tokens: The 5 ' flanking sequence of the 3B gene is extremely A + T rich but contains five G / C rich stretches , each approximately 7bp long , which have strong sequence similarity to the G boxes found upstream of other developmentally regulated Dictyostelium genes .
folded_tokens: the 5 ' flanking sequence of the 3b gene be extremely a + t rich but contain five g / c rich stretch , each approximately 7bp long , which have strong sequence similarity to the g box find upstream of other developmentally regulate dictyostelium gene .