Skip Navigation

This Article
Right arrow Full Text Freely available
Right arrow Print PDF (234K) Freely available
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrow Search for citing articles in:
ISI Web of Science (18)
Right arrowRequest Permissions
Right arrow Commercial Re-use Guidelines
for Open Access NAR Content
Google Scholar
Right arrow Articles by Guerri, A.
Right arrow Articles by Neidle, S.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Guerri, A.
Right arrow Articles by Neidle, S.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

Nucleic Acids Research, Vol 26, Issue 12 2873-2878, Copyright © 1998 by Oxford University Press

ARTICLES

Visualisation of extensive water ribbons and networks in a DNA minor- groove drug complex

A Guerri, IJ Simpson and S Neidle
The CRC Biomolecular Structure Unit, The Institute of Cancer Research, Sutton, Surrey SM2 5NG, UK.

The crystal structure is reported of a complex between an ethyl derivative of the minor-groove drug furamidine and the dodecanucleotide duplex d(CGCGAATTCGCG)2, which has been refined to 1.85 A resolution and an R factor of 16.6% for data collected at -173 degreesC. An exceptionally large number (220) of water molecules have been located. The majority of these occur in the first coordination shell of solvation. There are extensive networks of connected waters, both in the major and minor grooves. In particular, there are 21 water molecules associated with the minor-groove drug, via hydrogen bonds from the four charged nitrogen atoms. One cluster of four waters is situated in the groove itself; the majority are on the outer edge of the groove, and serve to bridge between the outward-directed drug nitrogen atoms and backbone phosphate oxygen atoms. These bridges are both intra- and inter-strand, with the net effect that the outer edge of the drug molecule is covered by ribbons of water molecules.
Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?




Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.