0.019485 0.000000 0.000000 0.000000 0.017129 0.000000 0.000000 0.000000 0.010694 0.00000 0.00000 0.00000 Arkin, M.A. Randal, M. DeLano, W.L. Hyde, J. Luong, T.N. Oslob, J.D. Raphael, D.R. Taylor, L. Wang, J. McDowell, R.S. Wells, J.A. Braisted, A.C. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic 8 90.00 90.00 90.00 51.323 58.379 93.507 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 C30 H35 N5 O6 561.629 2-[2-(1-CARBAMIMIDOYL-PIPERIDIN-3-YL)-ACETYLAMINO]-3-{4-[2-(3-OXALYL-1H-INDOL-7-YL)ETHYL]-PHENYL}-PROPIONIC ACID METHYL ESTER 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 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 US Proc.Natl.Acad.Sci.USA PNASA6 0040 0027-8424 100 1603 1608 10.1073/pnas.252756299 12582206 Binding of small molecules to an adaptive protein-protein interface 2003 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 100 1 mirrors IMAGE PLATE 2000-08-16 RIGAKU RAXIS IV yale mirrors SINGLE WAVELENGTH M x-ray 1 1.5418 1.0 1.5418 ROTATING ANODE RIGAKU 15435.979 interleukin-2 2 man polymer 561.629 2-[2-(1-CARBAMIMIDOYL-PIPERIDIN-3-YL)-ACETYLAMINO]-3-{4-[2-(3-OXALYL-1H-INDOL-7-YL)ETHYL]-PHENYL}-PROPIONIC ACID METHYL ESTER 2 syn non-polymer 18.015 water 104 nat water IL-2, T-CELL GROWTH FACTOR, TCGF, ALDESLEUKIN no no APTSSSTKKTQLQLEHLLLDLQMILNGINNYKNPKLTRMLTFKFYMPKKATELKHLQCLEEELKPLEEVLNLAQSKNFHL RPRDLISNINVIVLELKGSETTFMCEYADETATIVEFLNRWITFCQSIISTLT APTSSSTKKTQLQLEHLLLDLQMILNGINNYKNPKLTRMLTFKFYMPKKATELKHLQCLEEELKPLEEVLNLAQSKNFHL RPRDLISNINVIVLELKGSETTFMCEYADETATIVEFLNRWITFCQSIISTLT 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 n n n n n n n n n human Homo Escherichia Escherichia coli sample 9606 Homo sapiens 511693 Escherichia coli BL21 BL21 plasmid pRSET 1 2.27 45.77 VAPOR DIFFUSION, HANGING DROP 7.0 pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K 298 software repository Initial release Version format compliance Version format compliance Refinement description 1 0 2002-07-31 1 1 2008-04-28 1 2 2011-07-13 1 3 2017-10-11 1m47 is the Crystal Structure of Human Interleukin-2 1m48 is the crystal structure of human IL-2 complexed with (R)-N-[2-[1-(Aminoiminomethyl)-3-piperidinyl]-1-oxoethyl]-4-(phenylethynyl)-L-phenylalanine methyl ester 1m4a is the crystal structure of human interleukin-2 Y31C covalently modified at C31 with (1H-Indol-3-yl)-(2-mercapto-ethoxyimino)-acetic acid 1m4b is the crystal structure of human interleukin-2 