In article <12JUL199617473807 at watson.bms.com>, curtis at watson.bms.com (Michael S Curtis) wrote: #Does anyone know if glutathione-s-tranferase dimerizes giving a molwt of #approx 59,000? If anyone has any info please post. Yes, it does. But if you mean on gels, don't be confused: on SDS gel it always runs as a single band. - Dima