A plasmid-encoded dihydrofolate reductase from trimethoprim-resistant bacteria has a novel...

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© 1995 Nature Publishing Group http://www.nature.com/nsmb

© 1995 Nature Publishing Group http://www.nature.com/nsmb

© 1995 Nature Publishing Group http://www.nature.com/nsmb

© 1995 Nature Publishing Group http://www.nature.com/nsmb

© 1995 Nature Publishing Group http://www.nature.com/nsmb

© 1995 Nature Publishing Group http://www.nature.com/nsmb

© 1995 Nature Publishing Group http://www.nature.com/nsmb

© 1995 Nature Publishing Group http://www.nature.com/nsmb