1kh0

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{{STRUCTURE_1kh0| PDB=1kh0 | SCENE= }}
{{STRUCTURE_1kh0| PDB=1kh0 | SCENE= }}
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'''Accurate Computer Base Design of a New Backbone Conformation in the Second Turn of Protein L'''
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===Accurate Computer Base Design of a New Backbone Conformation in the Second Turn of Protein L===
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==Overview==
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The rational design of loops and turns is a key step towards creating proteins with new functions. We used a computational design procedure to create new backbone conformations in the second turn of protein L. The Protein Data Bank was searched for alternative turn conformations, and sequences optimal for these turns in the context of protein L were identified using a Monte Carlo search procedure and an energy function that favors close packing. Two variants containing 12 and 14 mutations were found to be as stable as wild-type protein L. The crystal structure of one of the variants has been solved at a resolution of 1.9 A, and the backbone conformation in the second turn is remarkably close to that of the in silico model (1.1 A RMSD) while it differs significantly from that of wild-type protein L (the turn residues are displaced by an average of 7.2 A). The folding rates of the redesigned proteins are greater than that of the wild-type protein and in contrast to wild-type protein L the second beta-turn appears to be formed at the rate limiting step in folding.
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The line below this paragraph, {{ABSTRACT_PUBMED_11786026}}, adds the Publication Abstract to the page
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(as it appears on PubMed at http://www.pubmed.gov), where 11786026 is the PubMed ID number.
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{{ABSTRACT_PUBMED_11786026}}
==About this Structure==
==About this Structure==
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[[Category: Protein l b1 domain]]
[[Category: Protein l b1 domain]]
[[Category: Type 1' beta turn]]
[[Category: Type 1' beta turn]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 22:44:08 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Jul 2 10:19:53 2008''

Revision as of 07:19, 2 July 2008

Image:1kh0.png

Template:STRUCTURE 1kh0

Accurate Computer Base Design of a New Backbone Conformation in the Second Turn of Protein L

Template:ABSTRACT PUBMED 11786026

About this Structure

1KH0 is a Single protein structure of sequence from Finegoldia magna. Full crystallographic information is available from OCA.

Reference

Accurate computer-based design of a new backbone conformation in the second turn of protein L., Kuhlman B, O'Neill JW, Kim DE, Zhang KY, Baker D, J Mol Biol. 2002 Jan 18;315(3):471-7. PMID:11786026

Page seeded by OCA on Wed Jul 2 10:19:53 2008

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