>4z9mA (A:) observed residues (from ATOM records)
rlfppsadypdlrkhnncmaecltpaiyaklrnkvtpngytldqciqtgvdnpghpfikt
vgmvagdeesyevfadlfdpviklrhngydprvmkhttdldaskitqgqfdehyvlssrv
rtgrsirglslppactraerrevenvaitaleglkgdlagryyklsemteqdqqrliddh
flfdkpvsplltcagmardwpdargiwhnydktfliwineedhtrvismekggnmkrvfe
rfcrglkeverliqergwefmwnerlgyiltcpsnlgtglragvhvripklskdprfski
lenlrlqkrgtggvdtaavadvydisnidrigrsevelvqividgvnylvdc