The tr322 model was initially optimized in three ways
	gromacs
	repacking sidechains (except PRO and CYS) by rosetta
	gromacs + repacking sidechains (except PRO and CYS) by rosetta

The four tr322 models were evaluated with undertaker and
tr322.gromacs0.repack-nonPC.pdb was chosen for further optimization.
The model was superimposed on 2fs2A and 2fs2B to make a dimer and all
subsequent optimizations were done in the dimer context.

Refinement consisted of rounds of 
	optimization with undertaker (with slightly different cost
		functions each time)
	optimization with gromacs
	repacking of sidechains (except PRO and CYS) by rosetta

Refinement model 1 is try14-opt2, the best-scoring model with most of the
	undertaker cost functions used.  It has the smallest chain breaks.

Refinement model 2 is try9-opt2.unpack.gromacs0.repack-nonPC, the model
	that rosetta likes best of all the ones it repacked.

Refinement model 2 is try13-opt2, the model that scores best with some
	undertaker cost functions, and second best with most.  It has the
	densest local packing.

Refinement model 4 is try13-opt2.unpack.gromacs0.repack-nonPC, the model
	that rosetta likes second best of all the ones it repacked.

Refinement model 5 is try8-opt2, an earlier version of model 2.


Although many of the undertaker runs started with multiple initial
model and allowed crossover, the following history traces the main
contributions to the models.

try14-opt2 < try13-opt2.unpack.gromacs0

try13-opt2 < try12-opt2 < try11-opt2.unpack.gromacs0

try11-opt2 < try10-opt2 < try7-opt2.unpack.gromacs0 

try9-opt2 < try8-opt2.unpack.gromacs0

try8-opt2 < try7-opt2.unpack.gromacs0.repack-nonPC

try7-opt2 <  try6-opt2.unpack.gromacs0

try6-opt2 < try5-opt2 < dimer-tr322-2fs2A