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This database provides information on hetero components included in three-dimensional biopolymer structures deposited at the Protein Data Bank (PDB) and the Nucleic Acid Database (NDB).

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Search the PDB and NDB for Hetero Components
Hetero IDAny valid PDB hetero ID consisting of up to three alphanumeric characters, e.g. ATP.
ElementSpecify an element contained in the hetero component, e.g. Cu.
EnvironmentSearch for the occurrence of any components in the environment of hetero components. The frequency of occurrence of a particular component may be indicated in parentheses, e.g. His(2) Met(2). In this case the search gives all hetero components with exactly two histidine and two methione residues in the environment. You can also search for hetero components themselves, e.g. Cu(3). In this case you get hits where either three neighbouring Cu residues occur or where any other hetero component is surrounded by three Cu residues Note, that environment components may have unexpected names (residue names in the PDB file), e.g. C2O stands for a Cu-O-Cu linkage occurring in the PDB entries 1bt1, 1bt2, 1bt3. Hence, these entries are not found when searching for CU. Environment components have at least one atom located within a distance of 4.2 Å from any of the hetero component atoms.
Hetero Name
Use a part of the name defined in the PDB header for the hetero component, e.g. nucleo
Structure Title
Use a part of the title record of the PDB structure file containing the hetero component, e.g. plastocyanin
Hetero ID Element Environment Hetero Name Structure Title

Other PDB Heterogens Links