2BR8 - Sequence, Chains, Asymmetric and Biological Units

• Title: CRYSTAL STRUCTURE OF ACETYLCHOLINE-BINDING PROTEIN (ACHBP) FROM APLYSIA CALIFORNICA IN COMPLEX WITH AN ALPHA- CONOTOXIN PNIA VARIANT
• Keywords: RECEPTOR/INHIBITOR, RECEPTOR/INHIBITOR COMPLEX, GLYCOPROTEIN, IGG-FOLD, IMMUNOGLOBULIN DOMAIN, PENTAMER, NICOTINIC RECEPTOR, ALPHA-CONOTOXIN, RECEPTOR, ACETYLCHOLINE RECEPTOR INHIBITOR, AMIDATION, NEUROTOXIN, POSTSYNAPTIC NEUROTOXIN, SULFATION, TOXIN
• Experiment: X-ray diffraction
• Number of Models: 1

Database	ID code	Status	Coordinate files
			Header	Asymmetric unit	Biological unit
PDB	2BR8	released	available	available	Quaternary Structure Server

Asymmetric unit from PDB

Unit	Type	Name	Chain ID	Residues	Atoms	Hetatoms
1	Protein	SOLUBLE ACETYLCHOLINE RECEPTOR	A	205	1636	0
2	Protein	SOLUBLE ACETYLCHOLINE RECEPTOR	B	205	1636	0
3	Protein	SOLUBLE ACETYLCHOLINE RECEPTOR	C	205	1636	0
4	Protein	SOLUBLE ACETYLCHOLINE RECEPTOR	D	205	1636	0
5	Protein	SOLUBLE ACETYLCHOLINE RECEPTOR	E	205	1636	0
6	Protein	ALPHA-CONOTOXIN PNIA	F	17	113	1
7	Protein	ALPHA-CONOTOXIN PNIA	G	17	113	1
8	Protein	ALPHA-CONOTOXIN PNIA	H	17	113	1
9	Protein	ALPHA-CONOTOXIN PNIA	I	17	113	1
10	Protein	ALPHA-CONOTOXIN PNIA	J	17	113	1
11	Ligand	SOLUBLE ACETYLCHOLINE RECEPTOR	C	1	0	5
12	Ligand	SOLUBLE ACETYLCHOLINE RECEPTOR	E	1	0	5
13	Ligand	ALPHA-CONOTOXIN PNIA	F	1	0	5
14	Ligand	ALPHA-CONOTOXIN PNIA	G	1	0	5
15	Ligand	ALPHA-CONOTOXIN PNIA	I	1	0	5
16	Water			235	0	235
total				1350	8745	265

