of Lmo2 being significantly lower in embryonic stages compared to fetal and adult stages. Other genes have already been shown to co-operate with NUP98-HOXA9 and increase their activity, such as Dnalc4, Fcgr2b, FcrI and Con1. This particular study utilized reverse transcription polymerase chain reaction to measure changes in gene expression. See also Homeobox References External links Transcription factors