3E8L - Sequence, Chains, Asymmetric and Biological Units

• Title: THE CRYSTAL STRUCTURE OF THE DOUBLE-HEADED ARROWHEAD PROTEAS INHIBITOR A IN COMPLEX WITH TWO TRYPSINS
• Keywords: BETA-TREFOIL FOLD, PROTEASE INHIBITOR, TRYPSIN, COMPLEX, DIG HYDROLASE, METAL-BINDING, PROTEASE, SECRETED, SERINE PROTEA ZYMOGEN, HYDROLASE INHIBITOR-HYDROLASE COMPLEX
• Experiment: X-ray diffraction
• Number of Models: 1

Database	ID code	Status	Coordinate files
			Header	Asymmetric unit	Biological unit
PDB	3E8L	released	available	available	Quaternary Structure Server

Asymmetric unit from PDB

Unit	Type	Name	Chain ID	Residues	Atoms	Hetatoms
1	Protein	SERINE PROTEINASE INHIBITOR A	C	176	1342	0
2	Protein	CATIONIC TRYPSIN	A	223	1629	0
3	Protein	CATIONIC TRYPSIN	B	223	1628	0
4	Ligand	SERINE PROTEINASE INHIBITOR A	C	6	0	31
5	Ligand	CATIONIC TRYPSIN	A	13	0	35
6	Ligand	CATIONIC TRYPSIN	B	9	0	35
7	Water			160	0	160
total				810	4599	261

