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BACKGROUND The effect of single and multiple amino acid substitutions in the green fluorescent protein (GFP) from Aequorea victoria has been extensively explored, yielding several proteins of diverse spectral properties. However, the role of amino acid deletions in this protein -as with most proteins- is still unknown, due to the technical difficulties(More)
9-fluorenylmethoxycarbonyl (Fmoc) and 4,4'-dimethoxytrityl (DMTr) are orthogonal hydroxyl protecting groups that have been used in conjunction to assemble oligonucleotide libraries whose variants contain wild-type and mutant codons randomly interspersed throughout a focused DNA region. Fmoc is labile to organic bases and stable to weak acids, whereas DMTr(More)
Current sequence-based approaches to identify enzyme functional shifts, such as enzyme promiscuity, have proven to be highly dependent on a priori functional knowledge, hampering our ability to reconstruct evolutionary history behind these mechanisms. Hidden Markov Model (HMM) profiles, broadly used to classify enzyme families, can be useful to distinguish(More)
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