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INTERNATIONAL TABLES for CRYSTALLOGRAPHY |
Volume G |
Definition and Exchange of Crystallographic Data |
Definition:
The value of _chem_comp.id must uniquely identify each item in the CHEM_COMP list. For protein polymer entities, this is the three-letter code for the amino acid. For nucleic acid polymer entities, this is the one-letter code for the base.Examples:
| ala |
| val |
| A |
| C |
Type: ucode
Mandatory item: yes
Category: chem_comp
Copyright © 2005 International Union of Crystallography