>1a87A (A:) observed residues (from ATOM records)
sakvgeititpdnskpgryissnpeysllaklidaesikgtevytfhtrkgqyvkvtvpd
snidkmrvdyvnwkgpkynnklvkrfvsqfllfrkeekeknekeallkaselvsgmgdkl
geylgvkyknvakevandiknfhgrnirsyneamaslnkvlanpkmkvnksdkdaivnaw
kqvnakdmankignlgkafkvadlaikvekireksiegyntgnwgpllleveswiiggvv
agvaislfgavlsflpisglavtalgvigimtisylssfidanrvsninniissvir