0.017544 0.010129 0.000000 0.000000 0.020258 0.000000 0.000000 0.000000 0.012284 0.00000 0.00000 0.00000 Liu, Y. Hart, P.J. Schlunegger, M.P. Eisenberg, D.S. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic 6 90.00 90.00 120.00 57.000 57.000 81.410 C3 H7 N O2 89.093 y ALANINE L-peptide linking C6 H15 N4 O2 1 175.209 y ARGININE L-peptide linking C4 H8 N2 O3 132.118 y ASPARAGINE L-peptide linking C4 H7 N O4 133.103 y ASPARTIC ACID L-peptide linking Cl -1 35.453 CHLORIDE ION non-polymer C3 H7 N O2 S 121.158 y CYSTEINE L-peptide linking C5 H10 N2 O3 146.144 y GLUTAMINE L-peptide linking C5 H9 N O4 147.129 y GLUTAMIC ACID L-peptide linking C2 H5 N O2 75.067 y GLYCINE peptide linking C6 H10 N3 O2 1 156.162 y HISTIDINE L-peptide linking H2 O 18.015 WATER non-polymer C6 H13 N O2 131.173 y ISOLEUCINE L-peptide linking C6 H13 N O2 131.173 y LEUCINE L-peptide linking C6 H15 N2 O2 1 147.195 y LYSINE L-peptide linking C5 H11 N O2 S 149.211 y METHIONINE L-peptide linking C9 H11 N O2 165.189 y PHENYLALANINE L-peptide linking C5 H9 N O2 115.130 y PROLINE L-peptide linking C3 H7 N O3 105.093 y SERINE L-peptide linking O4 S -2 96.063 SULFATE ION non-polymer C4 H9 N O3 119.119 y THREONINE L-peptide linking C9 H11 N O3 181.189 y TYROSINE L-peptide linking C5 H11 N O2 117.146 y VALINE L-peptide linking US Proc.Natl.Acad.Sci.USA PNASA6 0040 0027-8424 95 3437 3442 10.1073/pnas.95.7.3437 9520384 The crystal structure of a 3D domain-swapped dimer of RNase A at a 2.1-A resolution. 1998 DK Acta Crystallogr.,Sect.D ABCRE6 0766 0907-4449 49 389 Bovine Seminal Ribonuclease: Structure at 1.9 A Resolution 1993 US J.Biol.Chem. JBCHA3 0071 0021-9258 267 22230 Crystal Structure Disposition of Thymidylic Acid Tetramer in Complex with Ribonuclease A 1992 10.2210/pdb1a2w/pdb pdb_00001a2w 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 293 1 MIRRORS IMAGE PLATE 1997-10 RIGAKU DOUBLE CRYSTAL SI(111) M x-ray 1 1.5418 1.0 1.5418 ROTATING ANODE RIGAKU RUH2R SWAPPED HELICAL DOMAIN CONTAINS RESIDUES 1-15, HINGE LOOPS CONTAIN RESIDUES 16-22, MAJOR DOMAIN CONTAINS RESIDUES 23-124 13708.326 RIBONUCLEASE A 3.1.27.5 SWAPPED HELICAL DOMAIN 2 nat polymer 35.453 CHLORIDE ION 2 syn non-polymer 96.063 SULFATE ION 1 syn non-polymer 18.015 water 92 nat water no no KETAAAKFERQHMDSSTSAASSSNYCNQMMKSRNLTKDRCKPVNTFVHESLADVQAVCSQKNVACKNGQTNCYQSYSTMS ITDCRETGSSKYPNCAYKTTQANKHIIVACEGNPYVPVHFDASV KETAAAKFERQHMDSSTSAASSSNYCNQMMKSRNLTKDRCKPVNTFVHESLADVQAVCSQKNVACKNGQTNCYQSYSTMS ITDCRETGSSKYPNCAYKTTQANKHIIVACEGNPYVPVHFDASV A,B polypeptide(L) n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n cattle Bos sample 9913 PANCREAS Bos taurus 1 2.7 61. 