BioMart: Convert IDs
BioMart is a very handy tool when you want to convert IDs from different databases. The following is a list of 27 IDs of Sus scrofa proteins from the NCBI RefSeq database:
Generate a list that shows to which Ensembl Gene IDs and to which gene names these RefSeq IDs correspond. Do these 27 proteins correspond to 27 genes?
Click New. Choose the ENSEMBL Genes database. Choose the Pig genes (Sscrofa11.1) dataset.
Click on Filters in the left panel. Expand the GENE section by clicking on the + box. Select Input external references ID list - RefSeq peptide ID(s) and enter the list of IDs in the text box (either comma separated or as a list). HINT: You may have to scroll down the menu to see these. Count shows 20 genes.
Click on Attributes in the left panel. Select the Features attributes page. Expand the GENE tab by clicking on the + box. Select Gene name. Expand the EXTERNAL tab. Select RefSeq Peptide ID.
Click the Results button on the toolbar. Select View All rows as HTML or export all results to a file.