Fig. 2From: Association of functional genetic variants in TFF1 and nephrolithiasis risk in a Chinese populationTranscriptional activity affected by rs3761376. Different expression vectors with either rs3761376 allele (G or A) which included the sequence of the promoter of TFF1 were transfected into HEK-293 cells. Then, the transcriptional activity was detected by real-time PCRBack to article page