Transcriptional analysis
Y. lipolytica JMY1212 wide type and recombinant strains
overexpressing BGL1 and BGL2 were grown to midexponential
phase in defined media and then transferred
into fresh medium containing either glucose or cellobiose
as the sole carbon source. Cells were recovered from
the medium at 20 min and 1 h, respectively, and rapidly
frozen in liquid nitrogen and stored at −80°C until use.
Total mRNA was isolated using RNeasy Plus Mini Kit
(QIAGEN) and reverse transcription was performed
with iScript™ cDNA Synthesis Kit (BIO-RAD) according to the manufacturer’s instructions. Transcription of the
BGLs was analyzed by PCR, using gene-specific primers
and sequencing of the PCR products (Additional file 1:
Table S3).