This workflow carries out alignments using TCoffee and ClustalW2 for a set of non-redundant proteins where the starting point is a particular genomic coding sequence representing only one member of the gene family in a given species.   For the BioExtract Server implementation, the necessary steps for accomplishing this task involve: 1.   Selecting the NCBI tblastx tool and providing the accession number of the known nucleotide sequence record as input. 2.   The output from ...