define helix1 17-22:b
define helix2 23-25:b
define helix3 32-38:b
define helix4 47-54:b
define helix5 81-68:b
define helix6 73-81:b
define helix7 100-115:b
define helix8 127-129:b
define helix9 132-139:b
define helix10 147-150:b
define helix11 152-165:b
define helix12 218-222:b
define helix13 232-250:b
define helix14 251-254:b
define helix15 259-264:b
define helix16 266-281:b
define helix17 281-290:b
define helix18 291-297:b
define strand1 170-172:b
define strand2 188-190:b
echo helix1 to helix18 are alpha-helices of chain B
echo strand1 to strand2 are beta-strends of chain B

