1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 Wong, K.B. Fersht, A.R. Freund, S.M.V. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic 1 90.00 90.00 90.00 1.000 1.000 1.000 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 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 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 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 C4 H9 N O3 119.119 y THREONINE L-peptide linking C11 H12 N2 O2 204.225 y TRYPTOPHAN 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 UK J.Mol.Biol. JMOBAK 0070 0022-2836 268 494 511 10.1006/jmbi.1997.0989 9159486 NMR 15N relaxation and structural studies reveal slow conformational exchange in barstar C40/82A. 1997 NE Trends Biochem.Sci. TBSCDB 0946 0968-0004 14 450 Barnase and Barstar: Two Small Proteins to Fold and Fit Together 1989 10.2210/pdb1ab7/pdb pdb_00001ab7 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 10157.412 BARSTAR C40A, C82A 1 man polymer no no KKAVINGEQIRSISDLHQTLKKELALPEYYGENLDALWDALTGWVEYPLVLEWRQFEQSKQLTENGAESVLQVFREAKAE GADITIILS KKAVINGEQIRSISDLHQTLKKELALPEYYGENLDALWDALTGWVEYPLVLEWRQFEQSKQLTENGAESVLQVFREAKAE GADITIILS A 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 Bacillus Escherichia sample 1390 Bacillus amyloliquefaciens 562 Escherichia coli database_2 pdbx_database_status pdbx_struct_assembly pdbx_struct_oper_list struct_ref_seq_dif repository Initial release Version format compliance Version format compliance Database references Derived calculations Other 1 0 1997-09-04 1 1 2008-03-24 1 2 2011-07-13 1 3 2021-11-03 _database_2.pdbx_DOI _database_2.pdbx_database_accession _pdbx_database_status.process_site _struct_ref_seq_dif.details Y BNL 1997-02-04 REL REL THE STRUCTURE WAS DETERMINED USING TRIPLE-RESONANCE NMR SPECTROSCOPY ON THE 13C, 15N-LABELED BARSTAR MUTANT C40A,C82A LEAST RESTRAINT VIOLATION 150 30 NOESY 6.7 303 K DISTANCE GEOMETRY - SIMULATED ANNEALING BRUNGER refinement X-PLOR 3.1 structure solution X-PLOR 3.1 500 Bruker AMX 500 600 Bruker AMX2 600 LYS 1 n 1 LYS 1 A LYS 2 n 2 LYS 2 A ALA 3 n 3 ALA 3 A VAL 4 n 4 VAL 4 A ILE 5 n 5 ILE 5 A ASN 6 n 6 ASN 6 A GLY 7 n 7 GLY 7 A GLU 8 n 8 GLU 8 A GLN 9 n 9 GLN 9 A ILE 10 n 10 ILE 10 A ARG 11 n 11 ARG 11 A SER 12 n 12 SER 12 A ILE 13 n 13 ILE 13 A SER 14 n 14 SER 14 A ASP 15 n 15 ASP 15 A LEU 16 n 16 LEU 16 A HIS 17 n 17 HIS 17 A GLN 18 n 18 GLN 18 A THR 19 n 19 THR 19 A LEU 20 n 20 LEU 20 A LYS 21 n 21 LYS 21 A LYS 22 n 22 LYS 22 A GLU 23 n 23 GLU 23 A LEU 24 n 24 LEU 24 A ALA 25 n 25 ALA 25 A LEU 26 n 26 LEU 26 A PRO 27 n 27 PRO 27 A GLU 28 n 28 GLU 28 A TYR 29 n 29 TYR 29 A TYR 30 n 30 TYR 30 A GLY 31 n 31 GLY 31 A GLU 32 n 32 GLU 32 A ASN 33 n 33 ASN 33 