Data Item _chemical_conn_atom.NCA
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General 
- Item name
- _chemical_conn_atom.NCA
- Category name
- chemical_conn_atom
- Attribute name
- NCA
- Required in PDB entries
- no
- Used in currrent PDB entries
- No
Item Description
The number of connected atoms excluding terminal hydrogen atoms.
Data Type 
- Data type code
- int
- Data type detail
- int item types are the subset of numbers that are the negative or positive integers.
- Primitive data type code
- numb
- Regular expression
- -?[0-9]+
Allowed Boundary Conditions
| Minimum Value | Maximum Value |
|---|---|
| 0 | +∞ |
Aliases
| Alias Item Name | Dictionary Name | Dictionary Version |
|---|---|---|
| _chemical_conn_atom_NCA | cif_core.dic | 2.0.1 |