Hi! I am trying to retrieve certain 3'UTR sequences from H. sapiens using biomaRt.
The first problem I got was getting de ensembl_gene_id because of a problem with the mart option, but this was able to handle it by using:
ensembl = useMart("ENSEMBL_MART_ENSEMBL", dataset = "hsapiens_gene_ensembl", host = "www.ensembl.org")
The problem now is that if I try to retrieve the 3UTR sequences with that mart this error appears:
Seqs = getSequence(id = IDS[,1], type= "3utr", mart = ensembl) Error in martCheck(mart, "ensembl") : This function only works when used with the ensembl BioMart.
Does anyone has any idea how to retrieve sequences??
Thanks!