Path: utzoo!utgpu!watmath!iuvax!bionet!leicester.ac.uk!RAY From: RAY@leicester.ac.uk Newsgroups: bionet.molbio.methds-reagnts Subject: (none) Message-ID: <8904111036.AA21637@net.bio.net> Date: 11 Apr 89 10:25:53 GMT Sender: daemon@NET.BIO.NET Lines: 13 Can anybody help us with idesas concerning the cloning of DNA fragments produced by PCR amplification? We are really struggling to produce clones in plasmid vectors and suspect that the problem may slight exonuclease activity in the Taq polymerase. Has anybody else experienced this problem - three independent groups here in Leicester are having the same problem. We are going to try using Perkin-Elemer/Cetus AmpliTaq which should be free of thermostable exonucleases but we are concernred that we may be barking up the wrong tree. Any help gratefully received. Raymond Dalgleish, Department of Genetics, University of Leicester, Leicester LE1 7RH, U.K.