Succinyl-CoA:3-ketoacid coenzyme A transferase (SCOT): Development of an antibody to human SCOT and diagnostic use in hereditary SCOT deficiency

Autor: Toshiyuki Fukao, Ronald J.A. Wanders, Naomi Kondo, Sacha Kassovska-Bratinova, Haruo Shintaku, Ken Hirayama, Xiang-Qian Song, Tadao Orii, Grant A. Mitchell, Magdalena Ugarte, Perry Churchill, Hiroh Watanabe
Přispěvatelé: Faculteit der Geneeskunde
Rok vydání: 1997
Předmět:
Zdroj: Biochimica et Biophysica Acta, 1360, 151-156
ISSN: 0925-4439
0006-3002
DOI: 10.1016/s0925-4439(96)00074-9
Popis: Succinyl-CoA:3-ketoacid CoA transferase (SCOT) is a key enzyme for ketone body utilization. Hereditary SCOT deficiency in humans (McKusick catalogue number 245050) is characterized by intermittent ketoacidotic attacks and permanent hyperketonemia. Since previously-available antibody to rat SCOT did not crossreact with human SCOT, we developed an antibody against recombinant human SCOT expressed in a bacterial system. The recombinant SCOT was insoluble except under denaturing conditions. Antibody raised to this polypeptide recognized denatured SCOT and proved useful for immunoblot analysis. On immunoblots, SCOT was easily detectable in control fibroblasts and lymphocytes but was detected neither in fibroblast extracts from four SCOT-deficient patients, nor in lymphocytes from two SCOT-deficient patients. These data indicate that immunoblot analysis is useful for diagnosis of SCOT deficiency in combination with enzyme assay.
Databáze: OpenAIRE