2i13: Difference between revisions
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[[Image:2i13.gif|left|200px]] | [[Image:2i13.gif|left|200px]] | ||
'''Aart, a six finger zinc finger designed to recognize ANN triplets''' | {{Structure | ||
|PDB= 2i13 |SIZE=350|CAPTION= <scene name='initialview01'>2i13</scene>, resolution 1.960Å | |||
|SITE= | |||
|LIGAND= <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene> and <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene> | |||
|ACTIVITY= | |||
|GENE= | |||
}} | |||
'''Aart, a six finger zinc finger designed to recognize ANN triplets''' | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
2I13 is a [ | 2I13 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2I13 OCA]. | ||
==Reference== | ==Reference== | ||
Structure of Aart, a designed six-finger zinc finger peptide, bound to DNA., Segal DJ, Crotty JW, Bhakta MS, Barbas CF 3rd, Horton NC, J Mol Biol. 2006 Oct 20;363(2):405-21. Epub 2006 Aug 11. PMID:[http:// | Structure of Aart, a designed six-finger zinc finger peptide, bound to DNA., Segal DJ, Crotty JW, Bhakta MS, Barbas CF 3rd, Horton NC, J Mol Biol. 2006 Oct 20;363(2):405-21. Epub 2006 Aug 11. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/16963084 16963084] | ||
[[Category: Mus musculus]] | [[Category: Mus musculus]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
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[[Category: zinc finger]] | [[Category: zinc finger]] | ||
''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 17:24:09 2008'' | ||
Revision as of 18:24, 20 March 2008
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| Coordinates: | save as pdb, mmCIF, xml | ||||||
Aart, a six finger zinc finger designed to recognize ANN triplets
OverviewOverview
Cys2-His2 zinc fingers are one of the most common types of DNA-binding domains. Modifications to zinc-finger binding specificity have recently enabled custom DNA-binding proteins to be designed to a wide array of target sequences. We present here a 1.96 A structure of Aart, a designed six-zinc finger protein, bound to a consensus DNA target site. This is the first structure of a designed protein with six fingers, and was intended to provide insights into the unusual affinity and specificity characteristics of this protein. Most protein-DNA contacts were found to be consistent with expectations, while others were unanticipated or insufficient to explain specificity. Several were unexpectedly mediated by glycerol, water molecules or amino acid-base stacking interactions. These results challenge some conventional concepts of recognition, particularly the finding that triplets containing 5'A, C, or T are typically not specified by direct interaction with the amino acid in position 6 of the recognition helix.
About this StructureAbout this Structure
2I13 is a Single protein structure of sequence from Mus musculus. Full crystallographic information is available from OCA.
ReferenceReference
Structure of Aart, a designed six-finger zinc finger peptide, bound to DNA., Segal DJ, Crotty JW, Bhakta MS, Barbas CF 3rd, Horton NC, J Mol Biol. 2006 Oct 20;363(2):405-21. Epub 2006 Aug 11. PMID:16963084
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