1XX1 - Sequence, Chains, Asymmetric and Biological Units

• Title: STRUCTURAL BASIS FOR ION-COORDINATION AND THE CATALYTIC MECH SPHINGOMYELINASES D
• Keywords: QUICK CRYO-SOAKING, ACTIVITY, SMASE D, HYDROLASE
• Experiment: X-ray diffraction
• Number of Models: 1

Database	ID code	Status	Coordinate files
			Header	Asymmetric unit	Biological unit
PDB	1XX1	released	available	available	Quaternary Structure Server

Asymmetric unit from PDB

Unit	Type	Name	Chain ID	Residues	Atoms	Hetatoms
1	Protein	SPHINGOMYELINASE I	A	285	2269	0
2	Protein	SPHINGOMYELINASE I	B	285	2269	0
3	Protein	SPHINGOMYELINASE I	C	285	2269	0
4	Protein	SPHINGOMYELINASE I	D	285	2269	0
5	Ligand	SPHINGOMYELINASE I	A	8	0	46
6	Ligand	SPHINGOMYELINASE I	B	7	0	31
7	Ligand	SPHINGOMYELINASE I	C	8	0	46
8	Ligand	SPHINGOMYELINASE I	D	7	0	41
9	Water			1018	0	1018
total				2188	9076	1182

