>3bvkA (A:) observed residues (from ATOM records)
hhsqdpmlskdiikllneqvnkemnssnlymsmsswcythsldgaglflfdhaaeeyeha
kkliiflnennvpvqltsisapehkfegltqifqkayeheqhisesinnivdhaikskdh
atfnflqwyvaeqheeevlfkdildkielignenhglyladqyvkgiaksrk