custom Mex_5_UUUUUU
Matches: UUUUUU
Significance of differences:
p=1e-11 3' UTR
p=8e-11 50 bases upstrand from poly(A) site
p=1e-03 50 bases downstrand from stop codon
p=6e-01 500 bases upstrand from stop codon
p=6e-01 50 bases upstrand from start codon
