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Moderate cytoplasmic or membranous positivity was observed in a few cases of malignant carcinoid, cervical, liver, lung, skin, stomach, colorectal and pancreatic cancer. Other malignant cells were mainly negative.
GENE INFORMATION
Gene name
SLC19A3 (HGNC Symbol)
Synonyms
THTR2
Description
Solute carrier family 19 (thiamine transporter), member 3 (HGNC Symbol)
Entrez gene summary
This gene encodes a ubiquitously expressed transmembrane thiamine transporter that lacks folate transport activity. Mutations in this gene cause biotin-responsive basal ganglia disease (BBGD); a recessive disorder manifested in childhood that progresses to chronic encephalopathy, dystonia, quadriparesis, and death if untreated. Patients with BBGD have bilateral necrosis in the head of the caudate nucleus and in the putamen. Administration of high doses of biotin in the early progression of the disorder eliminates pathological symptoms while delayed treatment results in residual paraparesis, mild mental retardation, or dystonia. Administration of thiamine is ineffective in the treatment of this disorder. Experiments have failed to show that this protein can transport biotin. Mutations in this gene also cause a Wernicke's-like encephalopathy.[provided by RefSeq, Jan 2010]
