// extra constraints to try to fix break.


constraint 	V155.CB	K181.CB 4 5.12 8
constraint 	A156.CB	S182.CB 4 5.12 6
constraint 	I157.CB	C183.CB 4 5.12 6
constraint 	T158.CB	S184.CB 4 5.12 6
constraint	G159.CA	A185.CA 4 5.12 6
constraint	H160.CB	F186.CB 4 5.12 7

// straightness of c-terminal strand
constraint	D264.CB	K270.CB	20 21.9 24

constraint 	I233.CB	D264.CB	4 5.12 6
constraint 	L234.CB	Y265.CB	4 5.12 6
constraint 	I235.CB	V266.CB	4 5.12 6
constraint 	H236.CB	E267.CB	4 5.12 6
constraint 	V237.CB	I268.CB	4 5.12 6
constraint 	G238.CA	K269.CA	4 5.12 6
constraint 	D239.CB	K270.CB	4 5.12 6
constraint 	S240.CB	V271.CB	4 5.12 6