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
33/100 · FStandardized, field-standard QC computed by touching the data — every metric states how it was obtained · evidence: measured
This metagenome amplicon dataset from 454 GS FLX Titanium generated 174 thousand reads (71.9 megabases) with notably lower quality (69.9% Q20, 53.1% Q30) and elevated N-content (1.77%). The small scale and reduced quality are characteristic of 454 sequencing limitations; useful only for preliminary community surveys or when long reads are essential for phylogenetic resolution.
The F 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