MRC (file format)
Encyclopedia
The MRC file format is a file format for electron density
has become industry standard in Cryo-electron microscopy
where the result of the technique is a three-dimensional grid of voxel
s each with a value corresponding to density of electrons (see wave function) The MRC format is supported by almost every molecular graphics suite that supports volumetric data. The major packages include:
See UCSF website for a tour of image created from data stored in MRC formats.
Electron density
Electron density is the measure of the probability of an electron being present at a specific location.In molecules, regions of electron density are usually found around the atom, and its bonds...
has become industry standard in Cryo-electron microscopy
Cryo-electron microscopy
Cryo-electron microscopy , or electron cryomicroscopy, is a form of transmission electron microscopy where the sample is studied at cryogenic temperatures...
where the result of the technique is a three-dimensional grid of voxel
Voxel
A voxel is a volume element, representing a value on a regular grid in three dimensional space. This is analogous to a pixel, which represents 2D image data in a bitmap...
s each with a value corresponding to density of electrons (see wave function) The MRC format is supported by almost every molecular graphics suite that supports volumetric data. The major packages include:
- Visual molecular dynamicsVisual Molecular Dynamics- External links :* * *...
- UCSF ChimeraUCSF ChimeraUCSF Chimera is an extensible program for interactive visualization and analysis of molecular structures and related data, including density maps, supramolecular assemblies, sequence alignments, docking results, trajectories, and conformational ensembles. High-quality and can be created...
See UCSF website for a tour of image created from data stored in MRC formats.
See also
- CCP4 (file format)CCP4 (file format)The CCP4 file format is file generated by the Collaborative Computational Project Number 4 in 1979. The file format for electron density has become industry standard in X-ray crystallography and Cryo-electron microscopy where the result of the technique is a three-dimensional grid of voxels each...
- EZD (file format)
- Chemical file formatChemical file formatThis article discusses some common molecular file formats, including usage and converting between them.-Distinguishing formats:Chemical information is usually provided as files or streams and many formats have been created, with varying degrees of documentation. The format can be found by three...
- Protein Data Bank (file format)Protein Data Bank (file format)The Protein Data Bank file format is a textual file format describing the three dimensional structures of molecules held in the Protein Data Bank. The pdb format accordingly provides for description and annotation of protein and nucleic acid structures including atomic coordinates, observed...
- Protein Data Bank (file format)
- VoxelVoxelA voxel is a volume element, representing a value on a regular grid in three dimensional space. This is analogous to a pixel, which represents 2D image data in a bitmap...
- one way of presenting 3D densities