Hi, I've really liked using Biomart in the past, but I've recently realized that I don't know how to use it to get info on genes like this: http://www.ensembl.org/Gallus_gallus/Gene/Summary?db=otherfeatures;g=416764;r=15:25280-34065;t=XM_415059.5
which don't originate from Ensembl and don't have a formal ENS... ID. Is there a way to do it or do I have to find an alternative to Biomart? Thanks
No, don't go looking for an alternative to BioMart! It's such a great, easy to use tool. In addition to @Jean-Karim Heriche's answer, note that XMs are RefSeq mRNA predicted IDs. So that's the external reference ID you need to select. Also, leave the versioning out: so use XM_415059 but not XM_415059.5.
This is an example in XML:
Please do not cross-post to BioStars and StackExchange. https://bioinformatics.stackexchange.com/questions/2545/can-you-use-biomart-to-get-info-about-genes-that-didnt-originate-from-ensembl