A LEU 34 n 34 LEU 34 A ASP 35 n 35 ASP 35 A ALA 36 n 36 ALA 36 A LEU 37 n 37 LEU 37 A TRP 38 n 38 TRP 38 A ASP 39 n 39 ASP 39 A ALA 40 n 40 ALA 40 A LEU 41 n 41 LEU 41 A THR 42 n 42 THR 42 A GLY 43 n 43 GLY 43 A TRP 44 n 44 TRP 44 A VAL 45 n 45 VAL 45 A GLU 46 n 46 GLU 46 A TYR 47 n 47 TYR 47 A PRO 48 n 48 PRO 48 A LEU 49 n 49 LEU 49 A VAL 50 n 50 VAL 50 A LEU 51 n 51 LEU 51 A GLU 52 n 52 GLU 52 A TRP 53 n 53 TRP 53 A ARG 54 n 54 ARG 54 A GLN 55 n 55 GLN 55 A PHE 56 n 56 PHE 56 A GLU 57 n 57 GLU 57 A GLN 58 n 58 GLN 58 A SER 59 n 59 SER 59 A LYS 60 n 60 LYS 60 A GLN 61 n 61 GLN 61 A LEU 62 n 62 LEU 62 A THR 63 n 63 THR 63 A GLU 64 n 64 GLU 64 A ASN 65 n 65 ASN 65 A GLY 66 n 66 GLY 66 A ALA 67 n 67 ALA 67 A GLU 68 n 68 GLU 68 A SER 69 n 69 SER 69 A VAL 70 n 70 VAL 70 A LEU 71 n 71 LEU 71 A GLN 72 n 72 GLN 72 A VAL 73 n 73 VAL 73 A PHE 74 n 74 PHE 74 A ARG 75 n 75 ARG 75 A GLU 76 n 76 GLU 76 A ALA 77 n 77 ALA 77 A LYS 78 n 78 LYS 78 A ALA 79 n 79 ALA 79 A GLU 80 n 80 GLU 80 A GLY 81 n 81 GLY 81 A ALA 82 n 82 ALA 82 A ASP 83 n 83 ASP 83 A ILE 84 n 84 ILE 84 A THR 85 n 85 THR 85 A ILE 86 n 86 ILE 86 A ILE 87 n 87 ILE 87 A LEU 88 n 88 LEU 88 A SER 89 n 89 SER 89 A author_defined_assembly 1 monomeric 1.0000000000 0.0000000000 0.0000000000 0.0000000000 1.0000000000 0.0000000000 0.0000000000 0.0000000000 1.0000000000 1_555 identity operation 0.0000000000 0.0000000000 0.0000000000 1 A ARG 11 0.166 SIDE CHAIN 1 A ARG 54 0.245 SIDE CHAIN 1 A ARG 75 0.304 SIDE CHAIN 2 A ARG 11 0.096 SIDE CHAIN 2 A ARG 54 0.240 SIDE CHAIN 2 A ARG 75 0.083 SIDE CHAIN 3 A ARG 11 0.316 SIDE CHAIN 3 A ARG 54 0.317 SIDE CHAIN 3 A ARG 75 0.184 SIDE CHAIN 4 A ARG 11 0.287 SIDE CHAIN 4 A ARG 75 0.300 SIDE CHAIN 5 A ARG 11 0.275 SIDE CHAIN 5 A ARG 54 0.267 SIDE CHAIN 5 A ARG 75 0.261 SIDE CHAIN 6 A ARG 11 0.220 SIDE CHAIN 6 A ARG 54 0.177 SIDE CHAIN 6 A ARG 75 0.316 SIDE CHAIN 7 A ARG 11 0.312 SIDE CHAIN 7 A ARG 54 0.294 SIDE CHAIN 7 A ARG 75 0.192 SIDE CHAIN 8 A ARG 11 0.305 SIDE CHAIN 8 A ARG 54 0.304 SIDE CHAIN 8 A ARG 75 0.180 SIDE CHAIN 9 A ARG 11 0.311 SIDE CHAIN 9 A ARG 54 0.242 SIDE CHAIN 9 A ARG 75 0.217 SIDE CHAIN 10 A ARG 11 0.308 SIDE CHAIN 10 A ARG 54 0.304 SIDE CHAIN 10 A ARG 75 0.212 SIDE CHAIN 11 A ARG 11 0.208 SIDE CHAIN 11 A ARG 54 0.112 SIDE CHAIN 11 A ARG 75 0.299 SIDE CHAIN 12 A ARG 11 0.144 SIDE CHAIN 12 A ARG 54 0.190 SIDE CHAIN 12 A ARG 75 0.088 SIDE CHAIN 13 A ARG 11 0.132 SIDE CHAIN 13 A ARG 54 0.298 SIDE CHAIN 13 A ARG 75 0.257 SIDE CHAIN 14 A ARG 11 0.311 SIDE CHAIN 14 A ARG 54 0.307 SIDE CHAIN 14 A ARG 75 0.223 SIDE CHAIN 15 A ARG 11 0.266 SIDE CHAIN 15 A ARG 54 0.317 SIDE CHAIN 15 A ARG 75 0.115 SIDE CHAIN 16 A ARG 11 0.235 SIDE CHAIN 16 A ARG 54 0.237 SIDE