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
67/100 · DStandardized, field-standard QC computed by touching the data — every metric states how it was obtained · evidence: measured
This environmental metagenome amplicon sequencing via 454 GS FLX Titanium provides untargeted microbial/eukaryotic community surveying (1.3 million reads, 531 MB bases) with modest per-base accuracy (Q30=80.2%)—454 chemistry permits longer reads suitable for homopolymer-poor marker genes (e.g., 16S rRNA) but suffers from systematic length-dependent errors requiring specialized quality filtering and consensus calling.
The D 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