* piece 1, hg13_ct_PXR/RXRrange=chr21:24956596-24956618, config: linear, direction: +, begin: 1, end: 23


            *         *10       *         *20     
 5' a a a a a t a a a c t c t c a t g a g c t t g 3' 
    t t t t t a t t t g a g a g t a c t c g a a c PXR 17.2 bits

