Nautilus
Kevin Cowtan, University of York, September 2011. Last updated September 2011.
| Colophon | Nautilus (from Greek ναυτίλος, 'sailor') is the common name of marine creatures of cephalopod family Nautilidae. (Wikipedia) |
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Information:
'Nautilus' is a program for automatic model building of nucleotide structures in electron density maps. It will trace a map with no model, extend an existing model, or add nucleotide chains to an existing non-nucleotide model.
The latest version of the software is available through the CCP4 update system.
How to run Nautilus
Copy the file 'nautilus_lib.pdb' to your current working directory, or alternatively specify the location of this file with the keyword '-pdbin-ref'.
Modify the following examples to match your data.
After parrot:
cnautilus -mtzin my.mtz -colin-fc "/*/*/parrot"
After dm:
cnautilus -mtzin my.mtz -colin-fo FP,SIGFP -colin-hl HLADM,HLBDM,HLCDM,HLDDM
After refmac:
cnautilus -mtzin my.mtz -colin-fc FWT,PHWT
or
cnautilus -mtzin my.mtz -colin-fc FWT,PHWT -pdbin my.pdb
If you have a complex, build the rest of the structure first as far as possible, and provide this as input to nautilus using -pdbin.
See the documentation linked above for a full list of keywords.
Latest News
- 11/10/26:
- v0.2 Fixed corruption of existing model residue types, fixed most clashes, much faster.
- 11/09/20:
- v0.1 Initial release.