Proteins

Unit 1	ALA 1 ASP 2 ASN 3 ARG 4 ARG 5 PRO 6 ILE 7 TRP 8 ASN 9 LEU 10 ALA 11 HIS 12 MET 13 VAL 14 ASN 15 ALA 16 VAL 17 ALA 18 GLN 19 ILE 20 PRO 21 ASP 22 PHE 23 LEU 24 ASP 25 LEU 26 GLY 27 ALA 28 ASN 29 ALA 30 LEU 31 GLU 32 ALA 33 ASP 34 VAL 35 THR 36 PHE 37 LYS 38 GLY 39 SER 40 VAL 41 PRO 42 THR 43 TYR 44 THR 45 TYR 46 HIS 47 GLY 48 THR 49 PRO 50 CYS 51 ASP 52 PHE 53 GLY 54 ARG 55 ASP 56 CYS 57 ILE 58 ARG 59 TRP 60 GLU 61 TYR 62 PHE 63 ASN 64 VAL 65 PHE 66 LEU 67 LYS 68 THR 69 LEU 70 ARG 71 GLU 72 TYR 73 THR 74 THR 75 PRO 76 GLY 77 ASN 78 ALA 79 LYS 80 TYR 81 ARG 82 ASP 83 GLY 84 PHE 85 ILE 86 LEU 87 PHE 88 VAL 89 LEU 90 ASP 91 LEU 92 LYS 93 THR 94 GLY 95 SER 96 LEU 97 SER 98 ASN 99 ASP 100 GLN 101 VAL 102 ARG 103 PRO 104 ALA 105 GLY 106 GLU 107 ASN 108 VAL 109 ALA 110 LYS 111 GLU 112 LEU 113 LEU 114 GLN 115 ASN 116 TYR 117 TRP 118 ASN 119 ASN 120 GLY 121 ASN 122 ASN 123 GLY 124 GLY 125 ARG 126 ALA 127 TYR 128 VAL 129 VAL 130 LEU 131 SER 132 LEU 133 PRO 134 ASP 135 ILE 136 GLY 137 HIS 138 TYR 139 GLU 140 PHE 141 VAL 142 ARG 143 GLY 144 PHE 145 LYS 146 GLU 147 VAL 148 LEU 149 LYS 150 LYS 151 GLU 152 GLY 153 HIS 154 GLU 155 ASP 156 LEU 157 LEU 158 GLU 159 LYS 160 VAL 161 GLY 162 TYR 163 ASP 164 PHE 165 SER 166 GLY 167 PRO 168 TYR 169 LEU 170 PRO 171 SER 172 LEU 173 PRO 174 THR 175 LEU 176 ASP 177 ALA 178 THR 179 HIS 180 GLU 181 ALA 182 TYR 183 LYS 184 LYS 185 ALA 186 GLY 187 VAL 188 ASP 189 GLY 190 HIS 191 ILE 192 TRP 193 LEU 194 SER 195 ASP 196 GLY 197 LEU 198 THR 199 ASN 200 PHE 201 SER 202 PRO 203 LEU 204 GLY 205 ASP 206 MET 207 ALA 208 ARG 209 LEU 210 LYS 211 GLU 212 ALA 213 ILE 214 LYS 215 SER 216 ARG 217 ASP 218 SER 219 ALA 220 ASN 221 GLY 222 PHE 223 ILE 224 ASN 225 LYS 226 ILE 227 TYR 228 TYR 229 TRP 230 SER 231 VAL 232 ASP 233 LYS 234 VAL 235 SER 236 THR 237 THR 238 LYS 239 ALA 240 ALA 241 LEU 242 ASP 243 VAL 244 GLY 245 VAL 246 ASP 247 GLY 248 ILE 249 MET 250 THR 251 ASN 252 TYR 253 PRO 254 ASN 255 VAL 256 LEU 257 ILE 258 GLY 259 VAL 260 LEU 261 LYS 262 GLU 263 SER 264 GLY 265 TYR 266 ASN 267 ASP 268 LYS 269 TYR 270 ARG 271 LEU 272 ALA 273 THR 274 TYR 275 ASP 276 ASP 277 ASN 278 PRO 279 TRP 280 GLU 281 THR 282 PHE 283 LYS 284 ASN 285
Unit 2	ALA 1 ASP 2 ASN 3 ARG 4 ARG 5 PRO 6 ILE 7 TRP 8 ASN 9 LEU 10 ALA 11 HIS 12 MET 13 VAL 14 ASN 15 ALA 16 VAL 17 ALA 18 GLN 19 ILE 20 PRO 21 ASP 22 PHE 23 LEU 24 ASP 25 LEU 26 GLY 27 ALA 28 ASN 29 ALA 30 LEU 31 GLU 32 ALA 33 ASP 34 VAL 35 THR 36 PHE 37 LYS 38 GLY 39 SER 40 VAL 41 PRO 42 THR 43 TYR 44 THR 45 TYR 46 HIS 47 GLY 48 THR 49 PRO 50 CYS 51 ASP 52 PHE 53 GLY 54 ARG 55 ASP 56 CYS 57 ILE 58 ARG 59 TRP 60 GLU 61 TYR 62 PHE 63 ASN 64 VAL 65 PHE 66 LEU 67 LYS 68 THR 69 LEU 70 ARG 71 GLU 72 TYR 73 THR 74 THR 75 PRO 76 GLY 77 ASN 78 ALA 79 LYS 80 TYR 81 ARG 82 ASP 83 GLY 84 PHE 85 ILE 86 LEU 87 PHE 88 VAL 89 LEU 90 ASP 91 LEU 92 LYS 93 THR 94 GLY 95 SER 96 LEU 97 SER 98 ASN 99 ASP 100 GLN 101 VAL 102 ARG 103 PRO 104 ALA 105 GLY 106 GLU 107 ASN 108 VAL 109 ALA 110 LYS 111 GLU 112 LEU 113 LEU 114 GLN 115 