passages.id: split_8_test_2422_passage
passages.type: progene_text
passages.text: We surveyed our database of 15 970 genes / expressed sequence tags ( ESTs ) representing the normal human CD34 ( + ) cells transcriptosome ( http : / / westsun.hema.uic.edu / cd34.html ) , using the UniGene annotation text descriptor , to identify genes with motifs consistent with transcriptional regulators ; 285 genes were identified .