Table 1.

Anomalous microRNAs.

	miRBase id	Species	Libraries	Nature of Anomaly	remarks
1	hsa-miR-619	Human	SRR018353, SRR019624	misannotaton	m. on opp. strand
2	hsa-miR-1975	Human	SRR013571, SRR029124	misannotation	RNY5 ?
3	mmu-mir-546	Mouse	SRR034120, SRR014235	non-canonical	snoRNA ?
4	mmu-mir-1957	Mouse	SRR023850, GSM307159	misannotation	wrong mature
5	dme-mir-929	D.mel	SRR014278, SRR031696	misannotation	mature is star

A list of microRNAs that have either another potential function or incorrectly identified mature and star sequences.

These were analyzed by studying the distribution of reads over the pre-miRNA. (see also Figure 8).