// hairpin between E1 and E2
constraint V38.N T51.O   2.3 2.7 3.2
constraint V38.O T51.N   2.3 2.7 3.2

constraint E40.N K49.O   2.3 2.7 3.2
constraint E40.O K49.N   2.3 2.7 3.2

constraint N42.N T47.O   2.3 2.7 3.2
constraint N42.O T47.N   2.3 2.7 3.2


//hairpin between E4 and E5
constraint Q124.O R131.N  2.3 2.7 3.2
constraint Q124.N R131.O  2.3 2.7 3.2
constraint Q126.N Q129.O  2.3 2.7 3.2
constraint Q126.O Q129.N  2.3 2.7 3.2
constraint T133.N Q122.O  2.3 2.7 3.2
constraint T133.O Q122.N  2.3 2.7 3.2



// E3 and E4 in paralllel
constraint K94.CB V121.CB     4 5.12 9 
constraint E95.CB Q122.CB     4 5.12 9
constraint I96.CB T123.CB     4 5.12 9
constraint K97.CB Q124.CB     4 5.12 9
constraint L98.CB I125.CB     4 5.12 9

// E2 and E5 anti-parallel

constraint T47.CB T133.CB     4 5.12 9
constraint I48.CB V132.CB     4 5.12 9
constraint K49.CB R131.CB     4 5.12 9
constraint I50.CB V130.CB     4 5.12 9


// E6 parallel to E5 and anti-parallel to E2
constraint F156.CB V130.CB    4 5.12 9
constraint Q157.CB R131.CB    4 5.12 9
constraint F158.CB V132.CB    4 5.12 9
constraint N159.CB T133.CB    4 5.12 9
constraint N160.CB G134.CB    4 5.12 9

constraint F156.CB I50.CB    4 5.12 9
constraint Q157.CB K49.CB    4 5.12 9
constraint F158.CB I48.CB    4 5.12 9
constraint N159.CB T47.CB    4 5.12 9
constraint N160.CB E46.CB    4 5.12 9