There are 8 comments on this article. To see them or add your own, view this post on the forum

Hello,

I have a BAM from RNA Seq experiment. The reads are aligned with tophat and then I filtered secondary reads, fixed mate pairs, marked duplicates with picard and realigned with gatk. However, when I try to use BaseRecalibrator function,

-T BaseRecalibrator -nct 12 -R ./SusGenome10v69/Sus_scrofa.Sscrofa10.2.69.dna.toplevel.fa -I ./7_15.corrected.ordered.sremoved.marked.fixed.realigned.fixed.corrected.ordered.sremoved.marked.fixed.realigned.fixed.bam -knownSites ./SusGenome10v69/Sus_scrofa.vcf -o ./7_15.RecalData.grp

It stops with the error:

ERROR ------------------------------------------------------------------------------------------

ERROR stack trace

org.broadinstitute.sting.utils.exceptions.ReviewedStingException: Trying to clip before the start or after the end of a read at org.broadinstitute.sting.utils.clipping.ReadClipper.hardClipByReferenceCoordinates(ReadClipper.java:534) at org.broadinstitute.sting.utils.clipping.ReadClipper.hardClipByReferenceCoordinatesLeftTail(ReadClipper.java:176) at org.broadinstitute.sting.utils.clipping.ReadClipper.hardClipAdaptorSequence(ReadClipper.java:389) at org.broadinstitute.sting.utils.clipping.ReadClipper.hardClipAdaptorSequence(ReadClipper.java:392) at org.broadinstitute.sting.gatk.walkers.bqsr.BaseRecalibrator.map(BaseRecalibrator.java:244) at org.broadinstitute.sting.gatk.walkers.bqsr.BaseRecalibrator.map(BaseRecalibrator.java:131) at org.broadinstitute.sting.gatk.traversals.TraverseReadsNano$TraverseReadsMap.apply(TraverseReadsNano.java:230) at org.broadinstitute.sting.gatk.traversals.TraverseReadsNano$TraverseReadsMap.apply(TraverseReadsNano.java:218) at org.broadinstitute.sting.utils.nanoScheduler.NanoScheduler$ReadMapReduceJob.run(NanoScheduler.java:471) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1146) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:679)

ERROR ------------------------------------------------------------------------------------------

ERROR A GATK RUNTIME ERROR has occurred (version 2.4-7-g5e89f01):

ERROR

ERROR Please visit the wiki to see if this is a known problem

ERROR If not, please post the error, with stack trace, to the GATK forum

ERROR Visit our website and forum for extensive documentation and answers to

ERROR commonly asked questions http://www.broadinstitute.org/gatk

ERROR

ERROR MESSAGE: Trying to clip before the start or after the end of a read

ERROR ------------------------------------------------------------------------------------------

The bam file validates properly with the Picard's ValidateSamFile function. I tried with gatk versions, 2.3-9 and 2.4-7 obtaining the same results.

I used the same procedure with other samples without any problem. However, I am unable to recalibrate this sample. I tried to realign the reads with different tophat versions, applied different filters and different procedures, however i am unable to use the BaseRecalibrator function with this sample.

Could you help me?

Thanks!

There are 8 comments on this article. To see them or add your own, view this post on the forum