SoftGenetics - Software PowerTools for Genetic Analysis
 
       

 

Specialized RNA-Seq Analysis Tools

Transcriptome/RNA-seq, Expression and Alternative Splicing Analysis

Next Generation RNA sequencing is a powerful tool for examining the entire transcriptome, but alternative splicing and fusion genes present challenges when aligning RNA-seq data to reference sequences that are not encountered with alignment of DNA sequences. Short reads within exons are usually able to align normally, but challenges arise with reads that span exon-exon junctions and fusion genes.  NextGENe Software provides solutions to these issues with analysis tools designed for RNA-Seq analysis of sequencing data from Illumina GA, HiSeq and MiSeq systems, Roche/454 GS FLX, FLX Titanium & Junior, Life Technologies SOLiD System and the Ion Torrent PGM and Proton systems. Utilizing a novel algorithm not found in programs such as Q-PALMA, Supersplat, and TopHat, NextGENe aligns reads belonging to annotated and novel transcripts while providing the added benefit of a highly graphical interface that does not require use of scripting or the command line. Variant detection, expression level analysis, and isoform identification are all performed in one analysis, with the NextGENe Viewer providing a high level of visualization for review and editing.

 


Figure 1:
The new RNA-Seq Transcript View. The purple links and exons are known,
the blue links are novel, and the orange exons are alternative splicing.

 

NextGENe's approach to RNA-seq analysis takes advantage of a four-step proprietary algorithm to ensure that reads spanning exon junctions are aligned. The approach uses previously-known isoform splice sites but still allows for detection of novel transcripts. Reads are aligned to a pre-indexed reference using NextGENe's Whole Genome Alignment method. Transcripts are predicted based on the alignments.  These predictions are compared to known transcripts and used to generate a transcriptome reference specific to the sample. Finally, the original reads are aligned to the discovered transcripts to ensure best alignment, recalling discovered transcripts and performing mutation detection of SNPs and short indels.

 


Figure 2:
Transcript report

 

The transcript report provides information about detected exons such as location, coverage/link number (reads spanning an exon junction), type of variant (insertion, deletion, new/novel, or normal exon), function, location type (alternative splice site, exon skipping, etc), and isoform/protein information. All reports are highly customizable with many different filter and display options, and expression levels are reported in NextGENe's expression report.

 


Figure 3:
Expression report sorted by RPKM with expression report settings listed above.

 


Figure 4:
Mutation Report

 

For More Information Review or Download Application notes:
Ion PGM RNA-Seq Analysis Application Note
RNA-Seq Analysis with NextGENe Software
Transcriptome Analysis Application Note
SOLiD Transcriptome Application Note
Sequence Analysis Using Barcode/Index Tags of Pooled Samples with NextGENe Software
Demultiplexing Illumina® MiSeq™ Data
Using NextGENe software's Pipeline Automation Tool
Plugin for Torrent Browser automation

 

View live webinars
RNA-Seq Analysis (View) (view on )
IonPGM RNA-Seq (View) (view on )

Pricing & Trial Version:


Request 30-day trial/Price Quote

Reference Material:


Download/View NextGENe® Brochure
NextGENe User Manual
Annotated Reference Genomes

 

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Phone: 814-237-9340 or 888-791-1270
Email: info@softgenetics.com

 

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