>4x0tB (B:) observed residues (from ATOM records)
tllinqpqyawlkelglreenegvyngswggrgevittycpannepiarvrqasvadyee
tvkkareawkiwadipapkrgeivrqigdalrekiqvlgslvslemgkilvegvgevqey
vdicdyavglsrmiggpilpsersghalieqwnpvglvgiitafnfpvavygwnnaiami
cgnvclwkgapttslisvavtkiiakvlednklpgaicsltcggadigtamakdervnll
sftgstqvgkqvglmvqerfgrsllelggnnaiiafedadlslvvpsalfaavgtagqrc
ttarrlfihesihdevvnrlkkayaqirvgnpwdpnvlygplhtkqavsmflgaveeakk
eggtvvyggkvmdrpgnyveptivtglghdasiahtetfapilyvfkfkneeevfawnne
vkqglsssiftkdlgrifrwlgpkgsdcgivnvniptsgaeiggafggekhtgggresgs
dawkqymrrstctinyskdlplaqgikfq