CHAIN 16 A ARG 75 0.317 SIDE CHAIN 17 A ARG 11 0.244 SIDE CHAIN 17 A ARG 54 0.182 SIDE CHAIN 17 A ARG 75 0.290 SIDE CHAIN 18 A ARG 11 0.279 SIDE CHAIN 18 A ARG 54 0.316 SIDE CHAIN 18 A ARG 75 0.249 SIDE CHAIN 19 A ARG 11 0.233 SIDE CHAIN 19 A ARG 75 0.249 SIDE CHAIN 20 A ARG 11 0.303 SIDE CHAIN 20 A ARG 54 0.298 SIDE CHAIN 20 A ARG 75 0.171 SIDE CHAIN 21 A ARG 11 0.222 SIDE CHAIN 21 A ARG 54 0.318 SIDE CHAIN 21 A ARG 75 0.292 SIDE CHAIN 22 A ARG 11 0.167 SIDE CHAIN 22 A ARG 54 0.109 SIDE CHAIN 22 A ARG 75 0.295 SIDE CHAIN 23 A ARG 11 0.258 SIDE CHAIN 23 A ARG 54 0.279 SIDE CHAIN 24 A ARG 11 0.113 SIDE CHAIN 24 A ARG 54 0.271 SIDE CHAIN 24 A ARG 75 0.207 SIDE CHAIN 25 A ARG 11 0.254 SIDE CHAIN 25 A ARG 54 0.283 SIDE CHAIN 25 A ARG 75 0.317 SIDE CHAIN 26 A ARG 11 0.232 SIDE CHAIN 26 A ARG 54 0.258 SIDE CHAIN 26 A ARG 75 0.099 SIDE CHAIN 27 A ARG 11 0.318 SIDE CHAIN 27 A ARG 54 0.300 SIDE CHAIN 27 A ARG 75 0.312 SIDE CHAIN 28 A ARG 11 0.232 SIDE CHAIN 28 A ARG 54 0.309 SIDE CHAIN 28 A ARG 75 0.210 SIDE CHAIN 29 A ARG 11 0.318 SIDE CHAIN 29 A ARG 54 0.267 SIDE CHAIN 29 A ARG 75 0.268 SIDE CHAIN 30 A ARG 11 0.091 SIDE CHAIN 30 A ARG 54 0.291 SIDE CHAIN 30 A ARG 75 0.289 SIDE CHAIN 1 A ALA 25 71.97 51.88 1 A PRO 27 -78.06 -166.63 1 A TYR 30 -31.79 115.43 1 A ALA 40 -81.51 -71.28 1 A THR 42 -82.97 45.65 1 A TRP 44 -165.24 -55.62 1 A GLU 52 -66.46 84.62 1 A ARG 54 -61.68 -138.77 1 A GLN 55 -43.03 102.16 1 A SER 59 83.45 -31.86 1 A THR 63 -135.81 -143.16 1 A ASN 65 179.92 38.67 1 A ALA 79 -90.21 -70.87 1 A ALA 82 -39.65 149.87 1 A ASP 83 -106.46 61.15 1 A LEU 88 -147.36 -39.05 2 A ALA 25 75.41 50.83 2 A TYR 30 -35.39 117.44 2 A ALA 40 -81.67 -70.83 2 A TRP 44 -172.95 -46.15 2 A GLU 52 -61.23 85.67 2 A ARG 54 -52.85 -93.01 2 A GLU 57 -48.54 -71.48 2 A SER 59 83.15 -42.05 2 A LEU 62 -33.13 -31.36 2 A THR 63 -101.77 -133.50 2 A GLU 64 -138.97 -47.03 2 A ASN 65 -156.60 20.50 2 A ALA 82 -40.99 160.81 2 A ASP 83 -115.79 54.81 3 A TYR 30 -34.65 114.06 3 A TRP 44 -174.80 -46.82 3 A GLU 52 -62.51 86.41 3 A GLN 55 49.16 -161.54 3 A PHE 56 173.11 -71.14 3 A LEU 62 -38.81 -25.10 3 A THR 63 -89.53 -134.23 3 A GLU 64 -163.50 59.05 3 A ASN 65 83.61 16.87 3 A ALA 79 -93.88 -70.47 3 A ALA 82 -39.59 155.87 3 A ASP 83 -109.73 54.26 4 A ALA 25 77.22 51.42 4 A TYR 30 -36.21 110.51 4 A ASN 33 -161.91 -168.08 4 A ALA 40 -81.10 -71.35 4 A THR 42 -81.11 41.58 4 A TRP 44 -174.79 -66.44 4 A VAL 45 -38.44 -29.21 4 A GLU 46 73.16 128.00 4 A GLU 52 -65.77 85.56 4 A ARG 54 -68.44 -144.35 4 A GLN 55 -39.76 94.19 4 A GLU 57 -44.46 -83.13 4 A GLN 58 -44.48 168.93 4 A SER 59 84.49 -39.72 4 A LEU 62 -32.59 -32.22 4 A THR 63 -100.73 -147.60 4 A ASN 65 176.48 33.96 4 A ALA 82 -38.94 150.81 4 