_Chem_comp.One_letter_code
| Description | For standard polymer components the one-letter code for the component. If there is not a standard one-letter code for this component or if this is a non-polymer component the one-letter code should be given as 'X'. This code may be preceded by a '+' ch |
| Details: | |
| Parent saveframe | chem_comp |
| Data type | uchar1 |
| DB table | Chem_comp |
| DB column | One_letter_code |
| DB type | CHAR(1) |
| NULL allowed | yes |