Data Item _chem_comp.type
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General 
- Item name
- _chem_comp.type
- Category name
- chem_comp
- Attribute name
- type
- Required in PDB entries
- yes
- Used in current PDB entries
- Yes, in about 100.0 % of entries
- Used in the Chemical Component dictionary
- Yes
Item Description
Chemical components can be of two molecular types either a complete chemical
compound or a fragment of a complete chemical compound.
Item Example
L-peptide linking
Data Type 
- Data type code
- line
- Data type detail
- char item types / multi-word items ...
- Primitive data type code
- char
- Regular expression
- [][ \t_(),.;:"&<>/\{}'`~!@#$%?+=*A-Za-z0-9|^-]*
Controlled Vocabulary
| Allowed Value | Details |
|---|---|
| D-BETA-PEPTIDE, C-GAMMA LINKING | |
| D-GAMMA-PEPTIDE, C-DELTA LINKING | |
| D-PEPTIDE COOH CARBOXY TERMINUS | |
| D-PEPTIDE LINKING | |
| D-PEPTIDE NH3 AMINO TERMINUS | |
| D-SACCHARIDE | |
| D-SACCHARIDE 1,4 AND 1,4 LINKING | |
| D-SACCHARIDE 1,4 AND 1,6 LINKING | |
| DNA LINKING | |
| DNA OH 3 PRIME TERMINUS | |
| DNA OH 5 PRIME TERMINUS | |
| L-BETA-PEPTIDE, C-GAMMA LINKING | |
| L-DNA LINKING | |
| L-GAMMA-PEPTIDE, C-DELTA LINKING | |
| L-PEPTIDE COOH CARBOXY TERMINUS | |
| L-PEPTIDE LINKING | |
| L-PEPTIDE NH3 AMINO TERMINUS | |
| L-RNA LINKING | |
| L-SACCHARIDE | |
| L-SACCHARIDE 1,4 AND 1,4 LINKING | |
| L-SACCHARIDE 1,4 AND 1,6 LINKING | |
| NON-POLYMER | |
| OTHER | |
| PEPTIDE LINKING | |
| PEPTIDE-LIKE | |
| RNA LINKING | |
| RNA OH 3 PRIME TERMINUS | |
| RNA OH 5 PRIME TERMINUS | |
| SACCHARIDE |
Controlled Vocabulary at Deposition
| Allowed Value | Details |
|---|---|
| D-BETA-PEPTIDE, C-GAMMA LINKING | |
| D-GAMMA-PEPTIDE, C-DELTA LINKING | |
| D-PEPTIDE COOH CARBOXY TERMINUS | |
| D-PEPTIDE LINKING | |
| D-PEPTIDE NH3 AMINO TERMINUS | |
| D-SACCHARIDE | |
| D-SACCHARIDE 1,4 AND 1,4 LINKING | |
| D-SACCHARIDE 1,4 AND 1,6 LINKING | |
| DNA LINKING | |
| DNA OH 3 PRIME TERMINUS | |
| DNA OH 5 PRIME TERMINUS | |
| L-BETA-PEPTIDE, C-GAMMA LINKING | |
| L-DNA LINKING | |
| L-GAMMA-PEPTIDE, C-DELTA LINKING | |
| L-PEPTIDE COOH CARBOXY TERMINUS | |
| L-PEPTIDE LINKING | |
| L-PEPTIDE NH3 AMINO TERMINUS | |
| L-RNA LINKING | |
| L-SACCHARIDE | |
| L-SACCHARIDE 1,4 AND 1,4 LINKING | |
| L-SACCHARIDE 1,4 AND 1,6 LINKING | |
| NON-POLYMER | |
| OTHER | |
| PEPTIDE LINKING | |
| PEPTIDE-LIKE | |
| RNA LINKING | |
| RNA OH 3 PRIME TERMINUS | |
| RNA OH 5 PRIME TERMINUS | |
| SACCHARIDE |