Human testicle specificity protein 50 gene expression regulator screening system and method of screening its gene expression regulator

The present invention relates to a screening model of human testicular specific protein 50 (TSP50) expression regulator and method for screening TSP 50 gene expression regulator. Said screening system contains a recombinant carrier containing exogenous polynucleotide and host cell transformed or transfected by said recombinant carrier. Said recombinant carrier contains original carrier and human TSP 50 gene promoter, in which the described original carrier contains a report gene and contains no promoter, the described human TSP 50 gene promoter is connected to upstream of report gene, and theactivity of human TSP 50 gene promoter has correlation with expression of report gene. Said invention also discloses a method for constructing said screening system and its application.