Question: Convert ensembl gene ID
gravatar for abc
23 months ago by
abc30 wrote:

I have some Old Ensembl gene ID and convert them to new Ensembl gene ID. But for some old ones I have more than one new ID. How I should select which one is what I need?



rna-seq ensembl • 879 views
ADD COMMENTlink modified 22 months ago by abascalfederico980 • written 23 months ago by abc30

Can you show some examples? Like some old ids and how you've converted them and multiple new ids for one old id.

ADD REPLYlink written 23 months ago by venu4.6k
gravatar for abascalfederico
22 months ago by
abascalfederico980 wrote:

Sometimes a gene model is split into two different genes. So, there is no correct choice between the multiple new IDs if that is what happened. Alternatively, multiple ids may have arisen because Ensembl now uses build GRCh38, and in build 38 there are alternative contigs. Hence, the same gene can be referenced by two different identifiers (one for the reference chromosome, one for the alternative contig). You can discern if this is what is going on by getting the "chromosome" names for each of the converted identifiers. Look also at the gene names.

ADD COMMENTlink written 22 months ago by abascalfederico980
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