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rdf:type |
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lifeskim:mentions |
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pubmed:issue |
11
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pubmed:dateCreated |
2005-6-23
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pubmed:abstractText |
Restriction endonucleases and other nucleic acid cleaving enzymes form a large and extremely diverse superfamily that display little sequence similarity despite retaining a common core fold responsible for cleavage. The lack of significant sequence similarity between protein families makes homology inference a challenging task and hinders new family identification with traditional sequence-based approaches. Using the consensus fold recognition method Meta-BASIC that combines sequence profiles with predicted protein secondary structure, we identify nine new restriction endonuclease-like fold families among previously uncharacterized proteins and predict these proteins to cleave nucleic acid substrates. Application of transitive searches combined with gene neighborhood analysis allow us to confidently link these unknown families to a number of known restriction endonuclease-like structures and thus assign folds to the uncharacterized proteins. Finally, our method identifies a novel restriction endonuclease-like domain in the C-terminus of RecC that is not detected with structure-based searches of the existing PDB database.
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pubmed:grant |
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pubmed:commentsCorrections |
http://linkedlifedata.com/resource/pubmed/commentcorrection/15972856-10360178,
http://linkedlifedata.com/resource/pubmed/commentcorrection/15972856-10393910,
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http://linkedlifedata.com/resource/pubmed/commentcorrection/15972856-9862997,
http://linkedlifedata.com/resource/pubmed/commentcorrection/15972856-9973609
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
IM
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pubmed:chemical |
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pubmed:status |
MEDLINE
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pubmed:issn |
1362-4962
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pubmed:author |
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pubmed:issnType |
Electronic
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pubmed:volume |
33
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
3598-605
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pubmed:dateRevised |
2009-11-18
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pubmed:meshHeading |
pubmed-meshheading:15972856-Amino Acid Sequence,
pubmed-meshheading:15972856-Archaeal Proteins,
pubmed-meshheading:15972856-Bacterial Proteins,
pubmed-meshheading:15972856-Computational Biology,
pubmed-meshheading:15972856-DNA Restriction Enzymes,
pubmed-meshheading:15972856-Exodeoxyribonuclease V,
pubmed-meshheading:15972856-Molecular Sequence Data,
pubmed-meshheading:15972856-Protein Folding,
pubmed-meshheading:15972856-Protein Structure, Secondary,
pubmed-meshheading:15972856-Protein Structure, Tertiary,
pubmed-meshheading:15972856-Sequence Alignment,
pubmed-meshheading:15972856-Sequence Analysis, Protein,
pubmed-meshheading:15972856-Software,
pubmed-meshheading:15972856-Viral Proteins
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pubmed:year |
2005
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pubmed:articleTitle |
Identification of novel restriction endonuclease-like fold families among hypothetical proteins.
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pubmed:affiliation |
Department of Biochemistry, Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX 75390-9050, USA. lkinch@chop.swmed.edu
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't,
Evaluation Studies,
Research Support, N.I.H., Extramural
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