K43C covalently modified at C43 with 2-[2-(2-Cyclohexyl-2-guanidino-acetylamino)-acetylamino]-N-(3-mercapto-propyl)-propionamide 1M4C is the crystal structure of human interleukin-2 RCSB Y RCSB 2002-07-02 REL REL CMM 2-[2-(1-CARBAMIMIDOYL-PIPERIDIN-3-YL)-ACETYLAMINO]-3-{4-[2-(3-OXALYL-1H-INDOL-7-YL)ETHYL]-PHENYL}-PROPIONIC ACID METHYL ESTER HOH water FRG 201 2 CMM CMM 201 A FRG 202 2 CMM CMM 202 B HOH 1 3 HOH HOH 202 A HOH 4 3 HOH HOH 203 A HOH 6 3 HOH HOH 204 A HOH 7 3 HOH HOH 205 A HOH 9 3 HOH HOH 206 A HOH 10 3 HOH HOH 207 A HOH 11 3 HOH HOH 208 A HOH 12 3 HOH HOH 209 A HOH 13 3 HOH HOH 210 A HOH 14 3 HOH HOH 211 A HOH 17 3 HOH HOH 212 A HOH 18 3 HOH HOH 213 A HOH 19 3 HOH HOH 214 A HOH 21 3 HOH HOH 215 A HOH 22 3 HOH HOH 216 A HOH 26 3 HOH HOH 217 A HOH 28 3 HOH HOH 218 A HOH 30 3 HOH HOH 219 A HOH 32 3 HOH HOH 220 A HOH 33 3 HOH HOH 221 A HOH 34 3 HOH HOH 222 A HOH 35 3 HOH HOH 223 A HOH 37 3 HOH HOH 224 A HOH 39 3 HOH HOH 225 A HOH 42 3 HOH HOH 226 A HOH 43 3 HOH HOH 227 A HOH 44 3 HOH HOH 228 A HOH 45 3 HOH HOH 229 A HOH 50 3 HOH HOH 230 A HOH 52 3 HOH HOH 231 A HOH 53 3 HOH HOH 232 A HOH 57 3 HOH HOH 233 A HOH 65 3 HOH HOH 234 A HOH 67 3 HOH HOH 235 A HOH 68 3 HOH HOH 236 A HOH 69 3 HOH HOH 237 A HOH 70 3 HOH HOH 238 A HOH 73 3 HOH HOH 239 A HOH 74 3 HOH HOH 240 A HOH 81 3 HOH HOH 241 A HOH 83 3 HOH HOH 242 A HOH 85 3 HOH HOH 243 A HOH 87 3 HOH HOH 244 A HOH 90 3 HOH HOH 245 A HOH 91 3 HOH HOH 246 A HOH 94 3 HOH HOH 247 A HOH 95 3 HOH HOH 248 A HOH 96 3 HOH HOH 249 A HOH 103 3 HOH HOH 250 A HOH 105 3 HOH HOH 251 A HOH 108 3 HOH HOH 252 A HOH 109 3 HOH HOH 253 A HOH 110 3 HOH HOH 254 A HOH 112 3 HOH HOH 255 A HOH 114 3 HOH HOH 256 A HOH 116 3 HOH HOH 257 A HOH 119 3 HOH HOH 258 A HOH 2 3 HOH HOH 203 B HOH 3 3 HOH HOH 204 B HOH 5 3 HOH HOH 205 B HOH 8 3 HOH HOH 206 B HOH 15 3 HOH HOH 207 B HOH 16 3 HOH HOH 208 B HOH 20 3 HOH HOH 209 B HOH 23 3 HOH HOH 210 B HOH 24 3 HOH HOH 211 B HOH 25 3 HOH HOH 212 B HOH 27 3 HOH HOH 213 B HOH 29 3 HOH HOH 214 B HOH 31 3 HOH HOH 215 B HOH 36 3 HOH HOH 216 B HOH 38 3 HOH HOH 217 B HOH 40 3 HOH HOH 218 B HOH 41 3 HOH HOH 219 B HOH 46 3 HOH HOH 220 B HOH 47 3 HOH HOH 221 B HOH 49 3 HOH HOH 222 B HOH 54 3 HOH HOH 223 B HOH 56 3 HOH HOH 224 B HOH 58 3 HOH HOH 225 B HOH 59 3 HOH HOH 226 B HOH 60 3 HOH HOH 227 B HOH 61 3 HOH HOH 228 B HOH 62 3 HOH HOH 229 B HOH 64 3 HOH HOH 230 B HOH 66 3 HOH HOH 231 B HOH 71 3 HOH HOH 232 B HOH 72 3 HOH HOH 233 