Hello, Recently i have used galaxy to find corresponding amino acids to a list of SNPs that i have. i used aaChange tool from the tool panel for this purpose. After obtaining the result i checked the correctness of this results by searching dbSNP for randomly chosen SNPs. however, some of those SNPs mapped to incorrect amino acid, For example, The SNP( rs11549096), was mapped by Galaxy to the change ( Asp:Tyr/His, ) , Searching the dbSNP for this SNP Shows that the Change should be Asp :Asn and the link for this SNP in the dbSNP is : http://www.ncbi.nlm.nih.gov/projects/SNP/snp_ref.cgi?searchType=adhoc_search&type=rs&rs=rs11549096 So, the reference is correct in all cases i searched (more than a thousand), the position of change in the aa is correct, *but* the alternative aa is not correct in all cases. What causes this mistake, and how to solve this problem? Note: my list contains hundreds of thousands of SNPs, so, i can not check each one of them. prompt response is appreciated, Best Regards, Maha