RNAQuant v0.1.4

Transcript-level counts from BAM files.

RNAQuant converts BAM alignments into transcript-level fragment counts. It accepts transcriptome-aligned BAMs with a transcript FASTA or genome-aligned BAMs with a genome FASTA and GTF/GFF/GFF3, and produces per-sample plus combined count/TPM matrices.

What it does

RNAQuant workflow.

Purpose-built scientific software with downloadable documentation and reproducible local workflows.

Two reference modes

Quantify transcriptome-aligned BAMs directly or reconstruct transcript models from genome + GTF/GFF/GFF3.

Whole-number counts

Raw and EM-estimated transcript counts are exported as integers, with TPM available separately.

Multimapper EM

Deterministic batch EM uses abundance, effective length and alignment evidence to distribute multimapping fragments.

Low-memory browser

v0.1.4 streams BGZF blocks and uses IndexedDB QNAME buckets instead of loading complete BAMs into RAM.

Multi-sample integrity

Immutable sample snapshots and total-count checks protect combined matrices from state/export corruption.

Gene mapping

Optional transcript-to-gene tables add gene_id/gene_name while preserving transcript-level counting.

Usage

CLI examples.

Transcriptome mode requires a transcript FASTA; genome mode additionally requires annotation:

rnaquant --bam A.bam B.bam \
  --transcriptome transcripts.fa \
  --transcript-gene-map tx2gene.tsv \
  --output-dir rnaquant_out

# Genome mode
rnaquant --bam A.bam B.bam \
  --genome GRCh38.fa --annotation gencode.gtf \
  --output-dir rnaquant_out
Install / launch

Start the release locally.

tar -xzf RNAQuant_CLI_v0.1.4_linux_x86_64.tar.gz
cd RNAQuant_CLI_v0.1.4_linux_x86_64
chmod +x rnaquant
./rnaquant --help
Research-use software. RNAQuant is a development research release. Review run_summary.tsv and reference/strand settings before downstream differential-expression analysis.