1XCB - Sequence, Chains, Asymmetric and Biological Units

• Title: X-RAY STRUCTURE OF A REX-FAMILY REPRESSOR/NADH COMPLEX FROM AQUATICUS
• Keywords: REDOX-SENSING, WINGED HELIX, ROSSMANN FOLD, NICOTINAMIDE ADE DINUCLEOTIDE, NAD, REX, THERMUS AQUATICUS, NEW YORK SGX RES CENTER FOR STRUCTURAL GENOMICS, NYSGXRC, STRUCTURAL GENOMIC PROTEIN STRUCTURE INITIATIVE, DNA BINDING PROTEIN
• Experiment: X-ray diffraction
• Number of Models: 1

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

Asymmetric unit from PDB

Unit	Type	Name	Chain ID	Residues	Atoms	Hetatoms
1	Protein	REDOX-SENSING TRANSCRIPTIONAL REPRESSOR REX	A	205	1583	8
2	Protein	REDOX-SENSING TRANSCRIPTIONAL REPRESSOR REX	B	197	1522	8
3	Protein	REDOX-SENSING TRANSCRIPTIONAL REPRESSOR REX	C	203	1558	8
4	Protein	REDOX-SENSING TRANSCRIPTIONAL REPRESSOR REX	D	197	1523	8
5	Protein	REDOX-SENSING TRANSCRIPTIONAL REPRESSOR REX	E	203	1549	16
6	Protein	REDOX-SENSING TRANSCRIPTIONAL REPRESSOR REX	F	200	1550	8
7	Protein	REDOX-SENSING TRANSCRIPTIONAL REPRESSOR REX	G	192	1478	8
8	Ligand	REDOX-SENSING TRANSCRIPTIONAL REPRESSOR REX	A	2	0	45
9	Ligand	REDOX-SENSING TRANSCRIPTIONAL REPRESSOR REX	B	2	0	45
10	Ligand	REDOX-SENSING TRANSCRIPTIONAL REPRESSOR REX	C	2	0	45
11	Ligand	REDOX-SENSING TRANSCRIPTIONAL REPRESSOR REX	D	3	0	46
12	Ligand	REDOX-SENSING TRANSCRIPTIONAL REPRESSOR REX	E	1	0	44
13	Ligand	REDOX-SENSING TRANSCRIPTIONAL REPRESSOR REX	F	1	0	44
14	Ligand	REDOX-SENSING TRANSCRIPTIONAL REPRESSOR REX	G	1	0	44
total				1409	10763	377

Proteins

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

Ligands

Unit 8	CA 212 NAD 213
Unit 9	CA 212 NAD 213
Unit 10	CA 212 NAD 213
Unit 11	CA 212 CA 213 NAD 214
Unit 12	NAD 212
Unit 13	NAD 212
Unit 14	NAD 212