Hi @iordanis ,
Yes, definitely. Training a region-specific classifier is even shown in the RESCRIPt tutorial on the forum, e.g., here (shown with SILVA, but you can do the same with an NCBI classifier following get-data-ncbi
):
It sounds like you may be looking for q2-sidle, depending on the V regions that you have. But if you have a bunch of sequences from different V regions mixed in a single file you could technically also use a full-length 16S classifier to taxonomically classify all of these.
Good luck!