>>1U4L:HELIX    3   3 ARG B   21  HIS B   23  1                                   3    
RAH
Search OCA for entries with sequence similar to this one (with E=10)

HELIX 3 3 ARG B 21 HIS B 23 1 3 ATOM 645 N ARG B 21 2.904 5.385 58.423 1.00 20.64 N ATOM 646 CA ARG B 21 1.551 5.862 58.149 1.00 19.19 C ATOM 647 C ARG B 21 1.339 7.334 58.468 1.00 19.20 C ATOM 648 O ARG B 21 0.616 8.037 57.759 1.00 17.65 O ATOM 649 CB ARG B 21 0.528 5.043 58.937 1.00 17.48 C ATOM 650 CG ARG B 21 -0.903 5.563 58.817 1.00 17.86 C ATOM 651 CD ARG B 21 -1.427 5.414 57.394 1.00 19.07 C ATOM 652 NE ARG B 21 -2.777 5.955 57.222 1.00 18.62 N ATOM 653 CZ ARG B 21 -3.068 7.251 57.162 1.00 19.28 C ATOM 654 NH1 ARG B 21 -2.105 8.158 57.259 1.00 19.52 N ATOM 655 NH2 ARG B 21 -4.324 7.643 56.996 1.00 18.14 N ATOM 656 N ALA B 22 1.975 7.789 59.540 1.00 20.29 N ATOM 657 CA ALA B 22 1.849 9.163 60.010 1.00 21.33 C ATOM 658 C ALA B 22 2.185 10.259 59.014 1.00 22.55 C ATOM 659 O ALA B 22 1.669 11.364 59.124 1.00 24.06 O ATOM 660 CB ALA B 22 2.698 9.353 61.258 1.00 18.13 C ATOM 661 N HIS B 23 3.042 9.976 58.045 1.00 23.23 N ATOM 662 CA HIS B 23 3.423 11.025 57.111 1.00 25.88 C ATOM 663 C HIS B 23 2.856 10.921 55.700 1.00 24.37 C ATOM 664 O HIS B 23 3.355 11.558 54.774 1.00 24.63 O ATOM 665 CB HIS B 23 4.944 11.125 57.086 1.00 28.77 C ATOM 666 CG HIS B 23 5.535 11.414 58.430 1.00 31.74 C ATOM 667 ND1 HIS B 23 5.294 12.590 59.108 1.00 35.03 N ATOM 668 CD2 HIS B 23 6.310 10.662 59.246 1.00 32.75 C ATOM 669 CE1 HIS B 23 5.892 12.549 60.285 1.00 35.16 C ATOM 670 NE2 HIS B 23 6.515 11.389 60.394 1.00 35.28 N