B HOH 78 3 HOH HOH 234 B HOH 79 3 HOH HOH 235 B HOH 84 3 HOH HOH 236 B HOH 86 3 HOH HOH 237 B HOH 88 3 HOH HOH 238 B HOH 89 3 HOH HOH 239 B HOH 93 3 HOH HOH 240 B HOH 98 3 HOH HOH 241 B HOH 99 3 HOH HOH 242 B HOH 101 3 HOH HOH 243 B HOH 104 3 HOH HOH 244 B HOH 107 3 HOH HOH 245 B HOH 111 3 HOH HOH 246 B HOH 117 3 HOH HOH 247 B HOH 118 3 HOH HOH 248 B HOH 122 3 HOH HOH 249 B n 1 1 A n 2 2 A n 3 3 A SER 4 n 4 SER 4 A SER 5 n 5 SER 5 A SER 6 n 6 SER 6 A THR 7 n 7 THR 7 A LYS 8 n 8 LYS 8 A LYS 9 n 9 LYS 9 A THR 10 n 10 THR 10 A GLN 11 n 11 GLN 11 A LEU 12 n 12 LEU 12 A GLN 13 n 13 GLN 13 A LEU 14 n 14 LEU 14 A GLU 15 n 15 GLU 15 A HIS 16 n 16 HIS 16 A LEU 17 n 17 LEU 17 A LEU 18 n 18 LEU 18 A LEU 19 n 19 LEU 19 A ASP 20 n 20 ASP 20 A LEU 21 n 21 LEU 21 A GLN 22 n 22 GLN 22 A MET 23 n 23 MET 23 A ILE 24 n 24 ILE 24 A LEU 25 n 25 LEU 25 A ASN 26 n 26 ASN 26 A GLY 27 n 27 GLY 27 A ILE 28 n 28 ILE 28 A ASN 29 n 29 ASN 29 A ASN 30 n 30 ASN 30 A TYR 31 n 31 TYR 31 A LYS 32 n 32 LYS 32 A ASN 33 n 33 ASN 33 A PRO 34 n 34 PRO 34 A LYS 35 n 35 LYS 35 A LEU 36 n 36 LEU 36 A THR 37 n 37 THR 37 A ARG 38 n 38 ARG 38 A MET 39 n 39 MET 39 A LEU 40 n 40 LEU 40 A THR 41 n 41 THR 41 A PHE 42 n 42 PHE 42 A LYS 43 n 43 LYS 43 A PHE 44 n 44 PHE 44 A TYR 45 n 45 TYR 45 A MET 46 n 46 MET 46 A PRO 47 n 47 PRO 47 A LYS 48 n 48 LYS 48 A LYS 49 n 49 LYS 49 A ALA 50 n 50 ALA 50 A THR 51 n 51 THR 51 A GLU 52 n 52 GLU 52 A LEU 53 n 53 LEU 53 A LYS 54 n 54 LYS 54 A HIS 55 n 55 HIS 55 A LEU 56 n 56 LEU 56 A GLN 57 n 57 GLN 57 A CYS 58 n 58 CYS 58 A LEU 59 n 59 LEU 59 A GLU 60 n 60 GLU 60 A GLU 61 n 61 GLU 61 A GLU 62 n 62 GLU 62 A LEU 63 n 63 LEU 63 A LYS 64 n 64 LYS 64 A PRO 65 n 65 PRO 65 A LEU 66 n 66 LEU 66 A GLU 67 n 67 GLU 67 A GLU 68 n 68 GLU 68 A VAL 69 n 69 VAL 69 A LEU 70 n 70 LEU 70 A ASN 71 n 71 ASN 71 A LEU 72 n 72 LEU 72 A ALA 73 n 73 ALA 73 A GLN 74 n 74 GLN 74 A n 75 75 A n 76 76 A n 77 77 A n 78 78 A n 79 79 A n 80 80 A ALA 81 n 81 ARG 81 A PRO 82 n 82 PRO 82 A ARG 83 n 83 ARG 83 A ASP 84 n 84 ASP 84 A LEU 85 n 85 LEU 85 A ILE 86 n 86 ILE 86 A SER 87 n 87 SER 87 A ASN 88 n 88 ASN 88 A ILE 89 n 89 ILE 89 A ASN 90 n 90 ASN 90 A VAL 91 n 91 VAL 91 A ILE 92 n 92 ILE 92 A VAL 93 n 93 VAL 93 A LEU 94 n 94 LEU 94 A GLU 95 n 95 GLU 95 A LEU 96 n 96 LEU 96 A LYS 97 n 97 LYS 97 A GLY 98 n 98 GLY 98 A SER 99 n 99 SER 99 A GLU 100 n 100 GLU 100 A THR 101 n 101 THR 101 A THR 102 n 102 THR 102 A PHE 103 n 103 PHE 103 