>1y7uA (A:) observed residues (from ATOM records)
kgktanesrvfktsrvfptdlndhntlfggkilsemdmvasisasrhsrkecvtasmdwv
dflhpvrssdcvsyesfviwtgrtsmevfvkvvseylisgekriaatsfvtfvalskenn
pvpvprvipdteeekeshriavlraeqrhirkaeskkvatlltf