1cvx
From Proteopedia
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| - | [[Image:1cvx.gif|left|200px]] | + | [[Image:1cvx.gif|left|200px]] |
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| - | '''CRYSTAL STRUCTURE OF POLYAMIDE DIMER (IMPYHPPYBETADP)2 BOUND TO B-DNA DECAMER CCAGATCTGG''' | + | {{Structure |
| + | |PDB= 1cvx |SIZE=350|CAPTION= <scene name='initialview01'>1cvx</scene>, resolution 2.27Å | ||
| + | |SITE= | ||
| + | |LIGAND= <scene name='pdbligand=HP2:HYDROXYPYRROLE-IMIDAZOLE-PYRROLE POLYAMIDE'>HP2</scene> | ||
| + | |ACTIVITY= | ||
| + | |GENE= | ||
| + | }} | ||
| + | |||
| + | '''CRYSTAL STRUCTURE OF POLYAMIDE DIMER (IMPYHPPYBETADP)2 BOUND TO B-DNA DECAMER CCAGATCTGG''' | ||
| + | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1CVX is a [ | + | 1CVX is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/ ]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1CVX OCA]. |
==Reference== | ==Reference== | ||
| - | Structural effects of DNA sequence on T.A recognition by hydroxypyrrole/pyrrole pairs in the minor groove., Kielkopf CL, Bremer RE, White S, Szewczyk JW, Turner JM, Baird EE, Dervan PB, Rees DC, J Mol Biol. 2000 Jan 21;295(3):557-67. PMID:[http:// | + | Structural effects of DNA sequence on T.A recognition by hydroxypyrrole/pyrrole pairs in the minor groove., Kielkopf CL, Bremer RE, White S, Szewczyk JW, Turner JM, Baird EE, Dervan PB, Rees DC, J Mol Biol. 2000 Jan 21;295(3):557-67. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/10623546 10623546] |
[[Category: Protein complex]] | [[Category: Protein complex]] | ||
[[Category: Baird, E E.]] | [[Category: Baird, E E.]] | ||
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[[Category: ta recognition]] | [[Category: ta recognition]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 10:29:33 2008'' |
Revision as of 08:29, 20 March 2008
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| , resolution 2.27Å | |||||||
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| Coordinates: | save as pdb, mmCIF, xml | ||||||
CRYSTAL STRUCTURE OF POLYAMIDE DIMER (IMPYHPPYBETADP)2 BOUND TO B-DNA DECAMER CCAGATCTGG
Overview
Synthetic polyamides composed of three types of aromatic amino acids, N-methylimidazole (Im), N-methylpyrrole (Py) and N-methyl-3-hydroxypyrrole (Hp) bind specific DNA sequences as antiparallel dimers in the minor groove. The side-by-side pairings of aromatic rings in the dimer afford a general recognition code that allows all four base-pairs to be distinguished. To examine the structural consequences of changing the DNA sequence context on T.A recognition by Hp/Py pairs in the minor groove, crystal structures of polyamide dimers (ImPyHpPy)(2) and the pyrrole counterpart (ImPyPyPy)(2) bound to the six base-pair target site 5'-AGATCT-3' in a ten base-pair oligonucleotide have been determined to a resolution of 2.27 and 2.15 A, respectively. The structures demonstrate that the principles of Hp/Py recognition of T.A are consistent between different sequence contexts. However, a general structural explanation for the non-additive reduction in binding affinity due to introduction of the hydroxyl group is less clear. Comparison with other polyamide-DNA cocrystal structures reveals structural themes and differences that may relate to sequence preference.
About this Structure
1CVX is a Protein complex structure of sequences from [1]. Full crystallographic information is available from OCA.
Reference
Structural effects of DNA sequence on T.A recognition by hydroxypyrrole/pyrrole pairs in the minor groove., Kielkopf CL, Bremer RE, White S, Szewczyk JW, Turner JM, Baird EE, Dervan PB, Rees DC, J Mol Biol. 2000 Jan 21;295(3):557-67. PMID:10623546
Page seeded by OCA on Thu Mar 20 10:29:33 2008