A ASP 83 -105.69 59.61 4 A LEU 88 -143.00 -42.55 5 A TYR 30 -36.14 138.31 5 A GLU 32 -155.03 54.46 5 A ASN 33 -164.77 -167.69 5 A ALA 40 -82.10 -71.55 5 A THR 42 -82.12 44.10 5 A TRP 44 -164.20 -47.70 5 A GLU 52 -66.47 84.32 5 A ARG 54 -60.83 -166.41 5 A PHE 56 79.43 -74.10 5 A LEU 62 -38.29 -26.12 5 A THR 63 -110.67 -144.04 5 A GLU 64 -168.45 99.39 5 A ASN 65 79.45 -4.07 5 A ALA 82 -40.21 150.57 5 A ASP 83 -107.73 57.68 5 A ILE 87 -92.84 -72.45 5 A LEU 88 67.05 80.48 6 A ALA 25 77.45 52.57 6 A PRO 27 -79.05 -167.27 6 A GLU 32 -172.74 50.41 6 A ALA 40 -81.55 -71.19 6 A THR 42 -80.29 41.05 6 A TRP 44 -167.11 -68.45 6 A VAL 45 -37.54 -29.90 6 A GLU 46 73.41 142.77 6 A GLU 52 -62.02 87.74 6 A ARG 54 -65.25 -141.45 6 A GLN 55 -42.75 95.45 6 A SER 59 84.41 -23.21 6 A THR 63 -126.71 -88.65 6 A GLU 64 170.09 57.60 6 A ALA 82 -38.83 147.57 6 A ASP 83 -105.36 59.92 7 A TYR 30 -37.73 110.14 7 A GLU 32 84.95 -18.42 7 A TRP 44 -175.54 -38.22 7 A GLU 52 -62.93 86.07 7 A GLN 55 62.41 -87.23 7 A PHE 56 84.57 -49.54 7 A SER 59 83.33 -23.47 7 A THR 63 -133.88 -141.27 7 A ASN 65 -179.46 53.66 7 A ALA 79 -94.03 -68.02 7 A ALA 82 -40.26 151.38 7 A ASP 83 -107.32 61.19 7 A LEU 88 -144.43 -53.58 8 A ALA 25 76.67 53.21 8 A TYR 30 -34.62 129.87 8 A GLU 32 -85.65 47.44 8 A TRP 44 -172.97 -46.67 8 A GLU 52 -63.82 85.37 8 A ARG 54 -62.34 -132.71 8 A LEU 62 -38.28 -25.85 8 A THR 63 -102.01 -91.58 8 A GLU 64 166.49 -27.66 8 A ASN 65 -177.41 30.12 8 A ALA 82 -40.27 155.45 8 A ASP 83 -109.37 57.71 8 A LEU 88 -137.19 -45.69 9 A ILE 10 -66.29 95.52 9 A SER 12 178.42 73.37 9 A ILE 13 77.12 -36.65 9 A ALA 25 76.98 57.38 9 A PRO 27 -77.76 -167.65 9 A TYR 30 -35.95 124.19 9 A ALA 40 -81.41 -70.33 9 A TRP 44 -177.21 -43.74 9 A GLU 52 -64.61 84.93 9 A GLN 55 41.53 94.17 9 A SER 59 83.50 -34.31 9 A LEU 62 -38.77 -24.95 9 A THR 63 -104.16 -140.09 9 A GLU 64 -159.01 80.62 9 A ALA 79 -96.04 -67.23 9 A ALA 82 -41.44 157.71 9 A ASP 83 -112.54 62.95 10 A PRO 27 -78.03 -164.59 10 A TYR 30 -28.96 107.37 10 A ALA 40 -81.65 -70.46 10 A THR 42 -84.64 48.20 10 A TRP 44 -167.49 -50.43 10 A GLU 52 -65.72 87.19 10 A ARG 54 -66.32 -141.21 10 A GLN 55 -42.53 95.32 10 A SER 59 82.79 -20.46 10 A THR 63 -132.96 -88.53 10 A GLU 64 176.84 -32.86 10 A ASN 65 179.90 31.84 10 A ALA 79 -90.85 -69.72 10 A ASP 83 -106.54 57.97 10 A LEU 88 66.70 -87.20 11 A ALA 25 77.08 54.48 11 A PRO 27 -77.75 -169.88 11 A TYR 29 -59.60 -8.54 11 A TYR 30 -36.59 151.54 11 A GLU 32 -57.68 84.77 11 A ASN 33 177.13 172.97 11 A ALA 40 -81.76 -70.44 11 A LEU 41 -38.09 -38.73 11 A THR 42 -79.93 37.91 11 A TRP 44 -169.32 -62.91 11 A GLU 46 74.47 140.25 11 A GLU 52 -66.36 86.07 11 A ARG 54 -66.96 -142.16 11 A GLN 55 -41.59 95.12 11 A GLU 