Proteins

Unit 1	GLN 1 ALA 2 ASN 3 LEU 4 MET 5 ARG 6 LEU 7 LYS 8 SER 9 ASP 10 LEU 11 PHE 12 ASN 13 ARG 14 SER 15 PRO 16 MET 17 TYR 18 PRO 19 GLY 20 PRO 21 THR 22 LYS 23 ASP 24 ASP 25 PRO 26 LEU 27 THR 28 VAL 29 THR 30 LEU 31 GLY 32 PHE 33 THR 34 LEU 35 GLN 36 ASP 37 ILE 38 VAL 39 LYS 40 VAL 41 ASP 42 SER 43 SER 44 THR 45 ASN 46 GLU 47 VAL 48 ASP 49 LEU 50 VAL 51 TYR 52 TYR 53 GLU 54 GLN 55 GLN 56 ARG 57 TRP 58 LYS 59 LEU 60 ASN 61 SER 62 LEU 63 MET 64 TRP 65 ASP 66 PRO 67 ASN 68 GLU 69 TYR 70 GLY 71 ASN 72 ILE 73 THR 74 ASP 75 PHE 76 ARG 77 THR 78 SER 79 ALA 80 ALA 81 ASP 82 ILE 83 TRP 84 THR 85 PRO 86 ASP 87 ILE 88 THR 89 ALA 90 TYR 91 SER 92 SER 93 THR 94 ARG 95 PRO 96 VAL 97 GLN 98 VAL 99 LEU 100 SER 101 PRO 102 GLN 103 ILE 104 ALA 105 VAL 106 VAL 107 THR 108 HIS 109 ASP 110 GLY 111 SER 112 VAL 113 MET 114 PHE 115 ILE 116 PRO 117 ALA 118 GLN 119 ARG 120 LEU 121 SER 122 PHE 123 MET 124 CYS 125 ASP 126 PRO 127 THR 128 GLY 129 VAL 130 ASP 131 SER 132 GLU 133 GLU 134 GLY 135 VAL 136 THR 137 CYS 138 ALA 139 VAL 140 LYS 141 PHE 142 GLY 143 SER 144 TRP 145 VAL 146 TYR 147 SER 148 GLY 149 PHE 150 GLU 151 ILE 152 ASP 153 LEU 154 LYS 155 THR 156 ASP 157 THR 158 ASP 159 GLN 160 VAL 161 ASP 162 LEU 163 SER 164 SER 165 TYR 166 TYR 167 ALA 168 SER 169 SER 170 LYS 171 TYR 172 GLU 173 ILE 174 LEU 175 SER 176 ALA 177 THR 178 GLN 179 THR 180 ARG 181 GLN 182 VAL 183 GLN 184 HIS 185 TYR 186 SER 187 CYS 188 CYS 189 PRO 190 GLU 191 PRO 192 TYR 193 ILE 194 ASP 195 VAL 196 ASN 197 LEU 198 VAL 199 VAL 200 LYS 201 PHE 202 ARG 203 GLU 204 ARG 205
Unit 2	GLN 1 ALA 2 ASN 3 LEU 4 MET 5 ARG 6 LEU 7 LYS 8 SER 9 ASP 10 LEU 11 PHE 12 ASN 13 ARG 14 SER 15 PRO 16 MET 17 TYR 18 PRO 19 GLY 20 PRO 21 THR 22 LYS 23 ASP 24 ASP 25 PRO 26 LEU 27 THR 28 VAL 29 THR 30 LEU 31 GLY 32 PHE 33 THR 34 LEU 35 GLN 36 ASP 37 ILE 38 VAL 39 LYS 40 VAL 41 ASP 42 SER 43 SER 44 THR 45 ASN 46 GLU 47 VAL 48 ASP 49 LEU 50 VAL 51 TYR 52 TYR 53 GLU 54 GLN 55 GLN 56 ARG 57 TRP 58 LYS 59 LEU 60 ASN 61 SER 62 LEU 63 MET 64 TRP 65 ASP 66 PRO 67 ASN 68 GLU 69 TYR 70 GLY 71 ASN 72 ILE 73 THR 74 ASP 75 PHE 76 ARG 77 THR 78 SER 79 ALA 80 ALA 81 ASP 82 ILE 83 TRP 84 THR 85 PRO 86 ASP 87 ILE 88 THR 89 ALA 90 TYR 91 SER 92 SER 93 THR 94 ARG 95 PRO 96 VAL 97 GLN 98 VAL 99 LEU 100 SER 101 PRO 102 GLN 103 ILE 104 ALA 105 VAL 106 VAL 107 THR 108 HIS 109 ASP 110 GLY 111 SER 112 VAL 113 MET 114 PHE 115 ILE 116 PRO 117 ALA 118 GLN 119 ARG 120 LEU 121 SER 122 PHE 123 MET 124 CYS 125 ASP 126 PRO 127 THR 128 GLY 129 VAL 130 ASP 131 SER 132 GLU 133 GLU 134 GLY 135 VAL 136 THR 137 CYS 138 ALA 139 VAL 140 LYS 141 PHE 142 GLY 143 SER 144 TRP 145 VAL 146 TYR 147 SER 148 GLY 149 PHE 150 GLU 151 ILE 152 ASP 153 LEU 154 LYS 155 THR 156 ASP 157 THR 158 ASP 159 GLN 160 VAL 161 ASP 162 LEU 163 SER 164 SER 165 TYR 166 TYR 167 ALA 168 SER 169 SER 170 LYS 171 TYR 172 GLU 173 ILE 174 LEU 175 SER 176 ALA 177 THR 178 GLN 179 THR 180 ARG 181 GLN 182 VAL 183 GLN 184 HIS 185 TYR 186 SER 187 CYS 188 CYS 189 PRO 190 GLU 191 PRO 192 TYR 193 ILE 194 ASP 195 VAL 196 ASN 197 LEU 198 VAL 199 VAL 200 LYS 201 PHE 202 ARG 203 GLU 204 ARG 205
