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 APIs that provides Structure()
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Structure is the core dataclass in EnzyHTP that represents the
structure of a biomolecule. (e.g.: an enzyme). Below are APIs that
produce `Structure() <Structure.html>`_:

Using a StructureParser
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Structure can be obtained by parsing from a file using one of the StructureParser:

- `PDBParser <PDBParser.html>`_
- `PrmtopParser <xxx>`_

Author: QZ Shao <shaoqz@icloud.com>