57 -44.23 -88.00 11 A SER 59 82.45 -39.35 11 A LEU 62 -37.97 -25.77 11 A THR 63 -94.68 -90.91 11 A GLU 64 165.92 -27.64 11 A ASN 65 178.68 33.37 11 A ALA 79 -92.60 -70.57 11 A ALA 82 -38.93 150.47 11 A ASP 83 -107.44 62.05 11 A LEU 88 -174.39 57.88 12 A ALA 25 75.07 52.26 12 A PRO 27 -78.66 -166.68 12 A TYR 30 -36.37 130.89 12 A GLU 32 -86.25 48.84 12 A TRP 44 -175.36 -41.21 12 A GLU 52 -64.79 85.54 12 A ARG 54 -72.92 -147.12 12 A GLN 55 -43.21 95.35 12 A GLU 57 -50.13 -72.84 12 A SER 59 83.12 -40.98 12 A LEU 62 -34.10 -30.48 12 A THR 63 -96.36 -142.17 12 A GLU 64 -159.81 82.47 12 A ASN 65 79.60 -2.06 12 A ALA 79 -90.49 -71.23 12 A ALA 82 -39.52 153.15 12 A ASP 83 -106.93 59.64 13 A ALA 25 74.53 53.08 13 A PRO 27 -77.96 -165.59 13 A TYR 30 -38.90 143.90 13 A TRP 44 -173.37 -42.65 13 A GLU 52 -62.75 85.39 13 A GLN 55 43.05 77.91 13 A GLU 57 -67.40 -74.66 13 A GLN 58 -59.65 174.16 13 A SER 59 83.11 -36.70 13 A LEU 62 -33.73 -30.75 13 A THR 63 -96.47 -133.49 13 A GLU 64 -152.87 63.68 13 A ALA 79 -157.21 -46.17 13 A ALA 82 -43.61 151.52 13 A ASP 83 -107.28 61.12 14 A PRO 27 -77.17 -165.21 14 A TYR 30 -35.02 145.30 14 A ASN 33 -65.77 -177.51 14 A THR 42 -83.41 46.28 14 A TRP 44 -169.12 -38.80 14 A GLU 52 -64.61 85.23 14 A GLN 55 77.61 -74.83 14 A PHE 56 87.52 -76.14 14 A GLN 58 -60.58 -105.83 14 A SER 59 -34.44 -31.93 14 A THR 63 -135.61 -135.61 14 A ASN 65 80.47 33.32 14 A ALA 79 -89.82 -71.66 14 A ALA 82 -39.95 159.99 14 A ASP 83 -107.46 54.74 15 A SER 12 -176.05 57.54 15 A ILE 13 83.46 -34.14 15 A ALA 25 74.45 54.39 15 A PRO 27 -77.34 -165.89 15 A TYR 30 -37.82 148.67 15 A ALA 40 -82.13 -70.08 15 A THR 42 -84.59 48.62 15 A TRP 44 -169.93 -43.13 15 A GLU 52 -65.15 86.66 15 A ARG 54 -30.06 -98.22 15 A PHE 56 76.01 -74.85 15 A SER 59 83.11 -25.70 15 A THR 63 -122.68 -90.00 15 A GLU 64 168.31 62.48 15 A ALA 79 -94.45 -72.76 15 A ALA 82 -40.98 154.01 15 A ASP 83 -106.42 58.70 15 A ILE 87 -79.66 -77.60 15 A LEU 88 73.41 55.66 16 A TYR 30 -26.47 108.07 16 A GLU 32 156.27 -18.63 16 A ASN 33 -83.55 -154.68 16 A ALA 40 -82.22 -71.16 16 A THR 42 -84.52 47.75 16 A TRP 44 -170.12 -42.38 16 A GLU 52 -66.32 84.60 16 A GLN 55 52.36 -88.76 16 A PHE 56 84.47 -72.94 16 A LEU 62 -38.40 -25.65 16 A THR 63 -103.40 -140.85 16 A GLU 64 -159.54 81.21 16 A ALA 79 -91.87 -66.91 16 A ALA 82 -40.13 153.22 16 A ASP 83 -109.19 57.37 17 A SER 12 -178.63 63.40 17 A ILE 13 82.73 -38.18 17 A TYR 30 -35.01 112.88 17 A ALA 40 -81.11 -71.06 17 A THR 42 -79.66 41.11 17 A TRP 44 -174.43 -35.51 17 A GLU 46 72.04 150.69 17 A GLU 52 -66.78 84.52 17 A GLN 55 49.82 -144.66 17 A PHE 56 177.62 -73.17 17 A GLN 58 -46.41 -80.77 17 A LEU 62 -38.76 -25.60 17 A THR 63 -94.44 -143.21 17 A GLU 64 -157.42 