>4q9zA (A:) observed residues (from ATOM records)
lkiedfelhkmlgkgsfgkvflaefkktnqffaikalkkdvvlmdddvectmvekrvlsl
awehpflthmfctfqtkenlffvmeylnggdlmyhiqschkfdlsratfyaaeiilglqf
lhskgivyrdlkldnilldkdghikiadfgmckenmlgdaktnefcgtpdyiapeillgq
kynhsvdwwsfgvllyemligqspfhgqdeeelfhsirmdnpfyprwlekeakdllvklf
vrepekrlgvrgdirqhplfreinweelerkeidppfrpkvkspfdcsnfdkeflnekpr
lsfadralinsmdqnmfrnfsfmnpgmerlish