>4ld0A (A:) observed residues (from ATOM records)
mvvagidpgithlglgvvavegalkarllhgevvktspqepakervgriharvlevlhrf
rpeavavqeqffyrqnelaykvgwalgavlvaafeagvpvyaygpmqvkqalakeevalm
vrgilglkeaprpshladalaialthafyarmgtakpl