7.5 100 MM PHOSPHATE BUFFER (PH 7.5) 1.6 M AMMONIUM SULFATE 0.6 M NACL 2% PEG400 database_2 pdbx_initial_refinement_model struct_site repository Initial release Version format compliance Version format compliance Database references Derived calculations Refinement description 1 0 1998-04-29 1 1 2008-03-24 1 2 2011-07-13 1 3 2023-08-02 _database_2.pdbx_DOI _database_2.pdbx_database_accession _struct_site.pdbx_auth_asym_id _struct_site.pdbx_auth_comp_id _struct_site.pdbx_auth_seq_id Y BNL 1998-01-12 REL REL CL CHLORIDE ION SO4 SULFATE ION HOH water 1RTB PDB ENTRY 1RTB PDB experimental model CL 501 2 CL CL 501 A CL 502 2 CL CL 502 B SO4 601 3 SO4 SO4 601 B HOH 401 4 HOH HOH 401 A HOH 403 4 HOH HOH 403 A HOH 405 4 HOH HOH 405 A HOH 406 4 HOH HOH 406 A HOH 407 4 HOH HOH 407 A HOH 410 4 HOH HOH 410 A HOH 411 4 HOH HOH 411 A HOH 415 4 HOH HOH 415 A HOH 417 4 HOH HOH 417 A HOH 420 4 HOH HOH 420 A HOH 421 4 HOH HOH 421 A HOH 422 4 HOH HOH 422 A HOH 423 4 HOH HOH 423 A HOH 424 4 HOH HOH 424 A HOH 427 4 HOH HOH 427 A HOH 430 4 HOH HOH 430 A HOH 439 4 HOH HOH 439 A HOH 441 4 HOH HOH 441 A HOH 442 4 HOH HOH 442 A HOH 443 4 HOH HOH 443 A HOH 444 4 HOH HOH 444 A HOH 445 4 HOH HOH 445 A HOH 449 4 HOH HOH 449 A HOH 461 4 HOH HOH 461 A HOH 464 4 HOH HOH 464 A HOH 465 4 HOH HOH 465 A HOH 466 4 HOH HOH 466 A HOH 467 4 HOH HOH 467 A HOH 468 4 HOH HOH 468 A HOH 471 4 HOH HOH 471 A HOH 472 4 HOH HOH 472 A HOH 473 4 HOH HOH 473 A HOH 474 4 HOH HOH 474 A HOH 477 4 HOH HOH 477 A HOH 479 4 HOH HOH 479 A HOH 480 4 HOH HOH 480 A HOH 485 4 HOH HOH 485 A HOH 486 4 HOH HOH 486 A HOH 487 4 HOH HOH 487 A HOH 490 4 HOH HOH 490 A HOH 493 4 HOH HOH 493 A HOH 402 4 HOH HOH 402 B HOH 404 4 HOH HOH 404 B HOH 408 4 HOH HOH 408 B HOH 409 4 HOH HOH 409 B HOH 412 4 HOH HOH 412 B HOH 413 4 HOH HOH 413 B HOH 414 4 HOH HOH 414 B HOH 416 4 HOH HOH 416 B HOH 418 4 HOH HOH 418 B HOH 419 4 HOH HOH 419 B HOH 425 4 HOH HOH 425 B HOH 426 4 HOH HOH 426 B HOH 428 4 HOH HOH 428 B HOH 429 4 HOH HOH 429 B HOH 431 4 HOH HOH 431 B HOH 432 4 HOH HOH 432 B HOH 433 4 HOH HOH 433 B HOH 434 4 HOH HOH 434 B HOH 435 4 HOH HOH 435 B HOH 436 4 HOH HOH 436 B HOH 437 4 HOH HOH 437 B HOH 438 4 HOH HOH 438 B HOH 440 4 HOH HOH 440 B HOH 446 4 HOH HOH 446 B HOH 447 4 HOH HOH 447 B HOH 448 4 HOH HOH 448 B HOH 450 4 HOH HOH 450 B HOH 451 4 HOH HOH 451 B HOH 452 4 HOH HOH 452 B HOH 453 4 HOH HOH 453 B HOH 454 4 HOH HOH 