>>5KHR:HELIX  140 140 ALA I   50  PHE I   52  1                                   3    
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HELIX  140 140 ALA I   50  PHE I   52  1                                   3    

ATOM   3023  CA  ALA I  50     188.901 138.074 155.266  1.00500.00           C  
ATOM   3024  CA  SER I  51     185.471 136.415 154.782  1.00500.00           C  
ATOM   3025  CA  PHE I  52     184.959 138.755 151.757  1.00500.00           C