Figure 1From: Lower expressions of the human bitter taste receptor TAS2R in smokers: reverse transcriptase-polymerase chain reaction analysisGenomic DNA fragmentation by a homogenate. The genomic DNA isolated from the lower phase of the TRIzol Reagent treated specimen was observed only in 200 bp or less (indicated by “*”), suggesting that genetic DNAs were fragmented into small fraction during the process of homogenate and there is no genomic DNAs that are large enough to express TAS2R in the upper phase.Back to article page