Hi Jillian,
Sorry to hear you were having issues with the mutation mapper.
I dug a little deeper and the issue you are experiencing is because we made some changes recently.
First off all, it annotates mutations on the fly if you give the following columns:
Chromosome Start_Position End_Position Reference_Allele Variant_Allele
Currently it only shows those mutations which affect the canonical transcript. For HLA-A that is ENST00000431930. According to the VEP annotator the list you sent us does not affect that transcript. I noticed that the mutations were in VCF format instead of MAF format which might throw the annotator off.
If you only have the columns:
Hugo_Symbol Protein_Change
It will use the provided annotations and show them displayed on the canonical transcript for HLA-A. This is why this *does* work in the current production version.
We're working on a new version of mutation mapper, which will display all transcripts for a given hugo symbol. It also won't override the annotations if they are provided by the user. That should get around issues like this.
Best wishes,
Ino