DHDDS | |||||||||||||||||||||||||||||||||||||||||||||||||||
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Aliases | DHDDS , CIT, CPT, DS, HDS, RP59, Dehydrodolichyl diphosphate synthase, dehydrodolichyl diphosphate synthase subunit, DEDSM, hCIT | ||||||||||||||||||||||||||||||||||||||||||||||||||
External IDs | OMIM: 608172; MGI: 1914672; HomoloGene: 32615; GeneCards: DHDDS; OMA:DHDDS - orthologs | ||||||||||||||||||||||||||||||||||||||||||||||||||
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Wikidata | |||||||||||||||||||||||||||||||||||||||||||||||||||
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Dehydrodolichyl diphosphate synthase is an enzyme that in humans is encoded by the DHDDS gene. [5] [6]
Dehydrodolichyl diphosphate (dedol-PP) synthase catalyzes cis-prenyl chain elongation to produce the polyprenyl backbone of dolichol, a glycosyl carrier lipid required for the biosynthesis of several classes of glycoproteins. [6]
It has been suggested that missense mutations in the DHDDS gene are responsible for certain variants of retinitis pigmentosa. [7] Since it is involved in the early steps of dolichol synthesis, vital e.g. for correct N-glycosylation, a disease caused by mutations in DHDDS should be considered a congenital disorder of glycosylation (and named DHDDS-CDG according to the novel nomenclature of CDGs). [8] Many CDG subtypes present with retinitis pigmentosa as a major feature. [9]