Rare Diseases Symptoms Automatic Extraction

A novel mutation (p.Thr198Ser) in the 1A helix of keratin 5 causes the localized variant of epidermolysis bullosa simplex.

[epidermolysis bullosa simplex]

A novel missense mutation (p.Thr198Ser) in the 1A helix of keratin 5 (K5) has been identified in a four-generation family with a history of the localized variant of epidermolysis bullosa simplex (EBS-loc), a genetic skin fragility disorder caused by K5 or K14 mutations. Genomic DNA was isolated from blood samples of patients and their healthy relatives, and all exons of the genes encoding K5 and K14 (KRT5 and KRT14) were amplified by PCR and directly sequenced. The identified mutation was confirmed by mismatch allele-specific (MM-AS)-PCR and restriction enzyme digestion with RsaI. K5 p.Thr198Ser lies at the C-terminal end of the 1A helical domain and is considered to be outside of the main mutation hotspot region. This is the first reported mutation to affect position 30 of the 1A helix (1A:T30S) in any of the 54 known keratins.

Diseases presenting "blood samples" symptom

  • 22q11.2 deletion syndrome
  • acute rheumatic fever
  • adrenomyeloneuropathy
  • alpha-thalassemia
  • aniridia
  • aromatase deficiency
  • benign recurrent intrahepatic cholestasis
  • canavan disease
  • classical phenylketonuria
  • cohen syndrome
  • congenital adrenal hyperplasia
  • congenital toxoplasmosis
  • cushing syndrome
  • dystrophic epidermolysis bullosa
  • epidermolysis bullosa simplex
  • erdheim-chester disease
  • erythropoietic protoporphyria
  • esophageal adenocarcinoma
  • fabry disease
  • familial mediterranean fever
  • heparin-induced thrombocytopenia
  • hirschsprung disease
  • hodgkin lymphoma, classical
  • homocystinuria without methylmalonic aciduria
  • kallmann syndrome
  • oculocutaneous albinism
  • oligodontia
  • oral submucous fibrosis
  • papillon-lefèvre syndrome
  • phenylketonuria
  • primary effusion lymphoma
  • scrub typhus
  • sneddon syndrome
  • systemic capillary leak syndrome
  • triple a syndrome
  • typhoid
  • von hippel-lindau disease
  • waldenström macroglobulinemia
  • well-differentiated liposarcoma
  • wolf-hirschhorn syndrome
  • x-linked adrenoleukodystrophy

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