The human APOL1 kidney disease risk variant G1, that has a six nucleotide deletion and is able to lyse T. brucei rhodesiense, is under the control of the tetracycline responsive promoter element. The pound (#) sign is used when the line number is not specified or lines are pooled. The gene is only expressed in a tetracycline/doxycycline controllable manner when mice carrying this allele also carry a tTA or rtTA allele. (J:251848)