I am interested in promoter analysis of microRNAs (miRs). I collected the 2 KB upstream sequences of pre-miRs from http://genome.ucsc.edu/cgi-bin/hgTables. Now I need to find out the Transcription start sites of these miRs. I was wondering is there any way to predict the Transcription Start Sites of miRs through UCSC genome Browser. I am new in this field. That's why it will be really helpful if you can provide me any clue.
Thanks in advance.