>3sh1D (D:) observed residues (from ATOM records)
kddddklhsqanlmrlksdlfnrspmypgptkddpltvylsfslldivkadsstnevdlv
yweqqswklnslmwdpneygnitdfrtsaadiwtpditaysstrpvqvlspqnalvnssg
hvqylpaqrlsfmcdptgvdseegatcavkfgswsyggweidlktdtdqvdlssyyassk
yeilsatqtrserfyecckepypdvnlvvkfrer