454 B HOH 455 4 HOH HOH 455 B HOH 456 4 HOH HOH 456 B HOH 457 4 HOH HOH 457 B HOH 458 4 HOH HOH 458 B HOH 459 4 HOH HOH 459 B HOH 460 4 HOH HOH 460 B HOH 462 4 HOH HOH 462 B HOH 463 4 HOH HOH 463 B HOH 469 4 HOH HOH 469 B HOH 470 4 HOH HOH 470 B HOH 476 4 HOH HOH 476 B HOH 478 4 HOH HOH 478 B HOH 481 4 HOH HOH 481 B HOH 482 4 HOH HOH 482 B HOH 483 4 HOH HOH 483 B HOH 488 4 HOH HOH 488 B HOH 489 4 HOH HOH 489 B HOH 491 4 HOH HOH 491 B HOH 492 4 HOH HOH 492 B HOH 494 4 HOH HOH 494 B LYS 1 n 1 LYS 1 A GLU 2 n 2 GLU 2 A THR 3 n 3 THR 3 A ALA 4 n 4 ALA 4 A ALA 5 n 5 ALA 5 A ALA 6 n 6 ALA 6 A LYS 7 n 7 LYS 7 A PHE 8 n 8 PHE 8 A GLU 9 n 9 GLU 9 A ARG 10 n 10 ARG 10 A GLN 11 n 11 GLN 11 A HIS 12 n 12 HIS 12 A MET 13 n 13 MET 13 A ASP 14 n 14 ASP 14 A SER 15 n 15 SER 15 A SER 16 n 16 SER 16 A THR 17 n 17 THR 17 A SER 18 n 18 SER 18 A ALA 19 n 19 ALA 19 A ALA 20 n 20 ALA 20 A SER 21 n 21 SER 21 A SER 22 n 22 SER 22 A SER 23 n 23 SER 23 A ASN 24 n 24 ASN 24 A TYR 25 n 25 TYR 25 A CYS 26 n 26 CYS 26 A ASN 27 n 27 ASN 27 A GLN 28 n 28 GLN 28 A MET 29 n 29 MET 29 A MET 30 n 30 MET 30 A LYS 31 n 31 LYS 31 A SER 32 n 32 SER 32 A ARG 33 n 33 ARG 33 A ASN 34 n 34 ASN 34 A LEU 35 n 35 LEU 35 A THR 36 n 36 THR 36 A LYS 37 n 37 LYS 37 A ASP 38 n 38 ASP 38 A ARG 39 n 39 ARG 39 A CYS 40 n 40 CYS 40 A LYS 41 n 41 LYS 41 A PRO 42 n 42 PRO 42 A VAL 43 n 43 VAL 43 A ASN 44 n 44 ASN 44 A THR 45 n 45 THR 45 A PHE 46 n 46 PHE 46 A VAL 47 n 47 VAL 47 A HIS 48 n 48 HIS 48 A GLU 49 n 49 GLU 49 A SER 50 n 50 SER 50 A LEU 51 n 51 LEU 51 A ALA 52 n 52 ALA 52 A ASP 53 n 53 ASP 53 A VAL 54 n 54 VAL 54 A GLN 55 n 55 GLN 55 A ALA 56 n 56 ALA 56 A VAL 57 n 57 VAL 57 A CYS 58 n 58 CYS 58 A SER 59 n 59 SER 59 A GLN 60 n 60 GLN 60 A LYS 61 n 61 LYS 61 A ASN 62 n 62 ASN 62 A VAL 63 n 63 VAL 63 A ALA 64 n 64 ALA 64 A CYS 65 n 65 CYS 65 A LYS 66 n 66 LYS 66 A ASN 67 n 67 ASN 67 A GLY 68 n 68 GLY 68 A GLN 69 n 69 GLN 69 A THR 70 n 70 THR 70 A ASN 71 n 71 ASN 71 A CYS 72 n 72 CYS 72 A TYR 73 n 73 TYR 73 A GLN 74 n 74 GLN 74 A SER 75 n 75 SER 75 A TYR 76 n 76 TYR 76 A SER 77 n 77 SER 77 A THR 78 n 78 THR 78 A MET 79 n 79 MET 79 A SER 80 n 80 SER 80 A ILE 81 n 81 ILE 81 A THR 82 n 82 THR 82 A ASP 83 n 83 ASP 83 A CYS 84 n 84 CYS 84 A ARG 85 n 85 ARG 85 A GLU 86 n 86 GLU 86 A THR 87 n 87 THR 87 A GLY 88 n 88 GLY 88 A SER 89 n 89 SER 89 A SER 90 n 90 SER 90 A LYS 91 n 91 LYS 91 A TYR 92 n 92 TYR 92 A PRO 93 n 93 PRO 93 A ASN 94 n 94 ASN 94 A CYS 95 n 95 CYS 95 A ALA 96 n 96 ALA 96 A TYR 97 n 97 TYR 97 A LYS 98 n 98 LYS 98 