Align Paired End Reads Using Blast
Hi all, Has anyone align illumina paired end reads using BLAST, I used gsnap to do the alignment first, then use BLAST to align the reads which were not mapped by gsnap. It seems that BLAST can only...
View ArticleCombination Of Paired-End And Single-End Samples In Chip-Seq Tf Study
I have 2 batches of chip-seq samples:(A) One biological SE replicateThis batch, actually, consists of 4 SE Chip-seq samples - one treatment, one control, both have IP controls. All are SE sequenced at...
View ArticleTophat 2 - Both Pairs Map Concordantly
Hi,I have just run the following command tophat2 --solexa1.3-quals -p 12 -r 80 --max-multihits 1 --no-mixed --no-discordant /home/Turkey/Index/turkeyindex /home/Turkey/WTCHG24920061sequence1.fa...
View ArticleCounting Reads On Paired-End Strand-Specific Rnaseq Data
Hello everybody, I've a strand-specific paired-end library on which I'd like to perform some standard DGE analysis. However I'm quite unclear about how to go about counting reads. Usually when I have a...
View ArticlePair End Sequencing Problem
Dear all,I have a quick question on pair end sequencing. I used to work with Illumina without the pair end reads and I have dificulties to understand how the pair end reads work.In the "old" system you...
View ArticleEstimating Insert Size From Paired End Data.
Hi,I have paired end data from illumina. To estimate the insert size in silico ( from scratch ), I have aligned the reads as single end reads to the genome ( mouse ). Now I have the two alignment files...
View ArticleDownload Large Paired-End Rna-Seq And Microarray Data Of The Same Sample (>...
Hi,I was trying to find if there is any large size paired-end RNA-Seq and microarray data of the same sample, but I wasn't able to find as much data as I wanted.Could somebody please point out where I...
View ArticleTool: Trim Adapters Of Paired-End Reads (Fastq)
Trimming adapter sequences of paired-end experiments is sometimes a problem. If you clip the mates in two steps, it migh happen that you loose one mate, but not the corresponding one, resulting in two...
View ArticleWhat Does Requirebothendsmapped From Rsubread Package Means?
Hi,I am using the featureCounts from the Rsubread package. And I am trying to understand what does the requireBothEndsMapped option do. The manual says"logical indicating if both ends from the same...
View ArticleTophat - Understated Number Of Reads In The "Align_Summary.Txt" File
Hi all. I'm working with paired-end rna-seq data to assemble transcriptome of my species of interest. I've just realized that Tophat is understating the number of reads that I actually have and...
View ArticleSamtools Count Paired-End Reads
Hi, I used tophat to align paired-end reads from an rna-seq experiment and I obtained an accepted_hits.bam alignment file. Using the accepted_hits.bam I'd like to count the number of properly aligned...
View ArticlePaired-End Reads Alignment For Variant Calling ?
I'm trying to do variant calling (SNPs, Indels) from exome-sequencing data, and the sequencing was done with paired end reads. I would like to use BWA for mapping/alignment, followed by PiCard and GATK...
View ArticleSorting Fastq Files After Trimming (Orphans And Pe)
I have a bunch of Illumina PE data that has been run through fastx trimmer and clipper. I am ready to map these reads, but am needing to create 2 files for paired end reads (the left and right hand...
View ArticleTake A Subset Of A Fastq Paired-End Sample
Hi,I have two paired-end fastq compressed files coming from HiSeq RNA-SEq experiment, ie., pair.1.fastq.gz and pair.2.fastq.gz.The files are very large so I wanted to just take a few million/thousand...
View ArticleOrientation in paired-end sequencing?
I am new to bioinformatics and currently learning how to use Bowtie 2. As written in the manual: A pair that aligns with the expected relative mate orientation and with the expected range of distances...
View ArticleBasic Paired-End Sam Questions
I can't seem to find answers to 2 very basic questions.For a paired-end sam, is there a separate sam line for mate1's and mate2's? If so, how do find the mate of a given sam line?Thanks
View ArticleBest Cnv Software?
Hello,I know there are many reviews out there, but I can't seem to find exactly what I like.I found this software called mrCaNaVaR, and it's great since it has it's own aligner which is supposed to be...
View ArticleDna Sequencing Using Abyss-Pe Of Paired End Reads
Hello! I've got to run abyss-pe on 2 files I've got and find the best parameters (k and so on) that would create the best contig coverage (sorry if I'm messing things up, I'm a programmer that had a...
View ArticleCrossbow Final Step Failing On Emr
Hello, I am trying to run Crossbow via EMR command line. I managed to complete all the crossbow steps- Alignment with Bowtie, Calling SNPS and Postprocess. I am getting an error in the final step Get...
View ArticleHow To Interpret Crossbow Data
Hello,May I know how to interpret Crossbow output. Is there any chance of building a SAM or BAM file from Crossbow output. I am looking into genome mapping. I know there are many tools available for...
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