\begin{Verbatim}[commandchars=\\\{\}]
ID   2Fe\PYGZhy{}2S.
AC   KW\PYGZhy{}0001
DE   Protein which contains at least one 2Fe\PYGZhy{}2S iron\PYGZhy{}sulfur cluster: 2 iron
DE   atoms complexed to 2 inorganic sulfides and 4 sulfur atoms of
DE   cysteines from the protein.
SY   Fe2S2; [2Fe\PYGZhy{}2S] cluster; [Fe2S2] cluster; Fe2/S2 (inorganic) cluster;
SY   Di\PYGZhy{}mu\PYGZhy{}sulfido\PYGZhy{}diiron; 2 iron, 2 sulfur cluster binding.
GO   GO:0051537; 2 iron, 2 sulfur cluster binding
HI   Ligand: Iron; Iron\PYGZhy{}sulfur; 2Fe\PYGZhy{}2S.
HI   Ligand: Metal\PYGZhy{}binding; 2Fe\PYGZhy{}2S.
CA   Ligand.
//
ID   3D\PYGZhy{}structure.
AC   KW\PYGZhy{}0002
DE   Protein, or part of a protein, whose three\PYGZhy{}dimensional structure has
DE   been resolved experimentally (for example by X\PYGZhy{}ray crystallography or
DE   NMR spectroscopy) and whose coordinates are available in the PDB
DE   database. Can also be used for theoretical models.
HI   Technical term: 3D\PYGZhy{}structure.
CA   Technical term.
//
ID   3Fe\PYGZhy{}4S.
...
\end{Verbatim}
