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
100/100 · AStandardized, field-standard QC computed by touching the data — every metric states how it was obtained · evidence: measured
This 454 GS FLX Titanium amplicon survey of metagenome yields ~1M medium-length reads at high quality (97.2% ≥Q20/Q30), enabling marker-gene community profiling with moderate depth. Read-length constraints of 454 may limit chimera filtering; assess metadata for PCR target specificity and contamination controls.
The A 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