Data Item _refine.pdbx_ls_sigma_Fsqd

General

Item name
_refine.pdbx_ls_sigma_Fsqd
Category name
refine
Attribute name
pdbx_ls_sigma_Fsqd
Required in PDB entries
no
Used in current PDB entries
Yes, in about 0.001 % of entries

Item Description

Data cutoff (SIGMA(F2))

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]+)?