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Home > Supported File Formats > PDB to STK


How to convert PDB (Protein Database) to STK (Satellite Tool Kit, Systems Tool Kit, MDL)?


PolyTrans|CAD+DCC performs mathematically precise CAD, DCC/Animation, GIS and BIM 3D file conversions into all key downstream 3D packages and file formats. Okino software is used and trusted throughout the world by many tens of thousands of 3D professionals in mission & production critical environments, backed by respectable personal support directly from our core development team.

     

PDB

If you are coming here looking for information about the Microsoft .pdb file format then this is the wrong place. Those .pdb files define a 'program database file' that contains debugging information for a compiled executable (EXE/DLL). PDB files are generated by Microsoft Compilers when an application program is compiled in debug mode.

Rather, this page describes the 'Protein Database' 3D file format which uses the .pdb file extension.

The Protein Databank (PDB) is an archive of experimentally determined three-dimensional structures of biological macromolecules, serving a global community of researchers, educators, and students. The archives contain atomic coordinates, bibliographic citations, primary and secondary structure information, as well as crystallographic structure factors and NMR experimental data.

The database is constantly updated as new structures are deposited by the international scientific community. As described on a PDB database WEB page, most of the three-dimensional macromolecular structure data in the Protein Data Bank were obtained by one of three methods: X-ray crystallography (over 80%), solution nuclear magnetic resonance (NMR) (about 16%) or theoretical modeling (2%).

The PDB file format is a text-based file format that is designed to convey information about the structure of molecules; namely organic compounds such as proteins. This information consists of atomic co-ordinates, element composition, chain and grouping characteristics and bonding information.

     

STK

Systems Tool Kit (formerly Satellite Tool Kit), often referred to by its initials STK, is a multi-physics software application from Analytical Graphics, Inc. (an Ansys company) that enables engineers and scientists to perform complex analyses of ground, sea, air, and space platforms, and to share results in one integrated environment. 'MDL' is the native file format of the STK software.

Okino has been a fundamental and long term 3D file conversion partner to AGI since 1998. Originally the conversions from Okino software and into STK were done by exporting LightWave .lwo files, then COLLADA .dae files as of 2008, and in now recent years glTF files.