一例重型斑駁病患者的KIT基因突變檢測
[Abstract]:[objective] to detect the mutation of the KIT and SLUG (SNAI2) coding sequence of the pathogenic gene in a small family with mottle disease. [methods] KIT and SLUG gene coding region and exon-intron junction region were amplified by PCR, and the intron-intron junction region of KIT and SLUG gene was amplified by PCR. The PCR products were sequenced directly. The new mutations were sequenced in 50 normal controls to exclude polymorphism. [results] No abnormality was found in SLUG gene detection in proband, and point mutation c.860TA (p.V287E), which had not been reported in an international database, was detected by KIT gene. The mutation was not detected by the patient's parents. The mutation is located in the extracellular ligand-binding region of the protein encoded by the KIT gene, and the mutation of valine at position 287 is glutamic acid, which may lead to the rejection of glutamate at position 249 and destroy the stability of 尾 D and 尾 D / 尾 E in D3 domain. [conclusion] Neonatal mutation of KIT gene may be the cause of the pathogenesis of this severe mottled disease. [conclusion] the new mutation of KIT gene may be the cause of the development of SCF (stem cell factor) binding function.
【作者單位】: 廣東省醫(yī)學(xué)科學(xué)院//廣東省人民醫(yī)院皮膚科;上海市皮膚病醫(yī)院;
【基金】:廣東省自然科學(xué)基金(S2013010015872)
【分類號】:R758.5
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