Abstract
A crystal structure for a member of the AraC prokaryotic transcriptional activator family, MarA, in complex with its cognate DNA-binding site is described. MarA consists of two similar subdomains, each containing a helix–turn–helix DNA-binding motif. The two recognition helices of the motifs are inserted into adjacent major groove segments on the same face of the DNA but are separated by only 27 Å thereby bending the DNA by ≈35°. Extensive interactions between the recognition helices and the DNA major groove provide the sequence specificity.
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Dates
Type | When |
---|---|
Created | 23 years, 1 month ago (July 26, 2002, 10:40 a.m.) |
Deposited | 3 years, 2 months ago (June 6, 2022, 9:32 p.m.) |
Indexed | 3 months, 2 weeks ago (May 14, 2025, 1:24 a.m.) |
Issued | 27 years ago (Sept. 1, 1998) |
Published | 27 years ago (Sept. 1, 1998) |
Published Online | 27 years ago (Sept. 1, 1998) |
Published Print | 27 years ago (Sept. 1, 1998) |
@article{Rhee_1998, title={A novel DNA-binding motif in MarA: The first structure for an AraC family transcriptional activator}, volume={95}, ISSN={1091-6490}, url={http://dx.doi.org/10.1073/pnas.95.18.10413}, DOI={10.1073/pnas.95.18.10413}, number={18}, journal={Proceedings of the National Academy of Sciences}, publisher={Proceedings of the National Academy of Sciences}, author={Rhee, Sangkee and Martin, Robert G. and Rosner, Judah L. and Davies, David R.}, year={1998}, month=sep, pages={10413–10418} }