[phenixbb] B iso average versus B wilson

Pavel Afonine pafonine at lbl.gov
Mon Jul 21 17:42:26 PDT 2014

Hi Emily,

- is it X-ray data set?
- are you deriving average B from a well refined model?
- what are R-factors? Overall and per resolution shell?

Use can use it as a guide, page 25:


The problem with the plot is that there is no error bars shown..

I don't think there exists a tabulated guide of acceptable differences 
between mean and Wilson B.


On 7/21/14, 5:34 PM, Emily Golden wrote:
> Dear All,
> I have a 1.12 A refined structure with and average B of 11.5 but the 
> wilson B is 6.    There are a couple of highly mobile loops and water 
> molecules in the structure that are increasing the average B.   What 
> is an acceptable difference between wilson B and average B?
> Thank you,
> Emily

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