3U54 - Sequence, Chains, Asymmetric and Biological Units

• Title: CRYSTAL STRUCTURE (TYPE-1) OF SAICAR SYNTHETASE FROM PYROCOC HORIKOSHII OT3
• Keywords: SAICAR SYNTHETASE-LIKE FOLD, LIGASE, ATP-BINDING, PHOSPHORIBOSYLAMINOIMIDAZOLE-SUCCINOCARBOXAMIDE SYNTHETASE, NOVO PURINE BIOSYNTHESIS, LIGATION OF CARBOXY AND AMINE GRO
• Experiment: X-ray diffraction
• Number of Models: 1

Database	ID code	Status	Coordinate files
			Header	Asymmetric unit	Biological unit
PDB	3U54	released	available	available	Quaternary Structure Server

Asymmetric unit from PDB

Unit	Type	Name	Chain ID	Residues	Atoms	Hetatoms
1	Protein		A	225	1745	24
2	Protein		B	225	1736	24
3	Ligand		A	9	0	22
4	Ligand		B	9	0	20
5	Water			165	0	165
total				633	3481	255

Proteins

Unit 1

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

Unit 2

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

Ligands

Unit 3	CD 400 CD 401 CD 402 CD 403 CD 404 CD 405 BU1 410 SO4 420 SO4 421
Unit 4	CD 401 CD 402 CD 403 CD 404 CD 405 CD 406 SO4 420 SO4 421 ACT 430