A MET 104 n 104 MET 104 A CYS 105 n 105 CYS 105 A GLU 106 n 106 GLU 106 A TYR 107 n 107 TYR 107 A ALA 108 n 108 ALA 108 A ASP 109 n 109 ASP 109 A GLU 110 n 110 GLU 110 A THR 111 n 111 THR 111 A ALA 112 n 112 ALA 112 A THR 113 n 113 THR 113 A ILE 114 n 114 ILE 114 A VAL 115 n 115 VAL 115 A GLU 116 n 116 GLU 116 A PHE 117 n 117 PHE 117 A LEU 118 n 118 LEU 118 A ASN 119 n 119 ASN 119 A ARG 120 n 120 ARG 120 A TRP 121 n 121 TRP 121 A ILE 122 n 122 ILE 122 A THR 123 n 123 THR 123 A PHE 124 n 124 PHE 124 A CYS 125 n 125 CYS 125 A GLN 126 n 126 GLN 126 A SER 127 n 127 SER 127 A ILE 128 n 128 ILE 128 A ILE 129 n 129 ILE 129 A SER 130 n 130 SER 130 A THR 131 n 131 THR 131 A LEU 132 n 132 LEU 132 A n 133 133 A n 1 1 B n 2 2 B n 3 3 B SER 4 n 4 SER 4 B SER 5 n 5 SER 5 B SER 6 n 6 SER 6 B THR 7 n 7 THR 7 B LYS 8 n 8 LYS 8 B LYS 9 n 9 LYS 9 B THR 10 n 10 THR 10 B GLN 11 n 11 GLN 11 B LEU 12 n 12 LEU 12 B GLN 13 n 13 GLN 13 B LEU 14 n 14 LEU 14 B GLU 15 n 15 GLU 15 B HIS 16 n 16 HIS 16 B LEU 17 n 17 LEU 17 B LEU 18 n 18 LEU 18 B LEU 19 n 19 LEU 19 B ASP 20 n 20 ASP 20 B LEU 21 n 21 LEU 21 B GLN 22 n 22 GLN 22 B MET 23 n 23 MET 23 B ILE 24 n 24 ILE 24 B LEU 25 n 25 LEU 25 B ASN 26 n 26 ASN 26 B GLY 27 n 27 GLY 27 B ILE 28 n 28 ILE 28 B ASN 29 n 29 ASN 29 B n 30 30 B n 31 31 B n 32 32 B n 33 33 B PRO 34 n 34 PRO 34 B LYS 35 n 35 LYS 35 B LEU 36 n 36 LEU 36 B THR 37 n 37 THR 37 B ARG 38 n 38 ARG 38 B MET 39 n 39 MET 39 B LEU 40 n 40 LEU 40 B THR 41 n 41 THR 41 B PHE 42 n 42 PHE 42 B LYS 43 n 43 LYS 43 B PHE 44 n 44 PHE 44 B TYR 45 n 45 TYR 45 B MET 46 n 46 MET 46 B PRO 47 n 47 PRO 47 B LYS 48 n 48 LYS 48 B LYS 49 n 49 LYS 49 B ALA 50 n 50 ALA 50 B THR 51 n 51 THR 51 B GLU 52 n 52 GLU 52 B LEU 53 n 53 LEU 53 B LYS 54 n 54 LYS 54 B HIS 55 n 55 HIS 55 B LEU 56 n 56 LEU 56 B GLN 57 n 57 GLN 57 B CYS 58 n 58 CYS 58 B LEU 59 n 59 LEU 59 B GLU 60 n 60 GLU 60 B GLU 61 n 61 GLU 61 B GLU 62 n 62 GLU 62 B LEU 63 n 63 LEU 63 B LYS 64 n 64 LYS 64 B PRO 65 n 65 PRO 65 B LEU 66 n 66 LEU 66 B GLU 67 n 67 GLU 67 B GLU 68 n 68 GLU 68 B VAL 69 n 69 VAL 69 B LEU 70 n 70 LEU 70 B ASN 71 n 71 ASN 71 B LEU 72 n 72 LEU 72 B ALA 73 n 73 ALA 73 B GLN 74 n 74 GLN 74 B SER 75 n 75 SER 75 B n 76 76 B n 77 77 B n 78 78 B n 79 79 B n 80 80 B ARG 81 n 81 ARG 81 B PRO 82 n 82 PRO 82 B ARG 83 n 83 ARG 83 B ASP 84 n 84 ASP 84 B LEU 85 n 85 LEU 85 B ILE 86 n 86 ILE 86 B SER 87 n 87 SER 87 B ASN 88 n 88 ASN 88 B ILE 89 n 89 ILE 89 B