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- From: lpcasson@phoenix.Princeton.EDU (Lawrence P. Casson)
- Newsgroups: bionet.general
- Subject: Nucleotide analogs and PCR mutagenesis
- Message-ID: <1993Jan26.203727.24346@Princeton.EDU>
- Date: 26 Jan 93 20:37:27 GMT
- Sender: news@Princeton.EDU (USENET News System)
- Organization: Princeton University
- Lines: 27
- Originator: news@nimaster
- Nntp-Posting-Host: phoenix.princeton.edu
-
- I am investigating various mutagenesis methods with the goal of
- randomly introducing multiple changes into a cloned gene.
- In particular, I am interested in the PCR (am I allowed to say PCR?)
- based technique described by Leung, D.W., et al. (Technique 1:11-15)
- and Cadwell, R.W., and Joyce, G.F. (PCR Methods and Applications 2:28-33).
-
- I am interested in the use of nucleotide analogs in combination with
- this technique. For example, DNA sequencing is often done with dITP
- or 7-deaza-dGTP because the weaker base pairing interactions eliminate
- certain gel artifacts. Since the PCR mutagenesis technique reduces
- the fidelity of the Taq polymerase, these nucleotides might be
- incorporated at a high rate. Perhaps this could be extended to other
- nucleotide analogs. The major benefit would be a larger number of
- mutations in fewer PCR cycles.
-
- The ideal "universal" nucleotide analog will pair with any other
- nucleotide and be randomly incorporated and not cause a large number
- of frame shift mutations. However, I am willing to settle for
- second best.
-
- Does anyone know of any work regarding nucleotide analogs and base
- pairing? Has anyone used analogs to investigate kinetics of various
- DNA or RNA polymerases?
-
-
- Larry Casson
- lpcasson@phoenix.princeton.edu
-