Index

Macromolecular dictionary (mmCIF) version 2.0.09

_chem_comp.one_letter_code

Definition:

   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 '+' character to indicate
   that the component is a modification of a standard
   component.

Type: uchar1

Mandatory item: no

Category: chem_comp