MMDB is a macromolecular coordinate library, written by Eugene Krissinel.
It supports reading and writing two file formats, PDB and mmCIF, and provides high-level tools for working with coordinate files: orthogonal-fractional coordinate transforms, generation of symmetry mates, editing the
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molecular structure and some others.
Tarballs available at: ftp://ftp.ccp4.ac.uk/opensource/ [Less]