A small molecule crystallography text would give you the formulation
for an ideal case.
A rough guide is that a B factor of 80 is equivalent to a mean vibration
about the coordinate of 1A
But for proteins the B factor becomes the collection bin for all sorts
of other errors - unrecognised multiple conformations, , and the
restraints used make it harder to interpret.
Eleanor
Jacob Keller wrote:
Hello Crystallographers,
does anybody have a good reference dealing with interpretations of what
B-factors (anisotropic or otherwise) really signify? In other words, a
systematic addressing of all of the possible underlying
molecular/crystal/data-collection phenomena which the B-factor mathematically
models?
Thanks in advance,
Jacob
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Jacob Pearson Keller
Northwestern University
Medical Scientist Training Program
Dallos Laboratory
F. Searle 1-240
2240 Campus Drive
Evanston IL 60208
lab: 847.491.2438
cel: 773.608.9185
email: [EMAIL PROTECTED]
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