This file is a Amino-acid grouping file for use with NEWBOX. Each line contains a set of amino acids which are considered 'similar' when calculating the consensus. The .SIM file is different and is used in colouring residues that are "similar" to a single consensus residue. This table was taken from ClustalW v1.60 Other format requirements are the same as for SIMPLIFY.TXT in the GCG-package. .. ACST NT EQ NQ ED KRQH GN NH FY IVLM