Data Item _atom_site.U_iso_or_equiv_esd

General

Item name
_atom_site.U_iso_or_equiv_esd
Category name
atom_site
Attribute name
U_iso_or_equiv_esd
Required in PDB entries
no
Used in currrent PDB entries
No

Item Description

The standard uncertainty (estimated standard deviation) of _atom_site.U_iso_or_equiv.

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]+)?
Units
angstroms_squared