0.034459 0.000000 0.006792 0.000000 0.013217 0.000000 0.000000 0.000000 0.018899 0.00000 0.00000 0.00000 Vatzaki, E.H. Allen, S.C. Leonidas, D.D. Acharya, K.R. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic 4 90.00 101.15 90.00 29.020 75.660 53.930 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 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 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 IX Eur.J.Biochem. EJBCAI 0262 0014-2956 260 176 182 10.1046/j.1432-1327.1999.00142.x 10091597 Crystal structure of a hybrid between ribonuclease A and bovine seminal ribonuclease--the basic surface, at 2.0 A resolution. 1999 10.2210/pdb1b6v/pdb pdb_00001b6v 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 289 1 MIRRORS IMAGE PLATE MARRESEARCH M x-ray 1 0.87 1.0 PX9.6 SRS 0.87 SYNCHROTRON SRS BEAMLINE PX9.6 13733.617 RIBONUCLEASE 3.1.27.5 Q55K, N62K, A64T, Y76K, S80R, E111G, N113K 2 man polymer 18.015 water 102 nat water no no KETAAAKFERQHMDSSTSAASSSNYCNQMMKSRNLTKDRCKPVNTFVHESLADVKAVCSQKKVTCKNGQTNCYQSKSTMR ITDCRETGSSKYPNCAYKTTQANKHIIVACGGKPYVPVHFDASV KETAAAKFERQHMDSSTSAASSSNYCNQMMKSRNLTKDRCKPVNTFVHESLADVKAVCSQKKVTCKNGQTNCYQSKSTMR ITDCRETGSSKYPNCAYKTTQANKHIIVACGGKPYVPVHFDASV 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 Escherichia sample SYNTHETIC GENE LON- HPTR- TETR CELLS 9913 Bos taurus LON- HPTR- TETR CELLS 562 Escherichia coli 2.34 47.5 4.3 pH 4.3 struct_ref_seq_dif database_2 pdbx_initial_refinement_model struct_ref_seq_dif repository Initial release Version format compliance Version format compliance Database references Database references Refinement description 1 0 1999-06-15 1 1 2008-03-24 1 2 2011-07-13 1 3 2018-03-14 1 4 2023-08-02 _struct_ref_seq_dif.details _database_2.pdbx_DOI _database_2.pdbx_database_accession _struct_ref_seq_dif.details Y BNL 1999-01-18 REL HOH water 3RN3 PDB ENTRY 3RN3 PDB experimental model HOH 3 2 HOH HOH 125 A HOH 4 2 HOH HOH 126 A HOH 5 2 HOH HOH 127 A HOH 6 2 HOH HOH 128 A HOH 7 2 HOH HOH 129 A HOH 8 2 HOH HOH 130 A HOH 9 2 HOH HOH 131 A HOH 10 2 HOH HOH 132 A HOH 11 2 HOH HOH 133 A HOH 12 2 HOH HOH 134 A HOH 13 2 HOH HOH 135 A HOH 14 2 HOH HOH 136 A HOH 15 2 HOH HOH 137 A HOH 16 2 HOH HOH 138 A HOH 17 2 HOH HOH 139 A HOH 18 2 HOH HOH 140 A HOH 19 2 HOH HOH 141 A HOH 20 2 HOH HOH 142 A HOH 21 2 HOH HOH 143 A HOH 22 2 HOH HOH 144 A HOH 23 2 HOH HOH 145 A HOH 24 2 HOH HOH 146 A HOH 25 2 HOH HOH 147 A HOH 26 2 HOH HOH 148 A HOH 27 2 HOH HOH 149 A HOH 28 2 HOH HOH 150 A HOH 29 2 HOH HOH 151 A HOH 30 2 HOH HOH 152 A HOH 32 2 HOH HOH 153 A HOH 33 2 HOH HOH 154 A HOH 34 2 HOH HOH 155 A HOH 35 2 HOH HOH 156 A HOH 37 2 HOH HOH 157 A HOH 38 2 HOH HOH 158 A HOH 39 2 HOH HOH 159 A HOH 40 2 HOH HOH 160 A HOH 41 2 HOH HOH 161 A HOH 52 2 HOH HOH 162 A HOH 55 2 HOH HOH 163 A HOH 56 2 HOH HOH 164 A HOH 57 2 HOH HOH 165 A HOH 58 2 