I was comparing isoforms of a gene and got realised that they all were having the same CDS region though their 5' UTR regions were different but their 3' UTR regions were same. Can someone explain what is the purpose and importance of these isoforms when they have the same CDS and same proteins and also what is the purpose of having different 5'UTRs but same 3' UTR regions (even on transcript does not have 3' UTR). Thank you!
Actually the gene I am working on has the same condition where the all the isoforms of the gene codes for the same enzyme and how this may help to visualise them in the context of the gene and its other transcripts? I could not understand your this point. Can you explain this how?