For example, hsa-miR-3687?
It's entry in the mirBase can be found here: http://www.mirbase.org/cgi-bin/mirna_entry.pl?acc=MI0016088
Is it simply a matter of lacking information?
from wikipedia " When two mature microRNAs originate from opposite arms of the same pre-miRNA, they are denoted with a -3p or -5p suffix"
so I guess if there is no suffix, it means that this mature miRNA originates only from one arm,as it is possible to see from the hsa-miR-3687 sequence in mirbase, where only one sequence is highlighted in violet, sequence of the mature mirna. Hope this helps!
from wikipedia " When two mature microRNAs originate from opposite arms of the same pre-miRNA, they are denoted with a -3p or -5p suffix"
so I guess if there is no suffix, it means that this mature miRNA originates only from one arm,as it is possible to see from the hsa-miR-3687 sequence in mirbase, where only one sequence is highlighted in violet, sequence of the mature mirna. Hope this helps!
Yes, miR-3687 is processed from the 3' portion of the stem loop, so it could be considered a "-3p" if there were evidence for both arms. 3687 does not appear to be an abundant miRNA, and there's even less evidence for a mature "-5p" counterpart. Note that the relative abundance of -3p and -5p is different from one miRNA stem loop to the next.
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