_Tertiary_struct.Tertiary_struct_element_code
| Description | Code defining the type of tertiary structure element that is being defined. |
| Details: | |
| Parent saveframe | tertiary_struct_elements |
| Data type | code |
| DB table | Tertiary_struct |
| DB column | Tertiary_struct_element_code |
| DB type | VARCHAR(15) |
| NULL allowed | no (mandatory) |