PREPI (Protein REPresentations Interactively)is a molecular graphics program which can be used to EASILY produce and interactively manipulate many different types of molecular representations (cartoons) as well as providing quantative information on secondary structural topology. The program is not just limited to proteins, but can also show cartoon representations of NUCLEIC ACIDS. In fact the program is capable of displaying “ANY” object for which cartesian coordinates are available. The program can input data from a wide range of data file formats (e.g. Broohaven PDB, Cambridge Databank, SYBL, Z-MATRIX) including its own FREE FORMAT which allows for the construction of complex objects such as Virus particles.
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