Provenance — who produced it, who reused it
Linked to 1 papers in the literature. Roles are inferred factual signals (who deposited the data vs who reused it), with counts — never a judgement about any author.
1 further paper cites this accession but reuse could not be confirmed.
Deep data QC
75/100 · CStandardized, field-standard QC computed by touching the data — every metric states how it was obtained · evidence: measured
Human gut metagenome amplicon sequencing via Illumina MiSeq with 91.4 million reads and 32.2 billion bases at substantial depth but moderate quality (89.6% Q20, 82.6% Q30). The 55.4% GC and 3,085 files indicate a large, well-powered study. The lower base accuracy warrants careful OTU denoising (DADA2 or similar) and chimera-removal before community composition analysis.
The C grade is a transparent weighted average. Each metric below scored from 0–100% against the published amplicon thresholds, weighted by its importance; nothing is hidden or subjective.
measured = computed from the data · extrapolated/reported = derived or from the repository · dq-1.0