HOH HOH 166 A HOH 59 2 HOH HOH 167 A HOH 60 2 HOH HOH 168 A HOH 61 2 HOH HOH 169 A HOH 62 2 HOH HOH 170 A HOH 63 2 HOH HOH 171 A HOH 64 2 HOH HOH 172 A HOH 65 2 HOH HOH 173 A HOH 66 2 HOH HOH 174 A HOH 67 2 HOH HOH 175 A HOH 68 2 HOH HOH 176 A HOH 69 2 HOH HOH 177 A HOH 70 2 HOH HOH 178 A HOH 71 2 HOH HOH 179 A HOH 72 2 HOH HOH 180 A HOH 73 2 HOH HOH 181 A HOH 74 2 HOH HOH 182 A HOH 75 2 HOH HOH 183 A HOH 76 2 HOH HOH 184 A HOH 77 2 HOH HOH 185 A HOH 78 2 HOH HOH 186 A HOH 79 2 HOH HOH 187 A HOH 80 2 HOH HOH 188 A HOH 81 2 HOH HOH 189 A HOH 82 2 HOH HOH 190 A HOH 83 2 HOH HOH 191 A HOH 84 2 HOH HOH 192 A HOH 85 2 HOH HOH 193 A HOH 86 2 HOH HOH 194 A HOH 87 2 HOH HOH 195 A HOH 88 2 HOH HOH 196 A HOH 89 2 HOH HOH 197 A HOH 1 2 HOH HOH 125 B HOH 2 2 HOH HOH 126 B HOH 31 2 HOH HOH 127 B HOH 36 2 HOH HOH 128 B HOH 42 2 HOH HOH 129 B HOH 43 2 HOH HOH 130 B HOH 44 2 HOH HOH 131 B HOH 45 2 HOH HOH 132 B HOH 46 2 HOH HOH 133 B HOH 47 2 HOH HOH 134 B HOH 48 2 HOH HOH 135 B HOH 49 2 HOH HOH 136 B HOH 50 2 HOH HOH 137 B HOH 51 2 HOH HOH 138 B HOH 53 2 HOH HOH 139 B HOH 54 2 HOH HOH 140 B HOH 90 2 HOH HOH 141 B HOH 91 2 HOH HOH 142 B HOH 92 2 HOH HOH 143 B HOH 93 2 HOH HOH 144 B HOH 94 2 HOH HOH 145 B HOH 95 2 HOH HOH 146 B HOH 96 2 HOH HOH 147 B HOH 97 2 HOH HOH 148 B HOH 98 2 HOH HOH 149 B HOH 99 2 HOH HOH 150 B HOH 100 2 HOH HOH 151 B HOH 101 2 HOH HOH 152 B HOH 102 2 HOH HOH 153 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 LYS 55 n 55 LYS 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 LYS 62 n 62 LYS 62 A VAL 63 n 63 VAL 63 A THR 64 n 64 THR 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 LYS 76 n 76 LYS 76 A SER 77 n 77 SER 77 A THR 78 n 78 THR 78 A MET 79 n 79 MET 79 A ARG 80 n 80 ARG 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 GLY 111 n 111 GLY 111 A GLY 112 n 112 GLY 112 A LYS 113 n 113 LYS 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 LYS 55 n 55 LYS 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 LYS 62 n 62 LYS 62 B VAL 63 n 63 VAL 63 B THR 64 n 64 THR 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 LYS 76 n 76 LYS 76 B SER 77 n 77 SER 77 B THR 78 n 78 THR 78 B MET 79 n 79 MET 79 B ARG 80 n 80 ARG 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 GLY 111 n 111 GLY 111 B GLY 112 n 112 GLY 112 B LYS 113 n 113 LYS 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_defined_assembly 1 monomeric 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 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 HIS 105 B O HIS 105 B N VAL 124 B N VAL 124 1 A ALA 20 -93.75 51.44 1 A SER 22 72.16 114.98 1 A ARG 39 173.90 167.86 1 A GLN 60 -102.78 -130.34 1 A ASN 71 -95.84 33.41 1 B SER 21 -69.13 -98.17 1 B SER 22 -0.77 119.13 1 B SER 23 -49.42 -12.90 1 B GLN 60 -104.25 -144.86 1 B LYS 61 -59.69 105.21 1 B ASN 71 -93.73 38.32 PROTEIN_REP.PARAM