dfa checkgrad cart
SEED=-3059743 rescale_mode=2 one_letter PDBSTART timlim=2800.0 &
-CONSTR_HOMOL=8 PDBREF REFSTR checkgrad cart
+CONSTR_HOMOL=8 PDBREF REFSTR checkgrad cart delta=1.0e-4
WLONG=1.00000 WSCP=1.23315 WELEC=0.84476 WBOND=1.00000 WANG=0.62954 &
WSCLOC=0.10554 WTOR=1.34316 WTORD=1.26571 WCORRH=0.19212 WCORR5=0.00000 &
WCORR6=0.00000 WEL_LOC=0.37357 WTURN3=1.40323 WTURN4=0.64673 WTURN6=0.00000 &