Abstract
RecA protein can be used to introduce a psoralen-monoadducted DNA oligonucleotide into a duplex target site-specifically. Irradiation of the three-stranded DNA complex with long wavelength ultraviolet light results in formation of a site-specific crosslink between the inserted oligomer and its complement. Crosslinked complexes have been formed between pUC19 plasmid and modified oligomers ranging from 30 to 107 nucleotides in length. The efficiency of this two-step process depends upon several factors, including the nucleotide cofactor for RecA, the length of the oligomeric substrate, and the position of the psoralen adduct relative to the 5’-end of the oligomer. Absolute homology is not required.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
Similar content being viewed by others
REFERENCES
Cimino GD, Gamper HB, Isaacs ST, and Hearst JE (1985). ‘Psoralens as photoactive probes of nucleic acid structure and function: organic chemistry, photochemistry, and biochemistry’ Ann Rev Biochem 54: 1151–1193.
Cox MM and Lehman IR (1987).’Enzymes of general recombination’ Ann Rev Biochem 56:229–262.
Gamper HB, Piette J, and Hearst JE (1984). ‘Efficient formation of a crosslinkable HMT monoadduct at the Kpnl recognition site’ Photochem Photobiol 40: 29–34.
Gonda DK and Radding CM (1983). ‘By Searching Processively RecA Protein Pairs Molecules That Share a Limited Stretch of Homology’ Cell 34: 647–654.
Honigberg SM, Gonda DK, Flory J, and Radding CM (1985). ‘The Pairing Activity of Stable Nucleoprotein Filaments Made from recA Protein, Single-stranded DNA, and Adenosine 5’-(γ-Thio)triphosphate’ J Biol Chem 260: 11845–11851.
Leahy MC and Radding CM (1986). ‘Topography of the Interaction of recA Protein with Single-stranded Deoxyoligonucleotides’ J Biol Chem 261: 6954–6960.
Muniyappa K, Shaner SL, Tsang SS, and Radding CM (1984). ‘Mechanism of the concerted action of recA protein and helix-destabilizing proteins in homologous recombination’ Proc Natl Acad Sci USA 81: 2757–2761.
Radding CM (1982). ‘Homologous pairing and strand exchange in genetic recombination’ Ann Rev Genet 16: 405–437.
Tsang SS, Muniyappa K, Azhderian E, Gonda DK, Radding CM, Flory J, and Chase JW (1985). ‘Intermediates in Homologous Pairing Promoted by recA protein’ J Mol Biol 185: 295–309.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1989 Kluwer Academic Publishers
About this chapter
Cite this chapter
Cheng, S., Gamper, H.B., Hearst, J.E. (1989). RecA-Directed Hybridization of Psoralen-Monoadducted DNA Oligonucleotides to Duplex Targets. In: Nielsen, P.E. (eds) Photochemical Probes in Biochemistry. NATO ASI Series, vol 272. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-0925-0_12
Download citation
DOI: https://doi.org/10.1007/978-94-009-0925-0_12
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-6905-2
Online ISBN: 978-94-009-0925-0
eBook Packages: Springer Book Archive