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MAP & MASK UTILITIES

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MAP & MASK FILE MANIPULATIONS

CCP4 programs used in Map & Mask file manipulation

CCP4i taskAssociated CCP4 program(s)
Create Task-Specific Maps
FFT
Fast Fourier Transform
Run FFT - Create Map
FFT
Fast Fourier Transform
Create/Edit Masks
NCSMASK
Averaging mask manipulation program
Edit/Rotate Maps & Masks
MAPMASK
Map/Mask extend program
MAPROT
Map skewing, interpolating, rotating, averaging and correlation masking
Map Averaging
MAPROT
Map skewing, interpolating, rotating, averaging and correlation masking
Map Correlation
OVERLAPMAP
Calculate correlation coefficients, real space R-factors etc. according to residue or map section, using two or three maps
SFALL
Structure factor calculation and X-ray refinement using forward and reverse FFT

Auxiliary CCP4 programs used in these tasks

CCP4MAPWISH
Custom wish interpreter required for MapSlicer
MAMA2CCP4
Convert between 'mama' and Cambridge/CCP4 map formats
MAP2FS
Convert CCP4 map to XtalView fsfour format
MAPDUMP
Print a dump of sections of a map file
MAPSIG
Print statistics on signal/noise for translation function map
MapSlicer
Section viewer for CCP4 map files
MAPTONA4
Convert binary map file to and from na4 ASCII format
OMIT
Calculate omit-maps according to Bhat procedure
PEAKMAX
Search for peaks in the electron density map
SIGMAA
Improved Fourier coefficients using calculated phases
XDLMAPMAN
Manipulation, analysis and reformatting of electron density maps (X-windows tool)

Further reading

CCP4 Program Documentation UP