I have been using the complete bacterial UniProt/trEMBL database for metaproteomics. Now we have been able to carry out 16S-rRNA sequencing on our samples, giving an exact idea of which species are in there. My question is, how does one select and combine sequences from UniProt? Is there any way of searching for all the sequences within a particular genus and then combining the results? I would like to create a pseudo-metagenome based on the 16s data.