A THR 99 n 99 THR 99 A THR 100 n 100 THR 100 A GLN 101 n 101 GLN 101 A ALA 102 n 102 ALA 102 A ASN 103 n 103 ASN 103 A LYS 104 n 104 LYS 104 A HIS 105 n 105 HIS 105 A ILE 106 n 106 ILE 106 A ILE 107 n 107 ILE 107 A VAL 108 n 108 VAL 108 A ALA 109 n 109 ALA 109 A CYS 110 n 110 CYS 110 A GLU 111 n 111 GLU 111 A GLY 112 n 112 GLY 112 A ASN 113 n 113 ASN 113 A PRO 114 n 114 PRO 114 A TYR 115 n 115 TYR 115 A VAL 116 n 116 VAL 116 A PRO 117 n 117 PRO 117 A VAL 118 n 118 VAL 118 A HIS 119 n 119 HIS 119 A PHE 120 n 120 PHE 120 A ASP 121 n 121 ASP 121 A ALA 122 n 122 ALA 122 A SER 123 n 123 SER 123 A VAL 124 n 124 VAL 124 A LYS 1 n 1 LYS 1 B GLU 2 n 2 GLU 2 B THR 3 n 3 THR 3 B ALA 4 n 4 ALA 4 B ALA 5 n 5 ALA 5 B ALA 6 n 6 ALA 6 B LYS 7 n 7 LYS 7 B PHE 8 n 8 PHE 8 B GLU 9 n 9 GLU 9 B ARG 10 n 10 ARG 10 B GLN 11 n 11 GLN 11 B HIS 12 n 12 HIS 12 B MET 13 n 13 MET 13 B ASP 14 n 14 ASP 14 B SER 15 n 15 SER 15 B SER 16 n 16 SER 16 B THR 17 n 17 THR 17 B SER 18 n 18 SER 18 B ALA 19 n 19 ALA 19 B ALA 20 n 20 ALA 20 B SER 21 n 21 SER 21 B SER 22 n 22 SER 22 B SER 23 n 23 SER 23 B ASN 24 n 24 ASN 24 B TYR 25 n 25 TYR 25 B CYS 26 n 26 CYS 26 B ASN 27 n 27 ASN 27 B GLN 28 n 28 GLN 28 B MET 29 n 29 MET 29 B MET 30 n 30 MET 30 B LYS 31 n 31 LYS 31 B SER 32 n 32 SER 32 B ARG 33 n 33 ARG 33 B ASN 34 n 34 ASN 34 B LEU 35 n 35 LEU 35 B THR 36 n 36 THR 36 B LYS 37 n 37 LYS 37 B ASP 38 n 38 ASP 38 B ARG 39 n 39 ARG 39 B CYS 40 n 40 CYS 40 B LYS 41 n 41 LYS 41 B PRO 42 n 42 PRO 42 B VAL 43 n 43 VAL 43 B ASN 44 n 44 ASN 44 B THR 45 n 45 THR 45 B PHE 46 n 46 PHE 46 B VAL 47 n 47 VAL 47 B HIS 48 n 48 HIS 48 B GLU 49 n 49 GLU 49 B SER 50 n 50 SER 50 B LEU 51 n 51 LEU 51 B ALA 52 n 52 ALA 52 B ASP 53 n 53 ASP 53 B VAL 54 n 54 VAL 54 B GLN 55 n 55 GLN 55 B ALA 56 n 56 ALA 56 B VAL 57 n 57 VAL 57 B CYS 58 n 58 CYS 58 B SER 59 n 59 SER 59 B GLN 60 n 60 GLN 60 B LYS 61 n 61 LYS 61 B ASN 62 n 62 ASN 62 B VAL 63 n 63 VAL 63 B ALA 64 n 64 ALA 64 B CYS 65 n 65 CYS 65 B LYS 66 n 66 LYS 66 B ASN 67 n 67 ASN 67 B GLY 68 n 68 GLY 68 B GLN 69 n 69 GLN 69 B THR 70 n 70 THR 70 B ASN 71 n 71 ASN 71 B CYS 72 n 72 CYS 72 B TYR 73 n 73 TYR 73 B GLN 74 n 74 GLN 74 B SER 75 n 75 SER 75 B TYR 76 n 76 TYR 76 B SER 77 n 77 SER 77 B THR 78 n 78 THR 78 B MET 79 n 79 MET 79 B SER 80 n 80 SER 80 B ILE 81 n 81 ILE 81 B THR 82 n 82 THR 82 B ASP 83 n 83 ASP 83 B CYS 84 n 84 CYS 84 B ARG 85 n 85 ARG 85 B GLU 86 n 86 GLU 86 B THR 87 n 87 THR 87 B GLY 88 n 88 GLY 88 B SER 89 n 89 SER 89 B SER 90 n 90 SER 90 B LYS 91 n 91 LYS 91 B TYR 