What should be the size range of UTRs at 5' & 3' end so that if a variant falls in this range I can call it 5' UTR variant or 3' UTR variant? Is there any official terminology/definition for it?
I saw this : http://utrdb.ba.itb.cnr.it/ but couldn't find anything related to UTRs size..
Please help me. Thanks in advance! :)