SRR3652244

This is a mouse miRNA-Seq library (short ~50 bp single-end Illumina HiSeq 2000 reads), and the data are technically clean: pct_q30_bases of 92.3% and a mean base quality of 34.8 indicate excellent per-base accuracy, while zero adapter content and negligible N content (0.024%) mean the reads need little trimming before use. What pulled the grade down to a B is the duplication_rate_pct of 84.7%, which scored 0 and is the single largest drag on the score — though for a small-RNA library this is partly expected, since miRNAs are short, highly abundant, and sequenced to saturation, so a large share of "duplicates" are genuine biological copies rather than PCR artifacts, and you should deduplicate cautiously (or not at all) for quantification. All scored metrics here were directly measured (evidence_strength is reported on measured QC fields), so the read is not provisional, but note that the depth and library-complexity caveats of miRNA-Seq mean this dataset is well-suited to miRNA expression profiling and less so to applications needing high unique-fragment diversity.