improvement to build mutant_data
improvement to build mutant_data

cmunk/protwis,protwis/protwis,fosfataza/protwis,cmunk/protwis,fosfataza/protwis,protwis/protwis,cmunk/protwis,protwis/protwis,fosfataza/protwis,cmunk/protwis,fosfataza/protwis