SRP001634

ENA first seen 2020

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.

Reused by

1 further paper cites this accession but reuse could not be confirmed.

Deep data QC

100/100 · A

Standardized, field-standard QC computed by touching the data — every metric states how it was obtained · evidence: measured

What this means

claude:haiku

Human gut metagenome amplicon sequencing via 454 GS FLX Titanium from 5,645 samples reaching 1.69 trillion bases (92.7% Q20), representing one of the largest microbiome studies; despite 454 platform limitations, comprehensive sampling enables powerful microbiota diversity analyses.

Data type / assay

amplicon

Organism

human gut metagenome

Instrument

454 GS FLX Titanium

Platform

ILLUMINA

Read type

short-read

Files available

FASTQ (raw reads), BAM/CRAM (aligned)

N numbers (samples, groups)

5,645 runs

Metrics (value · how obtained)

checksum ok yes reported

total bases 1686884466743 reported

total reads 8319956717 reported

n content pct 0 measured

pct q20 bases 92.7 measured

pct q30 bases 90.5 measured

gc content pct 47.8 measured

mean read length 175 measured

mean base quality 35.4 measured

adapter content pct 0 measured

duplication rate pct 91.2 measured

How this grade was computed

Weighted mean of 2 scored metric(s) → 100/100

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.

pct q30 bases 90.5 measured ×1 100%

adapter content pct 0 measured ×0.5 100%

QC cost 3 s compute

measured = computed from the data · extrapolated/reported = derived or from the repository · dq-1.0