Abstract
Random mutagenesis is one of the most effective methodologies to generate variant libraries for directed protein evolution. Indeed, this approach requires no structural or mechanistic information and can uncover unexpected beneficial mutations. Here, we describe a new random mutagenesis method based on the use of human error-prone DNA polymerases (pol beta, pol eta and pol iota). This approach allows the random introduction of mutations through a single replication step followed by a selective PCR amplification of the replicated mutated sequences. The libraries generated using this methodology display different mutation rates and complementary mutational spectra. By taking advantage of the mutation bias of naturally highly error-prone DNA polymerases, MutaGen™ thus appears as a very useful tool for gene and protein randomization.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsReferences
Rothwell PJ, Waksman G (2005) Structure and mechanism of DNA polymerases. Adv Protein Chem 71:401–440
Kunkel TA (2004) DNA replication fidelity. J Biol Chem 279:16895–16898
Matsumoto Y, Kim K (1995) Excision of deoxyribose phosphate residues by DNA polymerase beta during DNA repair. Science 269:699–702
Kunkel TA (1985) The mutational specificity of DNA polymerase-beta during in vitro DNA synthesis. Production of frameshift, base substitution, and deletion mutations. J Biol Chem 260:5787–5796
Osheroff WP, Jung HK, Beard WA, Wilson SH, Kunkel TA (1999) The fidelity of DNA polymerase beta during distributive and processive DNA synthesis. J Biol Chem 274:3642–3650
Yang W (2005) Portraits of a Y-family DNA polymerase. FEBS Lett 579:868–872
Kunkel TA, Pavlov YI, Bebenek K (2003) Functions of human DNA polymerases eta, kappa and iota suggested by their properties, including fidelity with undamaged DNA templates. DNA Repair (Amst) 2:135–149
Bouayadi K, Kharrat H, Louat T, Servant L, Cazaux C, Hoffmann JS (2002) Use of mutagenic polymerase for producing random mutations. Patent WO/2002/0238756
Mondon P, Bouayadi K, Kharrat H (2007) Highly diversified antibody libraries. Patent WO/2007/137616
Mondon P, Souyris N, Douchy L, Crozet F, Bouayadi K, Kharrat H (2007) Method for generation of human hyperdiversified antibody fragment library. Biotechnol J 2:76–82
Emond S, Mondon P, Pizzut-Serin S, Douchy L, Crozet F, Bouayadi K, Kharrat H, Potocki-Veronese G, Monsan P, Remaud-Simeon M (2008) A novel random mutagenesis approach using human mutagenic DNA polymerases to generate enzyme variant libraries. Protein Eng Des Sel 21:267–274
Emond S, Andre I, Jaziri K, Potocki-Veronese G, Mondon P, Bouayadi K, Kharrat H, Monsan P, Remaud-Simeon M (2008) Combinatorial engineering to enhance thermostability of amylosucrase. Protein Sci 17:967–976
Emond S, Potocki-Veronese G, Mondon P, Bouayadi K, Kharrat H, Monsan P, Remaud-Simeon M (2007) Optimized and automated protocols for high-throughput screening of amylosucrase libraries. J Biomol Screen 12:715–723
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2010 Springer Science+Buesiness Media, LLC
About this protocol
Cite this protocol
Mondon, P., Grand, D., Souyris, N., Emond, S., Bouayadi, K., Kharrat, H. (2010). Mutagen™: A Random Mutagenesis Method Providing a Complementary Diversity Generated by Human Error-Prone DNA Polymerases. In: Braman, J. (eds) In Vitro Mutagenesis Protocols. Methods in Molecular Biology, vol 634. Humana Press, Totowa, NJ. https://doi.org/10.1007/978-1-60761-652-8_26
Download citation
DOI: https://doi.org/10.1007/978-1-60761-652-8_26
Published:
Publisher Name: Humana Press, Totowa, NJ
Print ISBN: 978-1-60761-651-1
Online ISBN: 978-1-60761-652-8
eBook Packages: Springer Protocols