92 n 92 TYR 92 B PRO 93 n 93 PRO 93 B ASN 94 n 94 ASN 94 B CYS 95 n 95 CYS 95 B ALA 96 n 96 ALA 96 B TYR 97 n 97 TYR 97 B LYS 98 n 98 LYS 98 B THR 99 n 99 THR 99 B THR 100 n 100 THR 100 B GLN 101 n 101 GLN 101 B ALA 102 n 102 ALA 102 B ASN 103 n 103 ASN 103 B LYS 104 n 104 LYS 104 B HIS 105 n 105 HIS 105 B ILE 106 n 106 ILE 106 B ILE 107 n 107 ILE 107 B VAL 108 n 108 VAL 108 B ALA 109 n 109 ALA 109 B CYS 110 n 110 CYS 110 B GLU 111 n 111 GLU 111 B GLY 112 n 112 GLY 112 B ASN 113 n 113 ASN 113 B PRO 114 n 114 PRO 114 B TYR 115 n 115 TYR 115 B VAL 116 n 116 VAL 116 B PRO 117 n 117 PRO 117 B VAL 118 n 118 VAL 118 B HIS 119 n 119 HIS 119 B PHE 120 n 120 PHE 120 B ASP 121 n 121 ASP 121 B ALA 122 n 122 ALA 122 B SER 123 n 123 SER 123 B VAL 124 n 124 VAL 124 B author_and_software_defined_assembly PISA 2 dimeric 4470 -49 12630 1.0000000000 0.0000000000 0.0000000000 0.0000000000 1.0000000000 0.0000000000 0.0000000000 0.0000000000 1.0000000000 1_555 x,y,z identity operation 0.0000000000 0.0000000000 0.0000000000 A O ASN 44 A O ASN 44 A N CYS 84 A N CYS 84 A O MET 79 A O MET 79 A N LYS 104 A N LYS 104 A O LYS 61 A O LYS 61 A N GLN 74 A N GLN 74 A O TYR 73 A O TYR 73 A N VAL 108 A N VAL 108 A O HIS 105 A O HIS 105 A N VAL 124 A N VAL 124 B O ASN 44 B O ASN 44 B N CYS 84 B N CYS 84 B O MET 79 B O MET 79 B N LYS 104 B N LYS 104 B O LYS 61 B O LYS 61 B N GLN 74 B N GLN 74 B O TYR 73 B O TYR 73 B N VAL 108 B N VAL 108 B O ILE 107 B O ILE 107 B N ALA 122 B N ALA 122 1 A A CL O CL HOH 501 444 1.96 1 B A CL O CL HOH 502 430 1.97 1_555 2_654 1 A GLN 60 -119.23 -146.38 1 A LYS 61 -56.16 105.01 1 A ASN 71 -95.24 30.79 1 B ASP 14 -156.91 81.37 1 B LYS 37 -50.99 -75.04 1 B GLN 60 -112.88 -130.47 PARAM19.SOL TOPH19.SOL PARHCSDX.PRO TOPH19.PEP PARAM.SO4 TOPHCSDX.PRO 20.1 0.256 0.006 0.192 0.192 2.10 10.00 1598 16471 9.7 96.2 RANDOM 100000.00 0.1 1 RESTRAINED THROUGHOUT 0.0 MOLECULAR REPLACEMENT PDB ENTRY 1RTB 0.39 0.28 10.0 2.10 10.00 93 1998 3 0 1902 0.01 1.56 25.8 1.38 0.69 1.50 1.22 2.00 0.94 2.00 1.55 2.50 0.267 0.019 0.253 2.19 197 1776 8 9.16 91.8 25.5 2.1 40.0 1A2W 16601 0. 0.097 1 8. 1.8 96. 2.10 2.18 2. 0.263 1.7 92. data reduction DENZO data scaling SCALEPACK model building X-PLOR 3.1 refinement X-PLOR 3.1 phasing X-PLOR 3.1 CRYSTAL STRUCTURE OF A 3D DOMAIN-SWAPPED DIMER OF BOVINE PANCREATIC RIBONUCLEASE A 1 N N 1 N N 2 N N 2 N N 3 N N 4 N N 4 N N A ALA 4 A ALA 4 HELX_P A HIS 12 A HIS 12 1 1 9 A TYR 25 A TYR 25 HELX_P A SER 32 A SER 32 1 2 8 A LEU 51 A LEU 51 HELX_P A SER 59 A SER 59 