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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1999-1-28
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pubmed:abstractText |
The fibronectin type III domain (FN3) is a small autonomous folding unit which occurs in many animal proteins involving in ligand binding. The beta-sandwich structure of FN3 closely resembles that of immunoglobulin domains. We have prepared a phage display library of FN3 in which residues in two surface loops were randomized. We have selected mutant FN3s which bind to a test ligand, ubiquitin, with significant affinities, while the wild-type FN3 shows no measurable affinity. A dominant clone was expressed as a soluble protein and its properties were investigated in detail. Heteronuclear NMR characterization revealed that the selected mutant protein retains the global fold of FN3. It also has a modest conformational stability despite mutations at 12 out of 94 residues. These results clearly show the potential of FN3 as a scaffold for engineering novel binding proteins.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Dec
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pubmed:issn |
0022-2836
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pubmed:author | |
pubmed:copyrightInfo |
Copyright 1998 Academic Press.
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pubmed:issnType |
Print
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pubmed:day |
11
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pubmed:volume |
284
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1141-51
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:9837732-Amino Acid Sequence,
pubmed-meshheading:9837732-Animals,
pubmed-meshheading:9837732-Bacteriophage M13,
pubmed-meshheading:9837732-Base Sequence,
pubmed-meshheading:9837732-Binding Sites,
pubmed-meshheading:9837732-Carrier Proteins,
pubmed-meshheading:9837732-DNA, Recombinant,
pubmed-meshheading:9837732-Fibronectins,
pubmed-meshheading:9837732-Humans,
pubmed-meshheading:9837732-Magnetic Resonance Spectroscopy,
pubmed-meshheading:9837732-Models, Molecular,
pubmed-meshheading:9837732-Molecular Sequence Data,
pubmed-meshheading:9837732-Mutagenesis,
pubmed-meshheading:9837732-Protein Conformation,
pubmed-meshheading:9837732-Protein Engineering,
pubmed-meshheading:9837732-Protein Folding,
pubmed-meshheading:9837732-Recombinant Proteins
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pubmed:year |
1998
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pubmed:articleTitle |
The fibronectin type III domain as a scaffold for novel binding proteins.
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pubmed:affiliation |
Department of Biochemistry and Biophysics, University of Rochester Medical Center, Rochester, NY, 14642, USA.
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pubmed:publicationType |
Journal Article,
In Vitro,
Research Support, U.S. Gov't, P.H.S.
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