77.98 17 A ASN 65 78.28 -2.21 17 A ALA 79 -87.02 -70.37 17 A ALA 82 -38.53 148.41 17 A ASP 83 -106.44 58.08 17 A LEU 88 -104.56 -90.19 18 A TYR 30 -44.87 153.08 18 A GLU 32 -89.11 34.72 18 A TRP 44 -173.91 -45.15 18 A GLU 52 -65.35 84.41 18 A ARG 54 -49.60 -102.93 18 A PHE 56 84.39 -45.71 18 A LEU 62 -37.28 -27.97 18 A THR 63 -106.58 -141.77 18 A GLU 64 -162.10 85.37 18 A ASN 65 82.32 -8.57 18 A ALA 79 -92.56 -65.77 18 A ALA 82 -40.62 158.61 18 A ASP 83 -113.78 56.34 18 A LEU 88 -141.67 -39.38 19 A ALA 25 72.04 52.84 19 A PRO 27 -77.64 -167.49 19 A TYR 30 -37.08 129.72 19 A TRP 44 -176.53 -40.32 19 A GLU 52 -60.10 86.23 19 A ARG 54 -74.20 -102.27 19 A PHE 56 81.68 -46.92 19 A LEU 62 -38.50 -24.41 19 A THR 63 -106.58 -100.24 19 A GLU 64 170.57 58.24 19 A ASN 65 86.46 7.35 19 A ALA 79 -90.41 -69.94 19 A ALA 82 -41.53 153.88 19 A ASP 83 -110.36 56.55 20 A ILE 10 -68.76 96.98 20 A ALA 25 75.72 52.81 20 A TYR 30 -39.10 122.62 20 A GLU 32 35.36 47.15 20 A ALA 40 -81.41 -71.94 20 A THR 42 -84.01 47.70 20 A TRP 44 -167.24 -46.75 20 A GLU 52 -61.07 87.49 20 A ARG 54 -54.88 -95.53 20 A LEU 62 -38.48 -26.00 20 A THR 63 -106.12 -142.99 20 A GLU 64 -158.78 84.23 20 A ASN 65 80.07 -5.62 20 A ALA 79 -91.33 -69.00 20 A ALA 82 -38.87 150.40 20 A ASP 83 -106.56 55.88 21 A ALA 25 72.00 50.87 21 A PRO 27 -77.05 -168.08 21 A TYR 30 -39.33 142.29 21 A TRP 44 -171.42 -36.59 21 A GLU 46 68.37 151.50 21 A GLU 52 -62.87 84.81 21 A GLU 57 -52.17 -87.56 21 A GLN 58 -47.18 161.05 21 A SER 59 83.12 -42.73 21 A LEU 62 -37.46 -26.59 21 A THR 63 -97.37 -141.03 21 A GLU 64 -161.57 87.27 21 A ALA 79 -90.86 -70.68 21 A ASP 83 -108.40 58.25 22 A PRO 27 -78.04 -167.60 22 A TYR 30 -32.10 117.78 22 A GLU 32 -84.84 42.93 22 A ALA 40 -81.57 -70.08 22 A THR 42 -84.01 48.51 22 A TRP 44 -170.19 -39.14 22 A GLU 52 -66.35 85.10 22 A ARG 54 -38.33 -97.10 22 A PHE 56 83.26 -64.21 22 A SER 59 82.43 -40.02 22 A LEU 62 -36.85 -27.39 22 A THR 63 -91.54 -143.23 22 A GLU 64 -163.88 92.59 22 A ALA 79 -91.47 -68.23 22 A ALA 82 -40.36 154.47 22 A ASP 83 -111.16 61.56 23 A ALA 25 75.76 52.44 23 A PRO 27 -76.91 -169.16 23 A TYR 30 -33.61 117.93 23 A TRP 44 -175.77 -49.88 23 A GLU 46 62.34 102.85 23 A GLU 52 -62.07 87.31 23 A GLN 55 52.47 -151.58 23 A PHE 56 179.36 -64.24 23 A GLN 58 -63.46 -72.32 23 A LEU 62 -39.00 -24.91 23 A THR 63 -108.60 -149.93 23 A ASN 65 -176.13 32.87 23 A ALA 79 -91.30 -67.11 23 A ALA 82 -41.78 160.63 23 A ASP 83 -116.67 58.01 24 A SER 12 -178.78 66.20 24 A ILE 13 80.00 -34.49 24 A PRO 27 -77.50 -168.85 24 A TYR 30 -38.75 127.90 24 A GLU 32 178.18 47.56 24 A TRP 44 -174.59 -42.59 24 A GLU 52 -65.12 87.49 24 A ARG 54 -61.38 -129.37 24 A PHE 56 -35.89 -30.84 24 A SER 59 80.56 -25.93 