RefShannon

RefShannon assembles genome-guided transcriptomes from RNA-Seq short reads to reconstruct isoform-level transcripts and resolve alternative splicing by exploiting transcript abundance variation.


Key Features:

  • Genome-Guided Approach: Uses a genome-guided strategy to map RNA-Seq short reads and assemble them into transcripts.
  • Abundance-Aware Assembly: Leverages variations in transcript abundance to distinguish and accurately reconstruct different isoforms.
  • Handling Alternative Splicing: Resolves complex alternative splicing events to enable isoform-level reconstruction from a single gene.
  • Improved Sensitivity: Demonstrates up to 22% improved sensitivity at a given specificity in comparative evaluations against other transcriptome assemblers.
  • Python Implementation: Implemented in Python.

Scientific Applications:

  • Isoform-level analysis: Reconstruction of individual transcript isoforms for downstream analyses.
  • Gene expression quantification: Supports quantification of transcript-level expression from RNA-Seq data.
  • Alternative splicing studies: Identification and characterization of alternative splicing events.
  • Transcript diversity exploration: Exploration of transcriptome complexity and diversity within genomic loci.

Methodology:

Performs genome-guided assembly by mapping and stitching RNA-Seq short reads and exploits transcript abundance variation to distinguish and reconstruct isoforms.

Topics

Details

License:
GPL-3.0
Programming Languages:
Python
Added:
1/18/2021
Last Updated:
2/6/2021

Operations

Publications

Mao S, Pachter L, Tse D, Kannan S. RefShannon: A genome-guided transcriptome assembler using sparse flow decomposition. PLOS ONE. 2020;15(6):e0232946. doi:10.1371/journal.pone.0232946. PMID:32484809. PMCID:PMC7266320.

PMID: 32484809
PMCID: PMC7266320
Funding: - National Institutes of Health: 1R01HG008164