Antioxidants 1 Cellular response 1 Cytology 1 Expression levels 1 Green fluorescence proteins Heterologous protein expression 1 Heterologous protein production 1 Heterologous proteins 1 Lipase 1 Methanol 1 Oxidative stress 1 Oxidative stress tolerance 1 Pichia pastoris 1 Protein expressions 1 Proteins 1 RNA 1 Rational construction 1 Synthesis pathways 1 Transcription 1 Yeast 1 gene expression 1 methanol 1 oxidative stress 1 protein 1 reactive oxygen species 1 tolerance 1 yeast 1