I am looking at the information of codon mutation from dbSNP. I download the dataset, ASN.1 flatfile, it only include the information about allele, readingFrame (The position in codons [1,2,3]) and residue. How can I know the whole codons, not only the mutation site?
[allele=C, readingFrame=3, residue=S, fxn_class=reference]
[allele=U, readingFrame=3, residue=S, fxn_class=Synonymous]
How can I know the mutate codon is from UCC to UCU or from AGC to AGU ?
Thanks for your help!