This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.

Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.


1fzs

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
Line 1: Line 1:
-
[[Image:1fzs.gif|left|200px]]
+
{{Seed}}
 +
[[Image:1fzs.png|left|200px]]
<!--
<!--
Line 9: Line 10:
{{STRUCTURE_1fzs| PDB=1fzs | SCENE= }}
{{STRUCTURE_1fzs| PDB=1fzs | SCENE= }}
-
'''DNA WITH PYRENE PAIRED AT ABASIC SITE'''
+
===DNA WITH PYRENE PAIRED AT ABASIC SITE===
-
==Overview==
+
<!--
-
DNA polymerases specifically insert the hydrophobic pyrene deoxynucleotide (P) opposite tetrahydrofuran (F), an stable abasic site analog, and DNA duplexes containing this non-hydrogen-bonded pair possess a high degree of thermodynamic stability. These observations support the hypothesis that steric complementarity and stacking interactions may be sufficient for maintaining stability of DNA structure and specificity of DNA replication, even in the absence of hydrogen bonds across the base pair. Here we report the NMR characterization and structure determination of two DNA molecules containing pyrene residues. The first is a 13mer duplex with a pyrene.tetrahydrofuran pair (P.F pair) at the ninth position and the second mimics a replication intermediate right after incorporation of a pyrene nucleoside opposite an abasic site. Our data indicate that both molecules adopt right-handed helical conformations with Watson- Crick alignments for all canonical base pairs. The pyrene ring stays inside the helix close to its baseless partner in both molecules. The single-stranded region of the replication intermediate folds back over the opposing strand, sheltering the hydrophobic pyrene moiety from water exposure. The results support the idea that the stability and replication of a P.F pair is due to its ability to mimic Watson-Crick structure.
+
The line below this paragraph, {{ABSTRACT_PUBMED_12490724}}, adds the Publication Abstract to the page
 +
(as it appears on PubMed at http://www.pubmed.gov), where 12490724 is the PubMed ID number.
 +
-->
 +
{{ABSTRACT_PUBMED_12490724}}
==About this Structure==
==About this Structure==
-
Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1FZS OCA].
+
Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1FZS OCA].
==Reference==
==Reference==
Line 27: Line 31:
[[Category: Non-polar dna pair]]
[[Category: Non-polar dna pair]]
[[Category: Pyrene]]
[[Category: Pyrene]]
-
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 16:56:58 2008''
+
 
 +
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 1 04:11:08 2008''

Revision as of 01:11, 1 July 2008

Image:1fzs.png

Template:STRUCTURE 1fzs

DNA WITH PYRENE PAIRED AT ABASIC SITE

Template:ABSTRACT PUBMED 12490724

About this Structure

Full experimental information is available from OCA.

Reference

Integrity of duplex structures without hydrogen bonding: DNA with pyrene paired at abasic sites., Smirnov S, Matray TJ, Kool ET, de los Santos C, Nucleic Acids Res. 2002 Dec 15;30(24):5561-9. PMID:12490724

Page seeded by OCA on Tue Jul 1 04:11:08 2008

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1fzs"
Personal tools