Proteins

Unit 1	PRO 2 VAL 3 VAL 4 ASP 5 SER 6 ASP 7 GLY 8 ASP 9 ALA 10 VAL 11 GLN 12 LEU 13 ASN 14 LEU 15 GLY 16 GLY 17 ASN 18 TYR 19 PRO 20 LEU 21 TYR 22 THR 23 ILE 24 GLN 25 SER 26 ALA 27 ALA 28 ILE 29 GLY 30 PHE 31 ARG 32 GLY 33 GLY 34 LEU 35 SER 36 THR 37 LEU 38 ARG 39 LYS 40 ASP 41 ALA 42 CYS 43 LYS 44 SER 45 TYR 46 VAL 47 TYR 48 GLU 49 ALA 50 PRO 51 GLU 52 THR 53 ASP 54 ARG 55 GLY 56 LEU 57 PRO 58 VAL 59 GLY 60 PHE 61 SER 62 ALA 63 SER 64 ALA 65 THR 66 SER 67 GLN 68 PRO 69 VAL 70 MET 71 GLN 72 LEU 73 GLY 74 SER 75 ARG 76 TYR 77 LYS 78 PHE 79 SER 80 PHE 81 SER 82 MET 83 PRO 84 VAL 85 PRO 86 LEU 87 ILE 88 CYS 89 ASP 90 THR 91 ALA 92 TRP 93 SER 94 ILE 95 GLY 96 LYS 97 SER 98 GLU 99 THR 100 ASN 101 GLY 102 GLY 103 ILE 104 SER 105 PHE 106 GLN 107 PRO 108 ILE 109 THR 110 ALA 111 GLY 112 ASP 113 TYR 114 PHE 115 TYR 116 LEU 117 ASN 118 ASN 119 PHE 120 SER 121 TRP 122 PHE 123 GLU 124 ALA 125 ARG 126 SER 127 THR 128 GLU 129 GLU 130 THR 131 GLY 132 VAL 133 TYR 134 LYS 135 LEU 136 ALA 137 ALA 138 CYS 139 SER 140 CYS 141 GLU 142 PHE 143 CYS 144 LYS 145 ILE 146 ALA 147 CYS 148 PRO 149 GLU 150 VAL 151 GLY 152 SER 153 PHE 154 ASN 155 VAL 156 ASN 157 GLY 158 ARG 159 THR 160 LEU 161 LEU 162 GLY 163 ILE 164 GLY 165 GLY 166 GLU 167 HIS 168 PHE 169 THR 170 VAL 171 GLN 172 PHE 173 GLN 174 LYS 175 PHE 176 ASP 177
Unit 2	ILE 16 VAL 17 GLY 18 GLY 19 TYR 20 THR 21 CYS 22 GLY 23 ALA 24 ASN 25 THR 26 VAL 27 PRO 28 TYR 29 GLN 30 VAL 31 SER 32 LEU 33 ASN 34 SER 35 GLY 36 TYR 37 HIS 38 PHE 39 CYS 40 GLY 41 GLY 42 SER 43 LEU 44 ILE 45 ASN 46 SER 47 GLN 48 TRP 49 VAL 50 VAL 51 SER 52 ALA 53 ALA 54 HIS 55 CYS 56 TYR 57 LYS 58 SER 59 GLY 60 ILE 61 GLN 62 VAL 63 ARG 64 LEU 65 GLY 66 GLU 67 ASP 68 ASN 69 ILE 70 ASN 71 VAL 72 VAL 73 GLU 74 GLY 75 ASN 76 GLU 77 GLN 78 PHE 79 ILE 80 SER 81 ALA 82 SER 83 LYS 84 SER 85 ILE 86 VAL 87 HIS 88 PRO 89 SER 90 TYR 91 ASN 92 SER 93 ASN 94 THR 95 LEU 96 ASN 97 ASN 98 ASP 99 ILE 100 MET 101 LEU 102 ILE 103 LYS 104 LEU 105 LYS 106 SER 107 ALA 108 ALA 109 SER 110 LEU 111 ASN 112 SER 113 ARG 114 VAL 115 ALA 116 SER 117 ILE 118 SER 119 LEU 120 PRO 121 THR 122 SER 123 CYS 124 ALA 125 SER 126 ALA 127 GLY 128 THR 129 GLN 130 CYS 131 LEU 132 ILE 133 SER 134 GLY 135 TRP 136 GLY 137 ASN 138 THR 139 LYS 140 SER 141 SER 142 GLY 143 THR 144 SER 145 TYR 146 PRO 147 ASP 148 VAL 149 LEU 150 LYS 151 CYS 152 LEU 153 LYS 154 ALA 155 PRO 156 ILE 157 LEU 158 SER 159 ASP 160 SER 161 SER 162 CYS 163 LYS 164 SER 165 ALA 166 TYR 167 PRO 168 GLY 169 GLN 170 ILE 171 THR 172 SER 173 ASN 174 MET 175 PHE 176 CYS 177 ALA 178 GLY 179 TYR 180 LEU 181 GLU 182 GLY 183 GLY 184 LYS 185 ASP 186 SER 187 CYS 188 GLN 189 GLY 190 ASP 191 SER 192 GLY 193 GLY 194 PRO 195 VAL 196 VAL 197 CYS 198 SER 199 GLY 200 LYS 201 LEU 202 GLN 203 GLY 204 ILE 205 VAL 206 SER 207 TRP 208 GLY 209 SER 210 GLY 211 CYS 212 ALA 213 GLN 214 LYS 215 ASN 216 LYS 217 PRO 218 GLY 219 VAL 220 TYR 221 THR 222 LYS 223 VAL 224 CYS 225 ASN 226 TYR 227 VAL 228 SER 229 TRP 230 ILE 231 LYS 232 GLN 233 THR 234 ILE 235 ALA 236 SER 237 ASN 238
Unit 3	ILE 16 VAL 17 GLY 18 GLY 19 TYR 20 THR 21 CYS 22 GLY 23 ALA 24 ASN 25 THR 26 VAL 27 PRO 28 TYR 29 GLN 30 VAL 31 SER 32 LEU 33 ASN 34 SER 35 GLY 36 TYR 37 HIS 38 PHE 39 CYS 40 GLY 41 GLY 42 SER 43 LEU 44 ILE 45 ASN 46 SER 47 GLN 48 TRP 49 VAL 50 VAL 51 SER 52 ALA 53 ALA 54 HIS 55 CYS 56 TYR 57 LYS 58 SER 59 GLY 60 ILE 61 GLN 62 VAL 63 ARG 64 LEU 65 GLY 66 GLU 67 ASP 68 ASN 69 ILE 70 ASN 71 VAL 72 VAL 73 GLU 74 GLY 75 ASN 76 GLU 77 GLN 78 PHE 79 ILE 80 SER 81 ALA 82 SER 83 LYS 84 SER 85 ILE 86 VAL 87 HIS 88 PRO 89 SER 90 TYR 91 ASN 92 SER 93 ASN 94 THR 95 LEU 96 ASN 97 ASN 98 ASP 99 ILE 100 MET 101 LEU 102 ILE 103 LYS 104 LEU 105 LYS 106 SER 107 ALA 108 ALA 109 SER 110 LEU 111 ASN 112 SER 113 ARG 114 VAL 115 ALA 116 SER 117 ILE 118 SER 119 LEU 120 PRO 121 THR 122 SER 123 CYS 124 ALA 125 SER 126 ALA 127 GLY 128 THR 129 GLN 130 CYS 131 LEU 132 ILE 133 SER 134 GLY 135 TRP 136 GLY 137 ASN 138 THR 139 LYS 140 SER 141 SER 142 GLY 143 THR 144 SER 145 TYR 146 PRO 147 ASP 148 VAL 149 LEU 150 LYS 151 CYS 152 LEU 153 LYS 154 ALA 155 PRO 156 ILE 157 LEU 158 SER 159 ASP 160 SER 161 SER 162 CYS 163 LYS 164 SER 165 ALA 166 TYR 167 PRO 168 GLY 169 GLN 170 ILE 171 THR 172 SER 173 ASN 174 MET 175 PHE 176 CYS 177 ALA 178 GLY 179 TYR 180 LEU 181 GLU 182 GLY 183 GLY 184 LYS 185 ASP 186 SER 187 CYS 188 GLN 189 GLY 190 ASP 191 SER 192 GLY 193 GLY 194 PRO 195 VAL 196 VAL 197 CYS 198 SER 199 GLY 200 LYS 201 LEU 202 GLN 203 GLY 204 ILE 205 VAL 206 SER 207 TRP 208 GLY 209 SER 210 GLY 211 CYS 212 ALA 213 GLN 214 LYS 215 ASN 216 LYS 217 PRO 218 GLY 219 VAL 220 TYR 221 THR 222 LYS 223 VAL 224 CYS 225 ASN 226 TYR 227 VAL 228 SER 229 TRP 230 ILE 231 LYS 232 GLN 233 THR 234 ILE 235 ALA 236 SER 237 ASN 238

Ligands

Unit 4	GOL 178 GOL 179 GOL 180 ACT 181 ACT 182 SO4 183
Unit 5	NA 1 GOL 2 NA 3 CA 4 CA 5 ACT 6 NA 7 CA 8 CA 9 CA 10 GOL 12 GOL 239 SO4 240
Unit 6	GOL 1 ACT 2 EDO 3 CA 6 EDO 7 EDO 8 CA 11 EDO 239 PEG 240