ASN 116 TYR 117 TRP 118 ASN 119 ASN 120 GLY 121 ASN 122 ASN 123 GLY 124 GLY 125 ARG 126 ALA 127 TYR 128 VAL 129 VAL 130 LEU 131 SER 132 LEU 133 PRO 134 ASP 135 ILE 136 GLY 137 HIS 138 TYR 139 GLU 140 PHE 141 VAL 142 ARG 143 GLY 144 PHE 145 LYS 146 GLU 147 VAL 148 LEU 149 LYS 150 LYS 151 GLU 152 GLY 153 HIS 154 GLU 155 ASP 156 LEU 157 LEU 158 GLU 159 LYS 160 VAL 161 GLY 162 TYR 163 ASP 164 PHE 165 SER 166 GLY 167 PRO 168 TYR 169 LEU 170 PRO 171 SER 172 LEU 173 PRO 174 THR 175 LEU 176 ASP 177 ALA 178 THR 179 HIS 180 GLU 181 ALA 182 TYR 183 LYS 184 LYS 185 ALA 186 GLY 187 VAL 188 ASP 189 GLY 190 HIS 191 ILE 192 TRP 193 LEU 194 SER 195 ASP 196 GLY 197 LEU 198 THR 199 ASN 200 PHE 201 SER 202 PRO 203 LEU 204 GLY 205 ASP 206 MET 207 ALA 208 ARG 209 LEU 210 LYS 211 GLU 212 ALA 213 ILE 214 LYS 215 SER 216 ARG 217 ASP 218 SER 219 ALA 220 ASN 221 GLY 222 PHE 223 ILE 224 ASN 225 LYS 226 ILE 227 TYR 228 TYR 229 TRP 230 SER 231 VAL 232 ASP 233 LYS 234 VAL 235 SER 236 THR 237 THR 238 LYS 239 ALA 240 ALA 241 LEU 242 ASP 243 VAL 244 GLY 245 VAL 246 ASP 247 GLY 248 ILE 249 MET 250 THR 251 ASN 252 TYR 253 PRO 254 ASN 255 VAL 256 LEU 257 ILE 258 GLY 259 VAL 260 LEU 261 LYS 262 GLU 263 SER 264 GLY 265 TYR 266 ASN 267 ASP 268 LYS 269 TYR 270 ARG 271 LEU 272 ALA 273 THR 274 TYR 275 ASP 276 ASP 277 ASN 278 PRO 279 TRP 280 GLU 281 THR 282 PHE 283 LYS 284 ASN 285
Unit 3	ALA 1 ASP 2 ASN 3 ARG 4 ARG 5 PRO 6 ILE 7 TRP 8 ASN 9 LEU 10 ALA 11 HIS 12 MET 13 VAL 14 ASN 15 ALA 16 VAL 17 ALA 18 GLN 19 ILE 20 PRO 21 ASP 22 PHE 23 LEU 24 ASP 25 LEU 26 GLY 27 ALA 28 ASN 29 ALA 30 LEU 31 GLU 32 ALA 33 ASP 34 VAL 35 THR 36 PHE 37 LYS 38 GLY 39 SER 40 VAL 41 PRO 42 THR 43 TYR 44 THR 45 TYR 46 HIS 47 GLY 48 THR 49 PRO 50 CYS 51 ASP 52 PHE 53 GLY 54 ARG 55 ASP 56 CYS 57 ILE 58 ARG 59 TRP 60 GLU 61 TYR 62 PHE 63 ASN 64 VAL 65 PHE 66 LEU 67 LYS 68 THR 69 LEU 70 ARG 71 GLU 72 TYR 73 THR 74 THR 75 PRO 76 GLY 77 ASN 78 ALA 79 LYS 80 TYR 81 ARG 82 ASP 83 GLY 84 PHE 85 ILE 86 LEU 87 PHE 88 VAL 89 LEU 90 ASP 91 LEU 92 LYS 93 THR 94 GLY 95 SER 96 LEU 97 SER 98 ASN 99 ASP 100 GLN 101 VAL 102 ARG 103 PRO 104 ALA 105 GLY 106 GLU 107 ASN 108 VAL 109 ALA 110 LYS 111 GLU 112 LEU 113 LEU 114 GLN 115 ASN 116 TYR 117 TRP 118 ASN 119 ASN 120 GLY 121 ASN 122 ASN 123 GLY 124 GLY 125 ARG 126 ALA 127 TYR 128 VAL 129 VAL 130 LEU 131 SER 132 LEU 133 PRO 134 ASP 135 ILE 136 GLY 137 HIS 138 TYR 139 GLU 140 PHE 141 VAL 142 ARG 143 GLY 144 PHE 145 LYS 146 GLU 147 VAL 148 LEU 149 LYS 150 LYS 151 GLU 152 GLY 153 HIS 154 GLU 155 ASP 156 LEU 157 LEU 158 GLU 159 LYS 160 VAL 161 GLY 162 TYR 163 ASP 164 PHE 165 SER 166 GLY 167 PRO 168 TYR 169 LEU 170 PRO 171 SER 172 LEU 173 PRO 174 THR 175 LEU 176 ASP 177 ALA 178 THR 179 HIS 180 GLU 181 ALA 182 TYR 183 LYS 184 LYS 185 ALA 186 GLY 187 VAL 188 ASP 189 GLY 190 HIS 191 ILE 192 TRP 193 LEU 194 SER 195 ASP 196 GLY 197 LEU 198 THR 199 ASN 200 PHE 201 SER 202 PRO 203 LEU 204 GLY 205 ASP 206 MET 207 ALA 208 ARG 209 LEU 210 LYS 211 GLU 212 ALA 213 ILE 214 LYS 215 SER 216 ARG 217 ASP 218 SER 219 