ASN 90 n 90 ASN 90 B VAL 91 n 91 VAL 91 B ILE 92 n 92 ILE 92 B VAL 93 n 93 VAL 93 B LEU 94 n 94 LEU 94 B GLU 95 n 95 GLU 95 B LEU 96 n 96 LEU 96 B LYS 97 n 97 LYS 97 B n 98 98 B n 99 99 B n 100 100 B n 101 101 B THR 102 n 102 THR 102 B PHE 103 n 103 PHE 103 B MET 104 n 104 MET 104 B CYS 105 n 105 CYS 105 B GLU 106 n 106 GLU 106 B TYR 107 n 107 TYR 107 B ALA 108 n 108 ALA 108 B ASP 109 n 109 ASP 109 B GLU 110 n 110 GLU 110 B THR 111 n 111 THR 111 B ALA 112 n 112 ALA 112 B THR 113 n 113 THR 113 B ILE 114 n 114 ILE 114 B VAL 115 n 115 VAL 115 B GLU 116 n 116 GLU 116 B PHE 117 n 117 PHE 117 B LEU 118 n 118 LEU 118 B ASN 119 n 119 ASN 119 B ARG 120 n 120 ARG 120 B TRP 121 n 121 TRP 121 B ILE 122 n 122 ILE 122 B THR 123 n 123 THR 123 B PHE 124 n 124 PHE 124 B CYS 125 n 125 CYS 125 B GLN 126 n 126 GLN 126 B SER 127 n 127 SER 127 B ILE 128 n 128 ILE 128 B ILE 129 n 129 ILE 129 B SER 130 n 130 SER 130 B THR 131 n 131 THR 131 B LEU 132 n 132 LEU 132 B THR 133 n 133 THR 133 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 1 A CG ARG 81 A CG ARG 81 1 Y 1 A CD ARG 81 A CD ARG 81 1 Y 1 A NE ARG 81 A NE ARG 81 1 Y 1 A CZ ARG 81 A CZ ARG 81 1 Y 1 A NH1 ARG 81 A NH1 ARG 81 1 Y 1 A NH2 ARG 81 A NH2 ARG 81 1 Y 1 A ALA 1 A ALA 1 1 Y 1 A PRO 2 A PRO 2 1 Y 1 A THR 3 A THR 3 1 Y 1 A SER 75 A SER 75 1 Y 1 A LYS 76 A LYS 76 1 Y 1 A ASN 77 A ASN 77 1 Y 1 A PHE 78 A PHE 78 1 Y 1 A HIS 79 A HIS 79 1 Y 1 A LEU 80 A LEU 80 1 Y 1 A THR 133 A THR 133 1 Y 1 B ALA 1 B ALA 1 1 Y 1 B PRO 2 B PRO 2 1 Y 1 B THR 3 B THR 3 1 Y 1 B ASN 30 B ASN 30 1 Y 1 B TYR 31 B TYR 31 1 Y 1 B LYS 32 B LYS 32 1 Y 1 B ASN 33 B ASN 33 1 Y 1 B LYS 76 B LYS 76 1 Y 1 B ASN 77 B ASN 77 1 Y 1 B PHE 78 B PHE 78 1 Y 1 B HIS 79 B HIS 79 1 Y 1 B LEU 80 B LEU 80 1 Y 1 B GLY 98 B GLY 98 1 Y 1 B SER 99 B SER 99 1 Y 1 B GLU 100 B GLU 100 1 Y 1 B THR 101 B THR 101 1 Y 1 B B NE2 O HIS HOH 16 232 2.05 1 A B OD1 O ASP HOH 20 232 2.16 1 A A NH2 OE1 ARG GLU 83 110 2.01 1_555 4_455 1 A THR 51 -140.11 -3.31 1 B LEU 132 -108.16 40.29 38.381 0.62 0.00 0.00 0.94 0.00 -1.57 0.27841 0.22285 0.22556 0.22556 2.0 10.00 866 16549 16549 5.0 89.6 2.65307 0.07540 RANDOM 1 isotropic THROUGHOUT 0.0 0 MOLECULAR REPLACEMENT 0.24266 0.21094 0.80 0.80 1.40 MAXIMUM LIKELIHOOD 2.0 10.00 104 2134 82 0 1948 0.006 0.022 1.254 2.032 0.074 0.200 0.003 0.020 2.083 2.500 4.873 5.00 3.223 2.50 5.130 5.000 0.328 0.268 2.067 82 1700 92.8 33.6 2.0 10.0 1M49 19589 19589 0 0 0.042 0.042 