Ribbons --- ONO!

	
	Conversion of O data into *.ss format.

	The associated O programs to determine real-space fit,
	to check carbonyl direction, and to check side chain
	rotamers are run and the ascii output saved.
	The output should be edited to contain 3 "title" lines,
	followed by the data for each residue in a chain.
	See the "*.com" files to do this on a VAX.
	These files are then processed to determine statistics
	and to assign a letter grade to each residue.
	The results should be pasted on to an existing *.ss file
	for color-coding by ribbons.



	Example output files from O:

		O-program	 output-file
		---------	-------------
		O_rsf		O_rsr_all.list 
		O_rsf		O_rsr_mc.list
		O_Pep_Flip	O_pep_flip.list
		O_rsc		O_chi.biglist
				(O_chi.list)

	    The file O_chi.list was produced as follows:

		awk -f reduce-chi.awk < O_chi.biglist > O_chi.list

	    These files are the first 10 residues from a protein.



	Creation of the individual property/assignment files:

		awk -f O_rsfit.awk   < O_rsr_all.list  > rsr_all.s 
		awk -f O_rsfit.awk   < O_rsr_mc.list   > rsr_mc.s 
		awk -f O_pepflip.awk < O_pep_flip.list > pep_flip.s 
		awk -f O_chi.awk     < O_chi.list      > chi.s

	   The rsr files were edited to give unique names
	   (ie, changed default 'Orsr' to 'Oall' and 'Omc').



	Creation of an *.ss file:

		paste pro-orig.ss *.s > pro-new.ss

	    The file pro-orig.ss was made with the standard ribbon
	    utilities pdb-pro-ss followed by pdb-rama-ss.
	    The new file was edited, throwing away all the statistics
	    from the title line.


	All at once:

		O-rsr-ss protein.ss O_rsr.list
		O-pep-ss protein.ss O_pep_flip.list
		O-chi-ss protein.ss O_chi.list

	    The scripts above have been placed in the ~ribbons/bin directory
	    that do the two steps above, adding the column of O information
	    to the existing *.ss file.


	Color-coding:

	    The assigned grade is 'A' thru 'F'. 
	    The file 'O.color' gives a mapping of cold thru hot.