Entering edit mode
Dear list,
I've just started analyzing a ChIP-seq data set. I generated a peak
list using "standard" utilities (bowtie, MACS) and loaded it into R in
the ChIPpeakAnno package. I managed to annotate the peaks but when I
tried to retrieve the peak sequences using the getAllPeakSequence()
function I ran into a problem:
peaksequences<-getAllPeakSequence(mergedpeakannotations, upstream=100,
downstream=100, genome=mart, AnnotationData=getAnnotation(mart,
featureType="TSS"))
Error in getBM(c(seqType, type), filters = c(type, "upstream_flank"),
:
Query ERROR: caught BioMart::Exception::Usage: Filter upstream_flank
NOT FOUND
The error message sometimes states downstream_flank instead of
upstream. At one point I got it to run on a small subset of the data
(first 10 rows) but later the same command failed with this same error
message.
Some info about the objects:
mergedpeakannotations: RangedData object, created using
mergedpeakannotations<- annotatePeakInBatch(mergedpeak.rd,
AnnotationData=getAnnotation(mart, featureType="TSS"))
mart=useMart(biomart="ensembl", dataset="hsapiens_gene_ensembl")
Anybody got a clue about why this fails? All help would be much
appreciated!
Best regards!
Anna
sessionInfo()
R version 2.15.1 (2012-06-22)
Platform: x86_64-pc-mingw32/x64 (64-bit)
locale:
[1] LC_COLLATE=Swedish_Sweden.1252 LC_CTYPE=Swedish_Sweden.1252
[3] LC_MONETARY=Swedish_Sweden.1252 LC_NUMERIC=C
[5] LC_TIME=Swedish_Sweden.1252
attached base packages:
[1] grid stats graphics grDevices utils datasets
methods base
other attached packages:
[1] ChIPpeakAnno_2.6.0 limma_3.14.1
[3] org.Hs.eg.db_2.8.0 GO.db_2.8.0
[5] RSQLite_0.11.2 DBI_0.2-5
[7] AnnotationDbi_1.20.1
BSgenome.Ecoli.NCBI.20080805_1.3.17
[9] BSgenome_1.26.1 GenomicRanges_1.10.2
[11] Biostrings_2.26.2 IRanges_1.16.2
[13] multtest_2.14.0 Biobase_2.18.0
[15] biomaRt_2.14.0 BiocGenerics_0.4.0
[17] VennDiagram_1.5.1
loaded via a namespace (and not attached):
[1] MASS_7.3-22 parallel_2.15.1 RCurl_1.95-1.1 splines_2.15.1
stats4_2.15.1
[6] survival_2.36-14 tools_2.15.1 XML_3.95-0.1
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