Quantification of Diphtheria Toxin–Mediated ADP-Ribosylation in a Solid-Phase Assay
Author(s) -
Christopher Bachran,
Mark Sutherland,
Diana Bachran,
Hendrik Fuchs
Publication year - 2007
Publication title -
clinical chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.705
H-Index - 218
eISSN - 1530-8561
pISSN - 0009-9147
DOI - 10.1373/clinchem.2007.085365
Subject(s) - adp ribosylation , biotinylation , diphtheria toxin , pertussis toxin , corynebacterium diphtheriae , cholera toxin , streptavidin , microbiology and biotechnology , chemistry , toxin , fusion protein , biochemistry , enzyme , diphtheria , recombinant dna , biology , biotin , nad+ kinase , g protein , virology , receptor , vaccination , gene
Because of reduced vaccination programs, the number of diphtheria infections has increased in the last decade. Diphtheria toxin (DT) is expressed by Corynebacterium diphtheriae and is responsible for the lethality of diphtheria. DT inhibits cellular protein synthesis by ADP-ribosylation of the eukaryotic elongation factor 2 (eEF2). No in vitro system for the quantification of DT enzymatic activity exists. We developed a solid-phase assay for the specific detection of ADP-ribosylation by DT.
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