[BioC] from rat codelink to human locuslink

[Sean Davis]

On Friday 03 November 2006 17:26, Weiwei Shi wrote:
> another question on this:
> > getHomolog(id = "Rn.105679", from.type="unigene",
>
> + to.type="entrezgene",from.mart=rat, to.mart=human)
> but I checked our database output:
> Rn.105679
> its corresponding human locuslink id = 54838,
>
> I am really confused now at which is correct.

The mapping from one ID to another and then to another species and then to 
another ID in the new species is bound to be slightly different depending on 
the institution doing the mapping.  It appears that Ensembl does not have a 
gene that Unigene Rn.105679 maps to.  It sounds like you are using NCBI 
mapping resources in "your database"; if you have a relational database of 
NCBI information, why not use it if you like.  The important thing is to be 
able to describe whatever process you use in a reproducible way.

Sean