>4hkxB (B:) observed residues (from ATOM records)
qsaltqppsvsvapgqtatitcggnnigrkrvdwfqqkpgqapvlvvyerfsdsnsgtta
tltisrveagdeadyycqvwdsdsdhvvfgggtkltvlgqpkaapsvtlfppsseelqan
katlvclisdfypgavtvawkadsspvkagvetttpskqsnnkyaassylsltpeqwksh
rsyscqvthegstvektvapt