseconds, with an efficiency of 100%. The seemingly impossible efficiency is due to the precise positioning ...
In the early 2000s, a group of researchers led by prof V. P. Skulachev in Moscow State University began the development of SkQ — the mitochondrial-targeted antioxidant, similar to MitoQ, but with the ubiquinone replaced with plastoquinone (more active analog of ubiquinone derived from plant chloroplasts). [9]
A deficiency occurs if a person doesn't get enough vitamin D from sunlight or food, or if their body can't synthesize or absorb vitamin D properly due to an underlying condition or medication.
Vanessa Rissetto, R.D., is the co-founder of the virtual nutrition care service Culina Health. What is Red Dye No. 3? Red Dye No. 3 is an artificial food coloring derived from petroleum, ...
Coenzyme Q 10 (CoQ 10 / ˌ k oʊ k j uː ˈ t ɛ n /), also known as ubiquinone, is a naturally occurring biochemical cofactor (coenzyme) and an antioxidant produced by the human body. [ 1 ] [ 2 ] [ 3 ] It can also be obtained from dietary sources, such as meat, fish, seed oils, vegetables, and dietary supplements .