>3bvkB (B:) observed residues (from ATOM records) hhsqdpmlskdiikllneqvnkemnssnlymsmsswcythsldgaglflfdhaaeeyeha kkliiflnennvpvqltsisapehkfegltqifqkayeheqhisesinnivdhaikskdh atfnflqwyvaeqheeevlfkdildkielignenhglyladqyvkgiaksrk