1 3 9 B ALA 4 B ALA 4 HELX_P B HIS 12 B HIS 12 1 4 9 B THR 17 B THR 17 HELX_P B SER 32 B SER 32 1 5 16 B LEU 51 B LEU 51 HELX_P B SER 59 B SER 59 1 6 9 disulf 2.028 A CYS 26 A SG CYS 26 1_555 A CYS 84 A SG CYS 84 1_555 disulf 2.024 A CYS 40 A SG CYS 40 1_555 A CYS 95 A SG CYS 95 1_555 disulf 2.029 A CYS 58 A SG CYS 58 1_555 A CYS 110 A SG CYS 110 1_555 disulf 2.029 A CYS 65 A SG CYS 65 1_555 A CYS 72 A SG CYS 72 1_555 disulf 2.031 B CYS 26 B SG CYS 26 1_555 B CYS 84 B SG CYS 84 1_555 disulf 2.028 B CYS 40 B SG CYS 40 1_555 B CYS 95 B SG CYS 95 1_555 disulf 2.027 B CYS 58 B SG CYS 58 1_555 B CYS 110 B SG CYS 110 1_555 disulf 2.026 B CYS 65 B SG CYS 65 1_555 B CYS 72 B SG CYS 72 1_555 ENDONUCLEASE ENDONUCLEASE, RIBONUCLEASE, DOMAIN SWAPPING, HYDROLASE, PROTEIN-PROTEIN INTERACTION A TYR 92 A TYR 92 1 A PRO 93 A PRO 93 0.16 A ASN 113 A ASN 113 1 A PRO 114 A PRO 114 0.00 B TYR 92 B TYR 92 1 B PRO 93 B PRO 93 0.16 B ASN 113 B ASN 113 1 B PRO 114 B PRO 114 0.14 RNAS1_BOVIN UNP 1 1 P61823 MALKSLVLLSLLVLVLLLVRVQPSLGKETAAAKFERQHMDSSTSAASSSNYCNQMMKSRNLTKDRCKPVNTFVHESLADV QAVCSQKNVACKNGQTNCYQSYSTMSITDCRETGSSKYPNCAYKTTQANKHIIVACEGNPYVPVHFDASV 27 150 1A2W 1 124 P61823 A 1 1 124 27 150 1A2W 1 124 P61823 B 1 1 124 3 4 3 4 anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel A VAL 43 A VAL 43 A VAL 47 A VAL 47 A MET 79 A MET 79 A GLU 86 A GLU 86 A TYR 97 A TYR 97 A LYS 104 A LYS 104 A LYS 61 A LYS 61 A VAL 63 A VAL 63 A CYS 72 A CYS 72 A GLN 74 A GLN 74 A HIS 105 A HIS 105 A ALA 109 A ALA 109 A HIS 119 A HIS 119 A VAL 124 A VAL 124 B VAL 43 B VAL 43 B VAL 47 B VAL 47 B MET 79 B MET 79 B GLU 86 B GLU 86 B TYR 97 B TYR 97 B LYS 104 B LYS 104 B LYS 61 B LYS 61 B VAL 63 B VAL 63 B CYS 72 B CYS 72 B GLN 74 B GLN 74 B ILE 106 B ILE 106 B ALA 109 B ALA 109 B HIS 119 B HIS 119 B SER 123 B SER 123 THE ACTIVE SITE CONTAINS RESIDUES FROM DIFFERENT SUBUNITS. Unknown 3 BINDING SITE FOR RESIDUE CL A 501 A CL 501 Software 3 BINDING SITE FOR RESIDUE CL B 502 B CL 502 Software 3 BINDING SITE FOR RESIDUE SO4 B 601 B SO4 601 Software 9 B HIS 12 B HIS 12 3 1_555 A LYS 41 A LYS 41 3 1_555 A HIS 119 A HIS 119 3 1_555 A HIS 119 A HIS 119 3 1_555 A HOH 444 F HOH 3 1_555 B HIS 12 B HIS 12 3 1_555 A ARG 33 A ARG 33 3 2_654 A HOH 430 F HOH 3 2_654 B ARG 39 B ARG 39 3 1_555 A GLN 11 A GLN 11 9 1_555 A HIS 12 A HIS 12 9 1_555 A HOH 403 F HOH 9 1_555 A HOH 490 F HOH 9 2_654 B LYS 41 B LYS 41 9 1_555 B HIS 119 B HIS 119 9 1_555 B PHE 120 B PHE 120 9 1_555 B HOH 476 G HOH 9 1_555 B HOH 481 G HOH 9 1_555 145 P 32