Measure Structure Quality

R factor = S ||Fo|-|Fc|| / S |Fo| < 0.25 good > 0.4 crude

Correlation Coefficient > 0.7

RMSD (root mean square deviation) = sqrt[S (Xi1 - Xi2)2 ]

compare models 1 & 2 i = 1 to n (#atoms)

canonical peptide geometry

Previous slide

Next slide

Back to first slide

View graphic version