Unit 3	GLN 1 ALA 2 ASN 3 LEU 4 MET 5 ARG 6 LEU 7 LYS 8 SER 9 ASP 10 LEU 11 PHE 12 ASN 13 ARG 14 SER 15 PRO 16 MET 17 TYR 18 PRO 19 GLY 20 PRO 21 THR 22 LYS 23 ASP 24 ASP 25 PRO 26 LEU 27 THR 28 VAL 29 THR 30 LEU 31 GLY 32 PHE 33 THR 34 LEU 35 GLN 36 ASP 37 ILE 38 VAL 39 LYS 40 VAL 41 ASP 42 SER 43 SER 44 THR 45 ASN 46 GLU 47 VAL 48 ASP 49 LEU 50 VAL 51 TYR 52 TYR 53 GLU 54 GLN 55 GLN 56 ARG 57 TRP 58 LYS 59 LEU 60 ASN 61 SER 62 LEU 63 MET 64 TRP 65 ASP 66 PRO 67 ASN 68 GLU 69 TYR 70 GLY 71 ASN 72 ILE 73 THR 74 ASP 75 PHE 76 ARG 77 THR 78 SER 79 ALA 80 ALA 81 ASP 82 ILE 83 TRP 84 THR 85 PRO 86 ASP 87 ILE 88 THR 89 ALA 90 TYR 91 SER 92 SER 93 THR 94 ARG 95 PRO 96 VAL 97 GLN 98 VAL 99 LEU 100 SER 101 PRO 102 GLN 103 ILE 104 ALA 105 VAL 106 VAL 107 THR 108 HIS 109 ASP 110 GLY 111 SER 112 VAL 113 MET 114 PHE 115 ILE 116 PRO 117 ALA 118 GLN 119 ARG 120 LEU 121 SER 122 PHE 123 MET 124 CYS 125 ASP 126 PRO 127 THR 128 GLY 129 VAL 130 ASP 131 SER 132 GLU 133 GLU 134 GLY 135 VAL 136 THR 137 CYS 138 ALA 139 VAL 140 LYS 141 PHE 142 GLY 143 SER 144 TRP 145 VAL 146 TYR 147 SER 148 GLY 149 PHE 150 GLU 151 ILE 152 ASP 153 LEU 154 LYS 155 THR 156 ASP 157 THR 158 ASP 159 GLN 160 VAL 161 ASP 162 LEU 163 SER 164 SER 165 TYR 166 TYR 167 ALA 168 SER 169 SER 170 LYS 171 TYR 172 GLU 173 ILE 174 LEU 175 SER 176 ALA 177 THR 178 GLN 179 THR 180 ARG 181 GLN 182 VAL 183 GLN 184 HIS 185 TYR 186 SER 187 CYS 188 CYS 189 PRO 190 GLU 191 PRO 192 TYR 193 ILE 194 ASP 195 VAL 196 ASN 197 LEU 198 VAL 199 VAL 200 LYS 201 PHE 202 ARG 203 GLU 204 ARG 205
Unit 4	GLN 1 ALA 2 ASN 3 LEU 4 MET 5 ARG 6 LEU 7 LYS 8 SER 9 ASP 10 LEU 11 PHE 12 ASN 13 ARG 14 SER 15 PRO 16 MET 17 TYR 18 PRO 19 GLY 20 PRO 21 THR 22 LYS 23 ASP 24 ASP 25 PRO 26 LEU 27 THR 28 VAL 29 THR 30 LEU 31 GLY 32 PHE 33 THR 34 LEU 35 GLN 36 ASP 37 ILE 38 VAL 39 LYS 40 VAL 41 ASP 42 SER 43 SER 44 THR 45 ASN 46 GLU 47 VAL 48 ASP 49 LEU 50 VAL 51 TYR 52 TYR 53 GLU 54 GLN 55 GLN 56 ARG 57 TRP 58 LYS 59 LEU 60 ASN 61 SER 62 LEU 63 MET 64 TRP 65 ASP 66 PRO 67 ASN 68 GLU 69 TYR 70 GLY 71 ASN 72 ILE 73 THR 74 ASP 75 PHE 76 ARG 77 THR 78 SER 79 ALA 80 ALA 81 ASP 82 ILE 83 TRP 84 THR 85 PRO 86 ASP 87 ILE 88 THR 89 ALA 90 TYR 91 SER 92 SER 93 THR 94 ARG 95 PRO 96 VAL 97 GLN 98 VAL 99 LEU 100 SER 101 PRO 102 GLN 103 ILE 104 ALA 105 VAL 106 VAL 107 THR 108 HIS 109 ASP 110 GLY 111 SER 112 VAL 113 MET 114 PHE 115 ILE 116 PRO 117 ALA 118 GLN 119 ARG 120 LEU 121 SER 122 PHE 123 MET 124 CYS 125 ASP 126 PRO 127 THR 128 GLY 129 VAL 130 ASP 131 SER 132 GLU 133 