Data Item _phasing_MIR_der.R_cullis_centric

General

Item name
_phasing_MIR_der.R_cullis_centric
Category name
phasing_MIR_der
Attribute name
R_cullis_centric
Required in PDB entries
no
Used in current PDB entries
Yes, in about 0.009 % of entries

Item Description

Residual factor Rcullis for centric reflections for this derivative. sum| |Fphobs +/- Fpobs| - Fhcalc | Rcullis = ---------------------------------------- sum|Fphobs - Fpobs| Fpobs = the observed structure-factor amplitude of the native Fphobs = the observed structure-factor amplitude of the derivative Fhcalc = the calculated structure-factor amplitude from the heavy-atom model sum is taken over the specified reflections Ref: Cullis, A. F., Muirhead, H., Perutz, M. F., Rossmann, M. G. & North, A. C. T. (1961). Proc. R. Soc. London Ser. A, 265, 15-38.

Data Type

Data type code
float
Data type detail
float item types are the subset of numbers that are the floating numbers.
Primitive data type code
numb
Regular expression
-?(([0-9]+)[.]?|([0-9]*[.][0-9]+))([(][0-9]+[)])?([eE][+-]?[0-9]+)?

Allowed Boundary Conditions

Minimum Value Maximum Value
0.0

+∞

Aliases

Alias Item Name Dictionary Name Dictionary Version
_phasing_MIR_der.ebi_Rcullis_centric ebi_extensions 1.0