1 24.7 4.0 99.2 0.228 2.00 2.06 7.7 1778 0.228 3.4 92.8 data reduction d*TREK phasing AMoRE refinement REFMAC data scaling d*TREK interleukin-2 Crystal Structure of Human Interleukin-2 Complexed with SP-1985 1 N N 1 N N 2 N N 2 N N 3 N N 3 N N A SER 4 A SER 4 HELX_P A ASN 29 A ASN 29 1 1 26 A LYS 32 A LYS 32 HELX_P A THR 41 A THR 41 1 2 10 A GLU 52 A GLU 52 HELX_P A HIS 55 A HIS 55 5 3 4 A LEU 56 A LEU 56 HELX_P A GLU 61 A GLU 61 1 4 6 A GLU 62 A GLU 62 HELX_P A ALA 73 A ALA 73 1 5 12 A ARG 81 A ARG 81 HELX_P A GLY 98 A GLY 98 1 6 18 A THR 113 A THR 113 HELX_P A LEU 132 A LEU 132 1 7 20 B SER 4 B SER 4 HELX_P B ASN 29 B ASN 29 1 8 26 B LYS 35 B LYS 35 HELX_P B LEU 40 B LEU 40 1 9 6 B GLU 52 B GLU 52 HELX_P B HIS 55 B HIS 55 5 10 4 B LEU 56 B LEU 56 HELX_P B GLU 61 B GLU 61 1 11 6 B GLU 62 B GLU 62 HELX_P B ALA 73 B ALA 73 1 12 12 B ARG 81 B ARG 81 HELX_P B LYS 97 B LYS 97 1 13 17 B THR 113 B THR 113 HELX_P B LEU 132 B LEU 132 1 14 20 disulf 2.022 A CYS 58 A SG CYS 58 1_555 A CYS 105 A SG CYS 105 1_555 disulf 2.025 B CYS 58 B SG CYS 58 1_555 B CYS 105 B SG CYS 105 1_555 CYTOKINE cytokine, four-helix bundle, small molecule complex IL2_HUMAN UNP 1 21 P60568 APTSSSTKKTQLQLEHLLLDLQMILNGINNYKNPKLTRMLTFKFYMPKKATELKHLQCLEEELKPLEEVLNLAQSKNFHL RPRDLISNINVIVLELKGSETTFMCEYADETATIVEFLNRWITFCQSIISTLT 21 153 1M49 1 133 P60568 A 1 1 133 21 153 1M49 1 133 P60568 B 1 1 133 BINDING SITE FOR RESIDUE CMM A 201 Software 17 BINDING SITE FOR RESIDUE CMM B 202 Software 18 A LYS 35 A LYS 35 17 1_555 A ARG 38 A ARG 38 17 1_555 A MET 39 A MET 39 17 1_555 A THR 41 A THR 41 17 1_555 A PHE 42 A PHE 42 17 1_555 A LYS 43 A LYS 43 17 1_555 A TYR 45 A TYR 45 17 1_555 A THR 51 A THR 51 17 4_455 A GLU 62 A GLU 62 17 1_555 A PRO 65 A PRO 65 17 1_555 A ALA 73 A ALA 73 17 1_555 A GLN 126 A GLN 126 17 4_455 A SER 127 A SER 127 17 4_455 A SER 130 A SER 130 17 4_455 A HOH 208 E HOH 17 4_455 A HOH 240 E HOH 17 1_555 A HOH 248 E HOH 17 4_455 A GLU 60 A GLU 60 18 3_545 A LYS 64 A LYS 64 18 3_545 A GLU 67 A GLU 67 18 3_545 A ARG 83 A ARG 83 18 3_545 A ILE 86 A ILE 86 18 3_545 A SER 87 A SER 87 18 3_545 A ASN 90 A ASN 90 18 3_545 A VAL 91 A VAL 91 18 3_545 B ARG 38 B ARG 38 18 1_555 B THR 41 B THR 41 18 1_555 B PHE 42 B PHE 42 18 1_555 B LYS 43 B LYS 43 18 1_555 B TYR 45 B TYR 45 18 1_555 B GLU 62 B GLU 62 18 1_555 B PRO 65 B PRO 65 18 1_555 B LEU 72 B LEU 72 18 1_555 B HOH 228 F HOH 18 1_555 B HOH 229 F HOH 18 1_555 19 P 21 21 21