TOPHCSDX.PRO 19.3 0.00 0.00 0.00 0.00 0.00 0.00 BULK SOLVENT MODEL USED 0.256 0.009 0.182 0.182 2.00 20.00 744 15037 4.9 97.1 RANDOM 10000000.00 0.00100 1 RESTRAINED THROUGHOUT 0.0 MOLECULAR REPLACEMENT PDB ENTRY 3RN3 0.29 0.20 5.00 0.25 0.20 2.00 20.00 102 2006 0 0 1904 0.010 1.5 27.7 0.72 0.272 0.027 0.23 2.13 104 2346 6 4.2 95.5 16.8 2.0 25 1B6V 16566 0.095 1 6.2 1.8 96.5 2.0 2.1 89.7 data reduction DENZO data scaling SCALEPACK phasing AMoRE refinement X-PLOR 3.851 CRYSTAL STRUCTURE OF A HYBRID BETWEEN RIBONUCLEASE A AND BOVINE SEMINAL RIBONUCLEASE 1 N N 1 N N 2 N N 2 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 TYR 25 B TYR 25 HELX_P B SER 32 B SER 32 1 5 8 B LEU 51 B LEU 51 HELX_P B SER 59 B SER 59 1 6 9 disulf 2.030 A CYS 26 A SG CYS 26 1_555 A CYS 84 A SG CYS 84 1_555 disulf 2.016 A CYS 40 A SG CYS 40 1_555 A CYS 95 A SG CYS 95 1_555 disulf 2.025 A CYS 58 A SG CYS 58 1_555 A CYS 110 A SG CYS 110 1_555 disulf 2.025 A CYS 65 A SG CYS 65 1_555 A CYS 72 A SG CYS 72 1_555 disulf 2.035 B CYS 26 B SG CYS 26 1_555 B CYS 84 B SG CYS 84 1_555 disulf 2.017 B CYS 40 B SG CYS 40 1_555 B CYS 95 B SG CYS 95 1_555 disulf 2.026 B CYS 58 B SG CYS 58 1_555 B CYS 110 B SG CYS 110 1_555 disulf 2.030 B CYS 65 B SG CYS 65 1_555 B CYS 72 B SG CYS 72 1_555 MOLECULAR EVOLUTION MOLECULAR EVOLUTION, RIBONUCLEASE A TYR 92 A TYR 92 1 A PRO 93 A PRO 93 0.49 A LYS 113 A LYS 113 1 A PRO 114 A PRO 114 -0.11 B TYR 92 B TYR 92 1 B PRO 93 B PRO 93 0.32 B LYS 113 B LYS 113 1 B PRO 114 B PRO 114 0.00 given -0.999938 -0.006820 0.008777 0.006832 -0.999976 0.001323 0.008767 0.001383 0.999961 14.76070 31.53060 20.96240 RNAS1_BOVIN UNP 1 1 P61823 MALKSLVLLSLLVLVLLLVRVQPSLGKETAAAKFERQHMDSSTSAASSSNYCNQMMKSRNLTKDRCKPVNTFVHESLADV QAVCSQKNVACKNGQTNCYQSYSTMSITDCRETGSSKYPNCAYKTTQANKHIIVACEGNPYVPVHFDASV 27 150 1B6V 1 124 P61823 A 1 1 124 27 150 1B6V 1 124 P61823 B 1 1 124 1 GLN engineered mutation LYS 55 1B6V A P61823 UNP 81 55 1 ASN engineered mutation LYS 62 1B6V A P61823 UNP 88 62 1 ALA engineered mutation THR 64 1B6V A P61823 UNP 90 64 1 TYR engineered mutation LYS 76 1B6V A P61823 UNP 102 76 1 SER engineered mutation ARG 80 1B6V A P61823 UNP 106 80 1 GLU engineered mutation GLY 111 1B6V A P61823 UNP 137 111 1 ASN engineered mutation LYS 113 1B6V A P61823 UNP 139 113 2 GLN engineered mutation LYS 55 1B6V B P61823 UNP 81 55 2 ASN engineered mutation LYS 62 1B6V B P61823 UNP 88 62 2 ALA engineered mutation THR 64 1B6V B P61823 UNP 90 64 2 TYR engineered mutation LYS 76 1B6V B P61823 UNP 102 76 2 SER engineered mutation ARG 80 1B6V B P61823 UNP 106 80 2 GLU engineered mutation GLY 111 1B6V B P61823 UNP 137 111 2 ASN engineered mutation LYS 113 1B6V B P61823 UNP 139 113 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 HIS 105 B HIS 105 B ALA 109 B ALA 109 B HIS 119 B HIS 119 B VAL 124 B VAL 124 4 P 1 21 1