>3iw4B (B:) observed residues (from ATOM records)
drvkltdfnflmvlgkgsfgkvmladrkgteelyaikilkkdvviqdddvectmvekrvl
alldkppfltqlhscfqtvdrlyfvmeyvnggdlmyhiqqvgkfkepqavfyaaeisigl
fflhkrgiiyrdlkldnvmldseghikiadfgmckehmmgvttrefcgtpdyiapeiiay
qpygksvdwwaygvllyemlagqppfdgededelfqsimehnvsypkslskeavsickgl
mtkhpakrlgcgpegerdvrehaffrridweklenreiqppfkpkvfdkfftrgqpvltp
pdqlvianidqsdfegfsyvnpqfvhp