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. 2003 Feb;69(2):987–995. doi: 10.1128/AEM.69.2.987-995.2003

FIG. 1.

FIG. 1.

Mutations in the selected MtL mutants during the evolution of laccase total activity in S. cerevisiae. +, mutation; ⧫, new mutation. Grey indicates synonymous mutations; subscript numbers on codons indicate codon usage. Footnote symbols: a, error-prone PCR; b, in vivo gap repair; c, in vivo recombination; d, StEP.