[phenixbb] B-factors vs resolution

Pavel Afonine pafonine at lbl.gov
Wed Apr 6 00:02:16 PDT 2011

Hi Yuri,

> I am refining a 1.3 A structure the maps look great and I notice the 
> main chain B factors are all around 7~12.
> I have refined the same enzyme at resolution 2.2 A and the B factors 
> here were around 25~30.

It looks all good to me.. For some statistics see page #27 here:

> Usually one will describe ordered parts of a protein vs disordered 
> parts based on B factors. 

... or occupancies (if refined or modeled alternative conformations).

> Is the higher resolution protein more ordered ...

Well, I guess most of the time yes.

> Or are the B factors values artifacts of refinement?

Not sure I understood this one... sorry.

Good luck!

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