elif (gene_name is None and protein_name is not None and 
                  protein_name != 'Uncharacterized protein'): # record exists in uniprot collection with non-filler protein_name
                self.rna_hl_collection.update_one({'protein_name': protein_name},
                                                  {'$set': {'modified': datetime.datetime.utcnow(),
                                                            'gene_name': gene_name},