SORD

sorbitol dehydrogenase

Gene Function

Polyol dehydrogenase that catalyzes the reversible NAD(+)-dependent oxidation of various sugar alcohols. Is mostly active with D-sorbitol (D-glucitol), L-threitol, xylitol and ribitol as substrates, leading to the C2-oxidized products D-fructose, L-erythrulose, D-xylulose, and D-ribulose, respectively. Is a key enzyme in the polyol pathway that interconverts glucose and fructose via sorbitol, which constitutes an important alternate route for glucose metabolism. The polyol pathway is believed to be involved in the etiology of diabetic complications, such as diabetic neuropathy and retinopathy, induced by hyperglycemia. May play a role in sperm motility by using sorbitol as an alternative energy source for sperm motility. May have a more general function in the metabolism of secondary alcohols since it also catalyzes the stereospecific oxidation of (2R,3R)-2,3-butanediol. To a lesser extent, can also oxidize L-arabinitol, galactitol and D-mannitol and glycerol in vitro. Oxidizes neither ethanol nor other primary alcohols. Cannot use NADP(+) as the electron acceptor Source: UniProt

Relationship to CMT

Unclassified AR
1 subtype
15q21.1
First described 2020

Subtype Inheritance Class OMIM Sentinel Publication
SubtypeCMT-SORD Inheritanceautosomal recessive ClassUnclassified Subtypes OMIM618912 Sentinel Publication

2020 · 10.1038/s41588-020-0615-4

Stored Identifiers

HGNC Aliases: SDH, XDH
hgnc_idHGNC:11184
ensembl_gene_idENSG00000140263
coords_grch38chr15:45023116-45077185
coords_grch37chr15:45315302-45369383
entrez_id6652
omim_gene182500
uniprot_idsQ00796
refseq_accessionNM_003104
mane_refseqNM_003104.6
mane_ensemblENST00000267814.14

ClinVar Variants

Pathogenic and likely pathogenic variants in SORD, as classified in ClinVar, are read live from NCBI. Only aggregate germline records are shown. Uncertain and conflicting classifications are not. Experts in CMT makes no claim to the accuracy of ClinVar data. This index is provided for informational purposes only.

Review stars are ClinVar’s measure of how well a classification is supported: four for a practice guideline, three for an expert panel review, two for agreement among multiple submitters, one for a single submitter with criteria provided, and none where no criteria were provided.

Reported in CMT
Reported in Other Diseases

Reported in a disease other than CMT. Listed apart rather than counted as CMT variants.

Variants w/o a Recorded Disease

Pathogenic or likely pathogenic in ClinVar, submitted without a disease recorded.

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