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1zaa

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[[Image:1zaa.jpg|left|200px]]
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[[Image:1zaa.png|left|200px]]
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==Overview==
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{{ABSTRACT_2028256}}
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The zinc finger DNA-binding motif occurs in many proteins that regulate eukaryotic gene expression. The crystal structure of a complex containing the three zinc fingers from Zif268 (a mouse immediate early protein) and a consensus DNA-binding site has been determined at 2.1 angstroms resolution and refined to a crystallographic R factor of 18.2 percent. In this complex, the zinc fingers bind in the major groove of B-DNA and wrap part way around the double helix. Each finger has a similar relation to the DNA and makes its primary contacts in a three-base pair subsite. Residues from the amino-terminal portion of an alpha helix contact the bases, and most of the contracts are made with the guanine-rich strand of the DNA. This structure provides a framework for understanding how zinc fingers recognize DNA and suggests that this motif may provide a useful basis for the design of novel DNA-binding proteins.
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==About this Structure==
==About this Structure==
1ZAA is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. The following page contains interesting information on the relation of 1ZAA with [[http://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/pdb87_1.html Zinc Fingers]]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ZAA OCA].
1ZAA is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. The following page contains interesting information on the relation of 1ZAA with [[http://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/pdb87_1.html Zinc Fingers]]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ZAA OCA].
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==Reference==
 
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Zinc finger-DNA recognition: crystal structure of a Zif268-DNA complex at 2.1 A., Pavletich NP, Pabo CO, Science. 1991 May 10;252(5007):809-17. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/2028256 2028256]
 
[[Category: Mus musculus]]
[[Category: Mus musculus]]
[[Category: Single protein]]
[[Category: Single protein]]
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[[Category: Double helix]]
[[Category: Double helix]]
[[Category: Protein-dna complex]]
[[Category: Protein-dna complex]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 17:22:51 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Jun 26 18:10:05 2008''

Revision as of 15:10, 26 June 2008

Image:1zaa.png

Template:STRUCTURE 1zaa

ZINC FINGER-DNA RECOGNITION: CRYSTAL STRUCTURE OF A ZIF268-DNA COMPLEX AT 2.1 ANGSTROMS


Template:ABSTRACT 2028256

About this Structure

1ZAA is a Single protein structure of sequence from Mus musculus. The following page contains interesting information on the relation of 1ZAA with [Zinc Fingers]. Full crystallographic information is available from OCA.

Page seeded by OCA on Thu Jun 26 18:10:05 2008

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