ALA 220 ASN 221 GLY 222 PHE 223 ILE 224 ASN 225 LYS 226 ILE 227 TYR 228 TYR 229 TRP 230 SER 231 VAL 232 ASP 233 LYS 234 VAL 235 SER 236 THR 237 THR 238 LYS 239 ALA 240 ALA 241 LEU 242 ASP 243 VAL 244 GLY 245 VAL 246 ASP 247 GLY 248 ILE 249 MET 250 THR 251 ASN 252 TYR 253 PRO 254 ASN 255 VAL 256 LEU 257 ILE 258 GLY 259 VAL 260 LEU 261 LYS 262 GLU 263 SER 264 GLY 265 TYR 266 ASN 267 ASP 268 LYS 269 TYR 270 ARG 271 LEU 272 ALA 273 THR 274 TYR 275 ASP 276 ASP 277 ASN 278 PRO 279 TRP 280 GLU 281 THR 282 PHE 283 LYS 284 ASN 285
Unit 4	ALA 1 ASP 2 ASN 3 ARG 4 ARG 5 PRO 6 ILE 7 TRP 8 ASN 9 LEU 10 ALA 11 HIS 12 MET 13 VAL 14 ASN 15 ALA 16 VAL 17 ALA 18 GLN 19 ILE 20 PRO 21 ASP 22 PHE 23 LEU 24 ASP 25 LEU 26 GLY 27 ALA 28 ASN 29 ALA 30 LEU 31 GLU 32 ALA 33 ASP 34 VAL 35 THR 36 PHE 37 LYS 38 GLY 39 SER 40 VAL 41 PRO 42 THR 43 TYR 44 THR 45 TYR 46 HIS 47 GLY 48 THR 49 PRO 50 CYS 51 ASP 52 PHE 53 GLY 54 ARG 55 ASP 56 CYS 57 ILE 58 ARG 59 TRP 60 GLU 61 TYR 62 PHE 63 ASN 64 VAL 65 PHE 66 LEU 67 LYS 68 THR 69 LEU 70 ARG 71 GLU 72 TYR 73 THR 74 THR 75 PRO 76 GLY 77 ASN 78 ALA 79 LYS 80 TYR 81 ARG 82 ASP 83 GLY 84 PHE 85 ILE 86 LEU 87 PHE 88 VAL 89 LEU 90 ASP 91 LEU 92 LYS 93 THR 94 GLY 95 SER 96 LEU 97 SER 98 ASN 99 ASP 100 GLN 101 VAL 102 ARG 103 PRO 104 ALA 105 GLY 106 GLU 107 ASN 108 VAL 109 ALA 110 LYS 111 GLU 112 LEU 113 LEU 114 GLN 115 ASN 116 TYR 117 TRP 118 ASN 119 ASN 120 GLY 121 ASN 122 ASN 123 GLY 124 GLY 125 ARG 126 ALA 127 TYR 128 VAL 129 VAL 130 LEU 131 SER 132 LEU 133 PRO 134 ASP 135 ILE 136 GLY 137 HIS 138 TYR 139 GLU 140 PHE 141 VAL 142 ARG 143 GLY 144 PHE 145 LYS 146 GLU 147 VAL 148 LEU 149 LYS 150 LYS 151 GLU 152 GLY 153 HIS 154 GLU 155 ASP 156 LEU 157 LEU 158 GLU 159 LYS 160 VAL 161 GLY 162 TYR 163 ASP 164 PHE 165 SER 166 GLY 167 PRO 168 TYR 169 LEU 170 PRO 171 SER 172 LEU 173 PRO 174 THR 175 LEU 176 ASP 177 ALA 178 THR 179 HIS 180 GLU 181 ALA 182 TYR 183 LYS 184 LYS 185 ALA 186 GLY 187 VAL 188 ASP 189 GLY 190 HIS 191 ILE 192 TRP 193 LEU 194 SER 195 ASP 196 GLY 197 LEU 198 THR 199 ASN 200 PHE 201 SER 202 PRO 203 LEU 204 GLY 205 ASP 206 MET 207 ALA 208 ARG 209 LEU 210 LYS 211 GLU 212 ALA 213 ILE 214 LYS 215 SER 216 ARG 217 ASP 218 SER 219 ALA 220 ASN 221 GLY 222 PHE 223 ILE 224 ASN 225 LYS 226 ILE 227 TYR 228 TYR 229 TRP 230 SER 231 VAL 232 ASP 233 LYS 234 VAL 235 SER 236 THR 237 THR 238 LYS 239 ALA 240 ALA 241 LEU 242 ASP 243 VAL 244 GLY 245 VAL 246 ASP 247 GLY 248 ILE 249 MET 250 THR 251 ASN 252 TYR 253 PRO 254 ASN 255 VAL 256 LEU 257 ILE 258 GLY 259 VAL 260 LEU 261 LYS 262 GLU 263 SER 264 GLY 265 TYR 266 ASN 267 ASP 268 LYS 269 TYR 270 ARG 271 LEU 272 ALA 273 THR 274 TYR 275 ASP 276 ASP 277 ASN 278 PRO 279 TRP 280 GLU 281 THR 282 PHE 283 LYS 284 ASN 285

Ligands

Unit 5	EPE 2001 SO4 3001 SO4 4001 SO4 5001 SO4 6001 SO4 7001 SO4 8001 MG 9001
Unit 6	SO4 3002 SO4 4002 SO4 5002 SO4 6002 SO4 7002 SO4 8002 MG 9002
Unit 7	EPE 2003 SO4 3003 SO4 4003 SO4 5003 SO4 6003 SO4 7003 SO4 8003 MG 9003
Unit 8	EPE 2004 SO4 3004 SO4 5004 SO4 6004 SO4 7004 SO4 8004 MG 9004