Difference between revisions of "Glycerophosphate"
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Alternatives: | Alternatives: | ||
* enantiopure lithium salt: Sigma: 94124 | * enantiopure lithium salt: Sigma: 94124 | ||
* enatiopure bis(cyclohexylammonium) salt: Sigma: G7886 | |||
If a racemic mixture (like Sigma G-2138) is replaced by the biologically active enantiomer the amount of substance (measured in moles) usually has to be halved. However, also consider that stated purities may also be different, requiring further adjustments. | |||
Revision as of 13:39, 22 January 2014
- high-resolution terminology - matching measurements at high-resolution
Glycerophosphate
Description
Glycerophosphate (synonym: α-glycerophosphate; glycerol-3-phosphate; C3H9O6P) is an organophosphate and it is a component of glycerophospholipids.
Abbreviation: Gp
MitoPedia topics: Substrate and metabolite
Glycerophosphate feeds electrons directly to ubiquinone and glycerophosphate dehydrogenase oxidizes glycerophosphate to dihydroxyacetone phosphate. See also glycerol phosphate shuttle.
Nomenclature issues
Due to an ambiguity in the D, L nomenclature based on the Fisher projection the biologically active enantiomer can be labeled either D-glycerol 1-phosphate or L-glycerol 3-phosphate. Alternatives aresn-glycerol 3-phosphate or DL-alpha-glycerophosphate. Following the Cahn–Ingold–Prelog priority rules the biologically active substance is always the (R) enantiomer, independent of whether the substance is called glycerol 1-phosphate or glycerol 3-phosphate.
Availability
Sigma does not sell DL-alpha-glycerophosphate disodium salt hexahydrate (FW = 324.1; Sigma G-2138) any more (personal communication with Dr. Zdenek Drahota, Dept. of Bioenergetics, Institute of Physiology, Academy of Sciences of the Czech Rep.)! [In Dr. Drahota's lab a 1 M stock solution is used and the final concentration in the O2k-chamber is 10 mM.]
Search for an adequate replacement is underway.
Alternatives:
- enantiopure lithium salt: Sigma: 94124
- enatiopure bis(cyclohexylammonium) salt: Sigma: G7886
If a racemic mixture (like Sigma G-2138) is replaced by the biologically active enantiomer the amount of substance (measured in moles) usually has to be halved. However, also consider that stated purities may also be different, requiring further adjustments.
