Can someone please help me to understand why is there difference in the sequences length (below) for the 5' UTR of BRCA2 from two sources "Aceview" and "Ensembl"? and which one is the reasonable to be used for any analysis to be done?
>BRCA2.aAug10.mRNA_fragment from 1 to 237, length 237 bp >mRNA BRCA2.aAug10, bp 1 to 237 with coding in upper case and exons in alternate colors gcgcgggctt**gtggcgcgagcttctgaaactaggcggcagaggcggagccgctgtggcactgctgcgcctctgctgcgcctcgggtgtcttttgcggcgg tgggtcgccgccgggagaagcgtgaggggacagatttgtgaccggcgcggtttttgtcagcttactccggccaaaaaagaactgcacctctggagcgg**ac ttatttaccaagcattggaggaatatcgtaggtaaaa
>hg38:chr13:32315480-32315667 **GTGGCGCGAGCTTCTGAAACTAGGCGGCAGAGGCGGAGCCGCTGTGGCACTGCTGCGCCT CTGCTGCGCCTCGGGTGTCTTTTGCGGCGGTGGGTCGCCGCCGGGAGAAGCGTGAGGGGA CAGATTTGTGACCGGCGCGGTTTTTGTCAGCTTACTCCGGCCAAAAAAGAACTGCACCTC TGGAGCGG** >hg38:chr13:32316422-32316460 ACTTATTTACCAAGCATTGGAGGAATATCGTAGGTAAAA
The bolds ones in both sequences match. but the sequence from "Aceview" has longer 5' UTR than "Ensembl". Also, "Ensembl" shows two 5' UTRs, whereas, "Aceview" shows just one 5' UTR.