24 A GLN 61 -78.66 -82.27 24 A LEU 62 -19.75 -49.91 24 A THR 63 -86.37 -140.38 24 A GLU 64 -163.10 93.80 24 A ALA 79 -87.68 -70.24 24 A ALA 82 -41.24 152.01 24 A ASP 83 -108.31 60.16 25 A ALA 25 75.82 52.83 25 A PRO 27 -77.36 -165.53 25 A TYR 30 -29.98 110.86 25 A ALA 40 -81.81 -71.38 25 A THR 42 -83.81 48.11 25 A TRP 44 -168.42 -44.45 25 A GLU 52 -68.04 83.81 25 A ARG 54 -55.36 -86.81 25 A LEU 62 -36.48 -27.74 25 A THR 63 -104.13 -139.66 25 A GLU 64 -158.99 82.12 25 A ALA 79 -92.37 -71.96 25 A ALA 82 -40.60 151.51 25 A ASP 83 -107.21 62.60 26 A ALA 25 75.12 53.90 26 A TYR 30 -35.73 110.93 26 A GLU 32 73.69 40.96 26 A ALA 40 -81.26 -70.45 26 A THR 42 -80.03 42.25 26 A TRP 44 -174.25 -59.54 26 A GLU 46 67.51 125.34 26 A GLU 52 -65.19 84.70 26 A GLN 55 82.58 -46.83 26 A PHE 56 83.93 -60.23 26 A SER 59 83.10 -41.49 26 A LEU 62 -34.53 -30.07 26 A THR 63 -94.25 -137.61 26 A GLU 64 -143.59 -47.37 26 A ASN 65 -152.50 18.41 26 A ALA 79 -95.45 -72.54 26 A ALA 82 -40.67 155.29 26 A ASP 83 -110.35 62.48 27 A ALA 25 76.15 49.16 27 A TYR 30 -38.13 112.65 27 A ALA 40 -81.10 -72.16 27 A THR 42 -83.99 47.48 27 A TRP 44 -169.31 -44.73 27 A GLU 52 -65.28 85.03 27 A ARG 54 -64.47 -141.23 27 A GLN 55 -43.08 95.81 27 A GLU 57 -68.38 -77.83 27 A GLN 58 -49.18 150.84 27 A SER 59 84.42 -28.06 27 A THR 63 -133.04 -130.03 27 A ALA 79 -90.32 -69.87 27 A ALA 82 -39.66 149.47 27 A ASP 83 -105.64 60.10 28 A ALA 25 76.58 53.15 28 A PRO 27 -77.04 -169.81 28 A TYR 30 -35.74 119.33 28 A GLU 32 -49.41 89.08 28 A ASN 33 -176.04 -171.89 28 A TRP 44 -173.98 -41.71 28 A GLU 52 -67.28 84.71 28 A ARG 54 -65.39 -126.70 28 A GLN 58 -46.13 -99.46 28 A SER 59 -27.09 -37.52 28 A LYS 60 -56.81 -74.13 28 A THR 63 -137.75 -95.41 28 A GLU 64 177.99 63.44 28 A ALA 79 -90.84 -70.21 28 A ALA 82 -39.20 151.28 28 A ASP 83 -107.13 60.59 29 A PRO 27 -80.00 -165.83 29 A TYR 30 -28.17 118.90 29 A ASN 33 -171.24 -178.73 29 A THR 42 -80.72 42.95 29 A TRP 44 -172.48 -46.73 29 A GLU 46 72.03 123.97 29 A GLU 52 -64.70 84.58 29 A GLN 55 62.81 -86.36 29 A PHE 56 84.12 -44.35 29 A SER 59 84.40 -23.37 29 A THR 63 -120.84 -94.12 29 A GLU 64 -176.82 47.62 29 A ASN 65 84.40 17.79 29 A ALA 79 -91.20 -71.97 29 A ALA 82 -39.92 153.45 29 A ASP 83 -109.23 61.30 29 A LEU 88 64.88 -92.68 30 A ALA 25 72.72 51.51 30 A PRO 27 -78.99 -168.02 30 A TYR 30 -38.37 135.65 30 A GLU 32 -147.24 47.93 30 A THR 42 -84.73 49.14 30 A TRP 44 -170.82 -40.10 30 A GLU 52 -66.10 84.93 30 A GLN 55 43.46 70.54 30 A GLU 57 -63.91 -84.50 30 A GLN 58 -48.63 159.96 30 A SER 59 83.07 -43.22 30 A LEU 62 -35.85 -28.88 30 A THR 63 -91.83 -136.24 30 A GLU 64 -161.47 82.34 30 A ALA 79 -92.94 -67.44 30 A ALA 82 -39.73 158.09 30 A ASP 83 -112.67 61.34 30 A