Overview
This record provides synonyms, if any, for the compound in the corresponding (i.e., same hetID) HETNAM record. This is to allow greater flexibility in searching for HET groups.
Record Format
COLUMNS DATA TYPE FIELD DEFINITION
----------------------------------------------------------------------
1 - 6 Record name "HETSYN"
9 - 10 Continuation continuation Allows concatenation of
multiple records.
12 - 14 LString(3) hetID Het identifier,
right-justified.
16 - 70 SList hetSynonyms List of synonyms.
Details
* This is not guaranteed to be a complete list of possible synonyms, but is uniform across the PDB. New synonyms may be added. The list can be continued onto additional HETSYN records. Even if the same hetID appears on more than one HET record, only one set of HETSYN records is included for the hetID.
Verification/Validation/Value Authority Control
For each HETSYN record in the entry, the corresponding HET, HETNAM, FORMUL, HETATM and CONECT records must appear.
Relationships to Other Record Types
If there is a HETSYN record there must be corresponding HET, HETNAM, FORMUL, HETATM, and CONECT records. LINK records may also appear.
Example
1 2 3 4 5 6 7
1234567890123456789012345678901234567890123456789012345678901234567890
HETSYN NAD NICOTINAMIDE ADENINE DINUCLEOTIDE
HETSYN COA COA
HETSYN CMP CYCLIC AMP; CYCLIC ADENOSINE MONOPHOSPHATE
HETSYN TRS TRIS BUFFER; TRISAMINE;
HETSYN 2 TRS TRIS(HYDROXYMETHYL)AMINOMETHANE; TRIMETHYLOL
HETSYN 3 TRS AMINOMETHANE