Data Item _struct.pdbx_center_of_mass_z
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General 
- Item name
- _struct.pdbx_center_of_mass_z
- Category name
- struct
- Attribute name
- pdbx_center_of_mass_z
- Required in PDB entries
- no
- Used in currrent PDB entries
- No
Item Description
This data item is the Z component of a calculation of the center of mass of polymer chains
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]+)?
- Internal data item
- Yes
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. |