so i got nucleotide fasta sequence compiled for a set of genes iam working on, and i need to pull out 5' and 3'utrs from them .
before you ask i tried working with a source file containing entire database of utr, i was able to retrieve utr for around half of my geneset. many showed sequence being unavailable
from ncbi i was able to obtain the length of total gene sequence and cds and deduce the utr sequences
for eg gene x: 1..6521 cds : 455..4453
so 5'utr: 1-454 3'utr : 4454-6521. iam going with this rationale
can you suggest a program to retrieve the set number of nucleotides for each gene