GLU 134 GLY 135 VAL 136 THR 137 CYS 138 ALA 139 VAL 140 LYS 141 PHE 142 GLY 143 SER 144 TRP 145 VAL 146 TYR 147 SER 148 GLY 149 PHE 150 GLU 151 ILE 152 ASP 153 LEU 154 LYS 155 THR 156 ASP 157 THR 158 ASP 159 GLN 160 VAL 161 ASP 162 LEU 163 SER 164 SER 165 TYR 166 TYR 167 ALA 168 SER 169 SER 170 LYS 171 TYR 172 GLU 173 ILE 174 LEU 175 SER 176 ALA 177 THR 178 GLN 179 THR 180 ARG 181 GLN 182 VAL 183 GLN 184 HIS 185 TYR 186 SER 187 CYS 188 CYS 189 PRO 190 GLU 191 PRO 192 TYR 193 ILE 194 ASP 195 VAL 196 ASN 197 LEU 198 VAL 199 VAL 200 LYS 201 PHE 202 ARG 203 GLU 204 ARG 205
Unit 5	GLN 1 ALA 2 ASN 3 LEU 4 MET 5 ARG 6 LEU 7 LYS 8 SER 9 ASP 10 LEU 11 PHE 12 ASN 13 ARG 14 SER 15 PRO 16 MET 17 TYR 18 PRO 19 GLY 20 PRO 21 THR 22 LYS 23 ASP 24 ASP 25 PRO 26 LEU 27 THR 28 VAL 29 THR 30 LEU 31 GLY 32 PHE 33 THR 34 LEU 35 GLN 36 ASP 37 ILE 38 VAL 39 LYS 40 VAL 41 ASP 42 SER 43 SER 44 THR 45 ASN 46 GLU 47 VAL 48 ASP 49 LEU 50 VAL 51 TYR 52 TYR 53 GLU 54 GLN 55 GLN 56 ARG 57 TRP 58 LYS 59 LEU 60 ASN 61 SER 62 LEU 63 MET 64 TRP 65 ASP 66 PRO 67 ASN 68 GLU 69 TYR 70 GLY 71 ASN 72 ILE 73 THR 74 ASP 75 PHE 76 ARG 77 THR 78 SER 79 ALA 80 ALA 81 ASP 82 ILE 83 TRP 84 THR 85 PRO 86 ASP 87 ILE 88 THR 89 ALA 90 TYR 91 SER 92 SER 93 THR 94 ARG 95 PRO 96 VAL 97 GLN 98 VAL 99 LEU 100 SER 101 PRO 102 GLN 103 ILE 104 ALA 105 VAL 106 VAL 107 THR 108 HIS 109 ASP 110 GLY 111 SER 112 VAL 113 MET 114 PHE 115 ILE 116 PRO 117 ALA 118 GLN 119 ARG 120 LEU 121 SER 122 PHE 123 MET 124 CYS 125 ASP 126 PRO 127 THR 128 GLY 129 VAL 130 ASP 131 SER 132 GLU 133 GLU 134 GLY 135 VAL 136 THR 137 CYS 138 ALA 139 VAL 140 LYS 141 PHE 142 GLY 143 SER 144 TRP 145 VAL 146 TYR 147 SER 148 GLY 149 PHE 150 GLU 151 ILE 152 ASP 153 LEU 154 LYS 155 THR 156 ASP 157 THR 158 ASP 159 GLN 160 VAL 161 ASP 162 LEU 163 SER 164 SER 165 TYR 166 TYR 167 ALA 168 SER 169 SER 170 LYS 171 TYR 172 GLU 173 ILE 174 LEU 175 SER 176 ALA 177 THR 178 GLN 179 THR 180 ARG 181 GLN 182 VAL 183 GLN 184 HIS 185 TYR 186 SER 187 CYS 188 CYS 189 PRO 190 GLU 191 PRO 192 TYR 193 ILE 194 ASP 195 VAL 196 ASN 197 LEU 198 VAL 199 VAL 200 LYS 201 PHE 202 ARG 203 GLU 204 ARG 205
Unit 6	GLY 1 CYS 2 CYS 3 SER 4 LEU 5 PRO 6 PRO 7 CYS 8 ALA 9 LEU 10 ASN 11 ASN 12 PRO 13 LYS 14 TYR 15 CYS 16 NH2 17
Unit 7	GLY 1 CYS 2 CYS 3 SER 4 LEU 5 PRO 6 PRO 7 CYS 8 ALA 9 LEU 10 ASN 11 ASN 12 PRO 13 LYS 14 TYR 15 CYS 16 NH2 17
Unit 8	GLY 1 CYS 2 CYS 3 SER 4 LEU 5 PRO 6 PRO 7 CYS 8 ALA 9 LEU 10 ASN 11 ASN 12 PRO 13 LYS 14 TYR 15 CYS 16 NH2 17
Unit 9	GLY 1 CYS 2 CYS 3 SER 4 LEU 5 PRO 6 PRO 7 CYS 8 ALA 9 LEU 10 ASN 11 ASN 12 PRO 13 LYS 14 TYR 15 CYS 16 NH2 17
Unit 10	GLY 1 CYS 2 CYS 3 SER 4 LEU 5 PRO 6 PRO 7 CYS 8 ALA 9 LEU 10 ASN 11 ASN 12 PRO 13 LYS 14 TYR 15 CYS 16 NH2 17

Ligands

Unit 11	SO4 1206
Unit 12	SO4 1206
Unit 13	SO4 1018
Unit 14	SO4 1018
Unit 15	SO4 1018