Alfred

Alfred computes quality-control metrics and performs read- and haplotype-aware analyses for second- and third-generation sequencing data to support reliable downstream genomic analyses.


Key Features:

  • Multi-sample, read-group-aware QC metrics: Computes read-group-aware, multi-sample metrics including GC bias, base composition, insert size, and sequencing coverage distributions.
  • Haplotype-aware and allele-specific analysis: Performs haplotype-aware and allele-specific feature counting and annotation.
  • Haplo-tagging of BAM/CRAM files: Supports haplo-tagging of BAM/CRAM files to enable haplotype-resolved analyses.
  • Pipeline integration: Compatible with high-throughput sequencing pipelines for large-scale data processing.
  • Support for multiple sequencing technologies: Handles assays from second- and third-generation sequencing platforms.

Scientific Applications:

  • Genomics research: Provides QC and read-level analyses for genomics studies.
  • Personalized medicine: Enables allele-specific and haplotype-resolved analyses relevant to clinical and personalized-medicine contexts.
  • Large-scale sequencing projects and facilities: Facilitates quality monitoring across samples in DNA sequencing facilities and large-scale projects.
  • Variant and haplotype-resolved studies: Supports detailed genetic variant analysis through haplotype-aware and allele-specific counting and annotation.

Methodology:

Computes read-group-aware QC metrics (GC bias, base composition, insert size, coverage distributions), performs haplotype-aware and allele-specific feature counting and annotation, and applies haplo-tagging to BAM/CRAM files.

Topics

Collections

Details

License:
BSD-3-Clause
Maturity:
Emerging
Cost:
Free of charge
Tool Type:
command-line tool
Operating Systems:
Linux, Mac
Programming Languages:
JavaScript, C++
Added:
4/22/2020
Last Updated:
11/5/2025

Operations

Publications

Rausch T, Hsi-Yang Fritz M, Korbel JO, Benes V. Alfred: interactive multi-sample BAM alignment statistics, feature counting and feature annotation for long- and short-read sequencing. Bioinformatics. 2018;35(14):2489-2491. doi:10.1093/bioinformatics/bty1007. PMID:30520945. PMCID:PMC6612896.

PMID: 30520945
PMCID: PMC6612896
Funding: - NIH: U41HG007497

Documentation

Links