Data Item _chem_comp_atom.model_Cartn_x
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General 
- Item name
- _chem_comp_atom.model_Cartn_x
- Category name
- chem_comp_atom
- Attribute name
- model_Cartn_x
- Required in PDB entries
- no
- Used in currrent PDB entries
- No
- Used in the Chemical Component dictionary
- Yes
Item Description
The x component of the coordinates for this atom in this
component specified as orthogonal angstroms. The choice of
reference axis frame for the coordinates is arbitrary.
The set of coordinates input for the entity here is intended to
correspond to the atomic model used to generate restraints for
structure refinement, not to atom sites in the ATOM_SITE
list.
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
Related Items 
| Related Item Name | Relation Type |
|---|---|
| _chem_comp_atom.model_Cartn_x_esd | associated_esd |
Dependent Items
Subcategories
| Subcategory Name | Subcategory Description |
|---|---|
| cartesian_coordinate | The collection of x, y, and z components of a position specified with reference to a Cartesian (orthogonal Angstrom) coordinate system. |