define   helix1   501-507B, 567-573B
define   helix2   510-513B, 523-526B
define   helix3   527-533B, 539-545B
define   helix4   550-554B, 562-566B
define   helixes  helix1,helix2,helix3, helix4

define loop1 514-522B
define loop2 534-538B
define loop3 545-549B
define loop4 555-561B

define loops loop1,loop2,loop3,loop4


define knot1   514B, 508B
define knot2   515B, 549B
define knot3   519B, 556B
define knot4   527B, 545B
define knot5   533B, 539B
define knot6   534B, 537B
define knot7   552B, 564B
define knot8   555B, 559B

define knots knot1,knot2,knot3,knot4,knot5,knot6,knot7,knot8

define lends 574-577B

define anticodon 535-537B