ILE 87 -88.23 -76.72 model building X-PLOR 3.1 refinement X-PLOR 3.1 phasing X-PLOR 3.1 NMR 15N RELAXATION AND STRUCTURAL STUDIES REVEAL CONFORMATIONAL EXCHANGE IN BARSTAR C40/82A, 30 STRUCTURES 1 Y N A ASN 33 A ASN 33 HELX_P A GLY 43 A GLY 43 1 H2 11 A PHE 56 A PHE 56 HELX_P A THR 63 A THR 63 1 H3 8 A GLU 68 A GLU 68 HELX_P A GLY 81 A GLY 81 1 H4 14 RIBONUCLEASE INHIBITOR RIBONUCLEASE INHIBITOR A TYR 47 A TYR 47 1 A PRO 48 A PRO 48 1.81 A TYR 47 A TYR 47 2 A PRO 48 A PRO 48 1.91 A TYR 47 A TYR 47 3 A PRO 48 A PRO 48 2.28 A TYR 47 A TYR 47 4 A PRO 48 A PRO 48 1.64 A TYR 47 A TYR 47 5 A PRO 48 A PRO 48 1.47 A TYR 47 A TYR 47 6 A PRO 48 A PRO 48 1.46 A TYR 47 A TYR 47 7 A PRO 48 A PRO 48 2.06 A TYR 47 A TYR 47 8 A PRO 48 A PRO 48 2.18 A TYR 47 A TYR 47 9 A PRO 48 A PRO 48 1.88 A TYR 47 A TYR 47 10 A PRO 48 A PRO 48 1.91 A TYR 47 A TYR 47 11 A PRO 48 A PRO 48 1.40 A TYR 47 A TYR 47 12 A PRO 48 A PRO 48 1.62 A TYR 47 A TYR 47 13 A PRO 48 A PRO 48 1.80 A TYR 47 A TYR 47 14 A PRO 48 A PRO 48 1.79 A TYR 47 A TYR 47 15 A PRO 48 A PRO 48 1.86 A TYR 47 A TYR 47 16 A PRO 48 A PRO 48 2.06 A TYR 47 A TYR 47 17 A PRO 48 A PRO 48 2.05 A TYR 47 A TYR 47 18 A PRO 48 A PRO 48 1.83 A TYR 47 A TYR 47 19 A PRO 48 A PRO 48 2.11 A TYR 47 A TYR 47 20 A PRO 48 A PRO 48 1.82 A TYR 47 A TYR 47 21 A PRO 48 A PRO 48 2.79 A TYR 47 A TYR 47 22 A PRO 48 A PRO 48 1.86 A TYR 47 A TYR 47 23 A PRO 48 A PRO 48 2.31 A TYR 47 A TYR 47 24 A PRO 48 A PRO 48 2.12 A TYR 47 A TYR 47 25 A PRO 48 A PRO 48 1.46 A TYR 47 A TYR 47 26 A PRO 48 A PRO 48 1.81 A TYR 47 A TYR 47 27 A PRO 48 A PRO 48 1.89 A TYR 47 A TYR 47 28 A PRO 48 A PRO 48 1.37 A TYR 47 A TYR 47 29 A PRO 48 A PRO 48 1.81 A TYR 47 A TYR 47 30 A PRO 48 A PRO 48 1.80 BARS_BACAM UNP 1 1 P11540 KKAVINGEQIRSISDLHQTLKKELALPEYYGENLDALWDCLTGWVEYPLVLEWRQFEQSKQLTENGAESVLQVFREAKAE GCDITIILS 1 89 1AB7 1 89 P11540 A 1 1 89 1 CYS engineered mutation ALA 40 1AB7 A P11540 UNP 40 40 1 CYS engineered mutation ALA 82 1AB7 A P11540 UNP 82 82 2 parallel A LEU 49 A LEU 49 A ARG 54 A ARG 54 A ASP 83 A ASP 83 A SER 89 A SER 89 RESIDUE 26 - 44 IS THE REGION THAT BINDS TO THE ACTIVE SITE OF THE RIBONUCLEASE BARNASE AND INHIBITS THE ENZYME. Unknown 19 A LEU 26 A LEU 26 19 1_555 A PRO 27 A PRO 27 19 1_555 A GLU 28 A GLU 28 19 1_555 A TYR 29 A TYR 29 19 1_555 A TYR 30 A TYR 30 19 1_555 A GLY 31 A GLY 31 19 1_555 A GLU 32 A GLU 32 19 1_555 A ASN 33 A ASN 33 19 1_555 A LEU 34 A LEU 34 19 1_555 A ASP 35 A ASP 35 19 1_555 A ALA 36 A ALA 36 19 1_555 A LEU 37 A LEU 37 19 1_555 A TRP 38 A TRP 38 19 1_555 A ASP 39 A ASP 39 19 1_555 A ALA 40 A ALA 40 19 1_555 A LEU 41 A LEU 41 19 1_555 A THR 42 A THR 42 19 1_555 A GLY 43 A GLY 43 19 1_555 A TRP 44 A TRP 44 19 1_555 1 P 1