Vitamin B 6 -Responsive and -Unresponsive Cystathioninuria: Two Variant Molecular Forms
- 19 December 1975
- journal article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 190 (4220) , 1209-1211
- https://doi.org/10.1126/science.1198108
Abstract
Cystathionase activity in a lymphoid cell line extracts from a vitamin B6-responsive patient with cystathioninuria was increased strikingly by pyridoxal phosphate. Immunodiffusion with antiserum to human hepatic cystathionase showed identity between this cystathionase protein and cystathionase from an extract of normal lymphoid cells. Neither an increase in cystathionase activity nor immunochemical identity was found using extract of cells from a B6-unresponsive patient.Keywords
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