Abstract
The transposase of IS30 catalyses different transpositional rearrangements via the dimer (IS30)2 intermediate structure. Mutation analysis provides evidence that the C-terminal part of IS30 transposase is required for the formation and dissolution of (IS30)2 dimer. C-terminal mutants are also defective in transpositional fusion; however, this deficiency can be 'suppressed' by addition of the final product of site-specific dimerisation, the core (IS30)2 intermediate structure. The transposase part studied shows significant homologies in three highly conserved regions to proteins of IS30-related mobile elements.
Publication types
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Comparative Study
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Research Support, Non-U.S. Gov't
MeSH terms
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Amino Acid Sequence
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Bacterial Proteins*
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Base Sequence
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Consensus Sequence
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DNA Mutational Analysis
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DNA Nucleotidyltransferases / chemistry*
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DNA Nucleotidyltransferases / metabolism*
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DNA Transposable Elements
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Deoxyribonucleases, Type II Site-Specific / chemistry
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Dimerization
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Kinetics
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Molecular Sequence Data
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Mutagenesis, Site-Directed
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Oligodeoxyribonucleotides
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Open Reading Frames
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Plasmids
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Recombinant Fusion Proteins / chemistry
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Recombinant Fusion Proteins / metabolism
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Sequence Alignment
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Sequence Deletion
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Sequence Homology, Amino Acid
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Templates, Genetic
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Transposases
Substances
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Bacterial Proteins
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DNA Transposable Elements
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Oligodeoxyribonucleotides
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Recombinant Fusion Proteins
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DNA Nucleotidyltransferases
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Transposases
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endodeoxyribonuclease XBAI
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BglII endonuclease
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Deoxyribonucleases, Type II Site-Specific