>4rlhB (B:) observed residues (from ATOM records)
mgfldgkrilltgllsnrsiaygiakackregaelaftyvgdrfkdritefaaefgselv
fpcdvaddaqidalfaslkthwdsldglvhsigfapreaiagdfldgltrenfriahdis
aysfpalakaalpmlsddaslltlsylgaeraipnyntmglakaaleasvrylavslgak
gvrvnaisagpiktlaasgiksfgkildfvesnsplkrnvtieqvgnagafllsdlasgv
taevmhvdsgfnavvggm