>1u87A (A:) observed residues (from ATOM records)
mspilgfwkikglvqptrllleyleekyeehlyerdegdkwrnkkfelglefpnlpyyid
gdvkltqsmaiiryiadkhnmlggcpkeraeismlegavldirygvsriayskdfetlkv
dflsklpemlkmfedrlchktylngdhvthpdfmlydaldvvlymdpmcldafpklvcfk
krieaipqidkylksskyiawplqgwqat