dolichol


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dol·i·chol

(dol'i-kol),
Polyisoprenes in which the terminal member is saturated and oxidized to an alcohol, usually phosphorylated and often glycosylated; found in endoplasmic reticulum, but not in mitochondrial or plasma membranes; urinary levels are elevated in disorders exhibiting abnormal skin, rectal, or brain profiles in electron microscopy of biopsies; derived from four or more linked isoprene units.

dol·i·chol

(dol'i-kol)
Polyisoprenes in which the terminal member is saturated and oxidized to an alcohol, usually phosphorylated, and often glycosylated; found in endoplasmic reticulum, but not in mitochondrial or plasma membranes; urinary levels are elevated in disorders exhibiting abnormal skin, rectal, or brain profiles in electron microscopy of biopsies.
References in periodicals archive ?
Walter (1986) reported that dolichol kinase, a rate limiting enzyme for the supply with dolichyl monophosphate as glycosyl carrier lipid in P.
However, the UDP-N-acetylglucosamine, dolichol phosphate GlcNAc-1-P transferase, the molecular target of this compound, is equally sensitive in both human and fungal cells [64].
Ziqiang Guan, an associate research professor of biochemistry in the Duke University Medical School and a contributing author of the study, and his collaborators had previously sequenced the genome of this family and found that the children with RP carry two copies of a mutation at the dehydrodolichol diphosphate synthase (DHDDS) gene, which makes the enzyme that synthesizes organic compounds called dolichols.
Then we gradually learned the truth, that to inhibit cholesterol we must also inhibit Coenyzyme Q10 (CoQ10) and dolichols, key substances vital for health.
It metabolises to dolichol which participates in the glycosylation of proteins in membranes and in the formation of glycoproteins.
The isoprenoid metabolites (digoxin, dolichol, and ubiquinone), glycoconjugate metabolism, free radical metabolism, and the RBC membrane composition were studied.
Gamma-glutamyltransferase, aspartate and alanine aminotransferases and their ratio, mean cell volume and urinary dolichol in pregnant alcohol abusers.
Lipid peroxidation of microsomal and mitochondrial membranes extracted with n-pentane and reconstituted with ubiquinol, dolichol and cholesterol.
In mammalian cells, the limiting substrate for dolichol biosynthesis is geranyl-geraniol (GGOH) of mevalonate pathway.
Additionally, the authors noted excess inhibition of protein glycosylation during this process, pointing to impairment of dolichol synthesis and leading the authors to suspect that dolichols played a more significant role during embryonic development.
(1998) DPM2 regulates biosynthesis of dolichol phosphate-mannose in mammalian cells: correct subcellular localization and stabilization of DPM1, and binding of dolichol phosphate.
However, they also compromise the production of several other substances vital for health, including coenzyme Q10 critical for energy metabolism and heart and muscle health, and dolichol, a fatty molecule crucial in the assembly of cellular proteins.