Figure 6
From: Apical membrane P2Y4 purinergic receptor controls K+ secretion by strial marginal cell epithelium
Gel electrophoresis of reverse transcription-polymerase chain reaction (RT-PCR) products from gerbil stria vascularis. Gene-specific primers were used for detection of transcripts for segments of P2Y2 and P2Y4. +, Reactions performed in the presence of reverse transcriptase; -, reactions performed in the absence of reverse transcriptase. Position of the bands for the expected lengths of the RT-PCR products [447 bp, P2Y4; 301 bp, P2Y2] are indicated and a 100-bp ladder is shown (L).