Thanks Emily. I have used release 65 with methylation data annotations and release 75 with RNASeq data. To keep everything in sync can re annotate the methylation data,which was used with GRCh65 release 65, with release 75 ? I am using only primary assembly not the patches and haplotyes. Hope this should be the right way.(Because I since the sequence level information isnt changed, I would just like to re-annotate the data rather than remapping and then annotating it with 75 release) Thanks.
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Probably not a lot (if any). There may be patch differences but they do not change the coordinates.
I think the "builds" you are referring to are the releases of Ensembl. Ensembl release 54 got hg18, so between 54 and 75 the genome build was hg19. Release 76 brought GRCh38, which is the current assembly.
Hi genomax2, thanks for your reply. I am talking about the releases, sorry for the confusion. The nomenclature is different in case of different sources of annotations so I did not refer to hg18 or hg19 because I am using annotations from Ensemble. So yes, Grch37 will be technically hg19 build(accept minor differences).
How different are these two releases in terms of annotations?(65 and 75)
You can get release 75 info here: http://feb2014.archive.ensembl.org/Homo_sapiens/Info/Index Not sure about 65.
However, GENCODE provides information about which annotation is used for which Ensembl release: http://www.gencodegenes.org/stats/archive.html