How find gene ID from Nucleotide Sequence?

Question

[asalari1]

I have some nucleotide sequence how can I find gene ID of them?

Thank you very much if try to help me.

Answer 1

[Jean-Karim Heriche]

There are several approaches depending on the situation. If you know the species and an annotated genome or transcriptome is available, map the sequence to the annotated genome or transcriptome. If there's no annotated genome nor transcriptome available for the species of interest, you could try a phylogenetic approach by finding out which gene(s) it is orthologous to in a closely related species. Finally if you don't know which species your sequence comes from, then you can blast it against all sequences at NCBI and hope some of the top hits make sense.