Attaching DAS sources to ensembl via links
This is a slightly tricky thing to do and the exact format for doing so has changed occassionally.
There is documenation here: http://www.ensembl.org/info/docs/webcode/linking.html
down the bottom under “Examples – attach external data”.
One of the examples using r= does not work as it specifies the gene as well.
Here is an example that works and attaches the ms_das data source from the Sanger and has a label of “peptides confirmed by mass spectrometrometry” that appears next to the track which corresponds to the DAS data source “title”.
another currently working example that attaches a source to a is this:
and attaching via an ensembl gene: