1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
Moise, L.
Piserchio, A.
Basus, V.J.
Hawrot, E.
http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic
C3 H7 N O2
89.093
y
ALANINE
L-peptide linking
C6 H15 N4 O2 1
175.209
y
ARGININE
L-peptide linking
C4 H8 N2 O3
132.118
y
ASPARAGINE
L-peptide linking
C4 H7 N O4
133.103
y
ASPARTIC ACID
L-peptide linking
C3 H7 N O2 S
121.158
y
CYSTEINE
L-peptide linking
C5 H10 N2 O3
146.144
y
GLUTAMINE
L-peptide linking
C5 H9 N O4
147.129
y
GLUTAMIC ACID
L-peptide linking
C2 H5 N O2
75.067
y
GLYCINE
peptide linking
C6 H10 N3 O2 1
156.162
y
HISTIDINE
L-peptide linking
C4 H7 N O2
101.104
n
HOMOSERINE LACTONE
L-peptide linking
C6 H13 N O2
131.173
y
ISOLEUCINE
L-peptide linking
C6 H13 N O2
131.173
y
LEUCINE
L-peptide linking
C6 H15 N2 O2 1
147.195
y
LYSINE
L-peptide linking
C5 H11 N O2 S
149.211
y
METHIONINE
L-peptide linking
C9 H11 N O2
165.189
y
PHENYLALANINE
L-peptide linking
C5 H9 N O2
115.130
y
PROLINE
L-peptide linking
C3 H7 N O3
105.093
y
SERINE
L-peptide linking
C4 H9 N O3
119.119
y
THREONINE
L-peptide linking
C11 H12 N2 O2
204.225
y
TRYPTOPHAN
L-peptide linking
C9 H11 N O3
181.189
y
TYROSINE
L-peptide linking
C5 H11 N O2
117.146
y
VALINE
L-peptide linking
US
J.Biol.Chem.
JBCHA3
0071
0021-9258
277
12406
12417
10.1074/jbc.M110320200
11790782
NMR structural analysis of alpha-bungarotoxin and its complex with the principal alpha-neurotoxin-binding sequence on the alpha 7 subunit of a neuronal nicotinic acetylcholine receptor.
2002
US
J.Biol.Chem.
JBCHA3
0071
0021-9258
274
26113
26119
10.1074/jbc.274.37.26113
Chimeric analysis of a neuronal nicotinic acetylcholine receptor reveals amino acids conferring sensitivity to alpha-bungarotoxin.
1999
US
J.Biol.Chem.
JBCHA3
0071
0021-9258
266
15230
15239
Identification of sequence segments forming the alpha-bungarotoxin binding sites on two nicotinic acetylcholine receptor alpha subunits from the avian brain.
1991
US
Biochemistry
BICHAW
0033
0006-2960
27
2763
2771
Structural studies of alpha-bungarotoxin. 1. Sequence-specific 1H NMR resonance assignments.
1988
10.2210/pdb1kc4/pdb
pdb_00001kc4
1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
1
SINGLE WAVELENGTH
M
1
1.0
8005.281
alpha-bungarotoxin
1
nat
polymer
2348.629
neuronal acetylcholine receptor protein, alpha-7 chain
alpha-neurotoxin binding site
1
man
polymer
long neurotoxin 1
no
no
IVCHTTATSPISAVTCPPGENLCYRKMWCDAFCSSRGKVVELGCAATCPSKKPYEEVTCCSTDKCNPHPKQRPG
IVCHTTATSPISAVTCPPGENLCYRKMWCDAFCSSRGKVVELGCAATCPSKKPYEEVTCCSTDKCNPHPKQRPG
A
polypeptide(L)
no
yes
IPGKRTESFYECCKEPYPD(HSL)
IPGKRTESFYECCKEPYPDS
B
polypeptide(L)
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
chicken
Gallus
Escherichia
sample
9031
Gallus gallus
562
Escherichia coli
BLR(DE3)pLysS
plasmid
pET31b(+)
many-banded krait
Bungarus
sample
8616
Bungarus multicinctus
database_2
pdbx_nmr_software
pdbx_nmr_spectrometer
pdbx_struct_assembly
pdbx_struct_oper_list
struct_ref_seq_dif
repository
Initial release
Version format compliance
Version format compliance
Data collection
Database references
Derived calculations
1
0
2002-03-13
1
1
2008-04-27
1
2
2011-07-13
1
3
2021-10-27
_database_2.pdbx_DOI
_database_2.pdbx_database_accession
_pdbx_nmr_software.name
_pdbx_nmr_spectrometer.model
_struct_ref_seq_dif.details
1abt is alpha-Bungarotoxin Complexed With The 185 - 196 Fragment Of The -Subunit Of The Torpedo Nicotinic Acetylcholine Receptor (NMR, 4
Structures)
1idh is The NMR Solution Structure Of The Complex Formed Between alpha-Bungarotoxin and An 18Mer Cognate Peptide
1abx is The crystal structure of alpha-bungarotoxin at 2.5 A resolution: relation to solution structure and binding to acetylcholine receptor.
1i9b is the X-Ray Structure Of Acetylcholine Binding Protein (Achbp)
1HAJ IS A BETA-Hairpin Structure In A 13-Mer Peptide That Binds A-Bungarotoxin With High Affinity and Neutralizes Its Toxicity.
1HC9 IS A-Bungarotoxin Complexed With High Affinity Peptide.
1BXP IS THE Solution NMR Structure Of The Complex Of alpha-Bungarotoxin With A Library Derived Peptide, 20 Structures.
1JBD IS THE NMR Structure Of The Complex Between alpha-Bungarotoxin and A Mimotope Of The Nicotinic Acetilcholine Receptor.
1IKC IS THE NMR Structure Of alpha-Bungarotoxin.
1KFH IS THE SOLUTION STRUCTURE OF ALPHA-BUNGAROTOXIN BY NMR SPECTROSCOPY.
1KL8 IS the NMR STRUCTURAL ANALYSIS OF THE COMPLEX FORMED BETWEEN ALPHA-BUNGAROTOXIN AND THE PRINCIPAL ALPHA-NEUROTOXIN BINDING SEQUENCE ON THE ALPHA7 SUBUNIT OF A NEURONAL NICOTINIC ACETYLCHOLINE RECEPTOR
RCSB
Y
RCSB
2001-11-07
REL
REL
THE WELL-DEFINED REGIONS IN THE COMPLEX, EXHIBITING EXTENSIVE LONG RANGE NOES, ARE: BGTX: 1-16, 22-28, 39-48, AND 54-68 ALPHA 7 19MER: 185-194
The submitted conformer models are the 10 with the lowest energy from a pool of over 100 accepted structures that had no restraint violations.
10
2D NOESY
2D TOCSY
3D_15N-separated_NOESY
3D_15N-separated_TOCSY
2D 1H-15N HSQC
HNHA
5.5
ambient
308
K
RMS DEVIATIONS FROM IDEAL VALUES: BOND LENGTH(A) 0.0039, ANGLES(DEG) 0.61, IMPROPERS(DEG) 0.53
distance geometry dynamical simulated annealing
1
determined by nmrclust 1.2
1.6 mM alpha-bungarotoxin/[U-15N]-alpha 7 19mer complex
30 mM sodium phosphate, pH 5.5
50 micromolar sodium azide
50 micromolar TMSP
95% H2O/5% D2O
1.6 mM alpha-bungarotoxin/[U-15N]-alpha 7 19mer complex
30 mM sodium phosphate, pH 5.5
50 micromolar sodium azide
50 micromolar TMSP
99.9% D2O
collection
XwinNMR
2.1
Delaglio, F., et al.
processing
NMRPipe
1.8
Goddard, T.D. and Kneller, D.G.
data analysis
Sparky
3.87
Brunger, A.T., et al.
refinement
CNS
1.0
600
Bruker
AVANCE
400
Bruker
AVANCE
ILE
1
n
1
ILE
1
A
VAL
2
n
2
VAL
2
A
CYS
3
n
3
CYS
3
A
HIS
4
n
4
HIS
4
A
THR
5
n
5
THR
5
A
THR
6
n
6
THR
6
A
ALA
7
n
7
ALA
7
A
THR
8
n
8
THR
8
A
SER
9
n
9
SER
9
A
PRO
10
n
10
PRO
10
A
ILE
11
n
11
ILE
11
A
SER
12
n
12
SER
12
A
ALA
13
n
13
ALA
13
A
VAL
14
n
14
VAL
14
A
THR
15
n
15
THR
15
A
CYS
16
n
16
CYS
16
A
PRO
17
n
17
PRO
17
A
PRO
18
n
18
PRO
18
A
GLY
19
n
19
GLY
19
A
GLU
20
n
20
GLU
20
A
ASN
21
n
21
ASN
21
A
LEU
22
n
22
LEU
22
A
CYS
23
n
23
CYS
23
A
TYR
24
n
24
TYR
24
A
ARG
25
n
25
ARG
25
A
LYS
26
n
26
LYS
26
A
MET
27
n
27
MET
27
A
TRP
28
n
28
TRP
28
A
CYS
29
n
29
CYS
29
A
ASP
30
n
30
ASP
30
A
ALA
31
n
31
ALA
31
A
PHE
32
n
32
PHE
32
A
CYS
33
n
33
CYS
33
A
SER
34
n
34
SER
34
A
SER
35
n
35
SER
35
A
ARG
36
n
36
ARG
36
A
GLY
37
n
37
GLY
37
A
LYS
38
n
38
LYS
38
A
VAL
39
n
39
VAL
39
A
VAL
40
n
40
VAL
40
A
GLU
41
n
41
GLU
41
A
LEU
42
n
42
LEU
42
A
GLY
43
n
43
GLY
43
A
CYS
44
n
44
CYS
44
A
ALA
45
n
45
ALA
45
A
ALA
46
n
46
ALA
46
A
THR
47
n
47
THR
47
A
CYS
48
n
48
CYS
48
A
PRO
49
n
49
PRO
49
A
SER
50
n
50
SER
50
A
LYS
51
n
51
LYS
51
A
LYS
52
n
52
LYS
52
A
PRO
53
n
53
PRO
53
A
TYR
54
n
54
TYR
54
A
GLU
55
n
55
GLU
55
A
GLU
56
n
56
GLU
56
A
VAL
57
n
57
VAL
57
A
THR
58
n
58
THR
58
A
CYS
59
n
59
CYS
59
A
CYS
60
n
60
CYS
60
A
SER
61
n
61
SER
61
A
THR
62
n
62
THR
62
A
ASP
63
n
63
ASP
63
A
LYS
64
n
64
LYS
64
A
CYS
65
n
65
CYS
65
A
ASN
66
n
66
ASN
66
A
PRO
67
n
67
PRO
67
A
HIS
68
n
68
HIS
68
A
PRO
69
n
69
PRO
69
A
LYS
70
n
70
LYS
70
A
GLN
71
n
71
GLN
71
A
ARG
72
n
72
ARG
72
A
PRO
73
n
73
PRO
73
A
GLY
74
n
74
GLY
74
A
ILE
178
n
1
ILE
178
B
PRO
179
n
2
PRO
179
B
GLY
180
n
3
GLY
180
B
LYS
181
n
4
LYS
181
B
ARG
182
n
5
ARG
182
B
THR
183
n
6
THR
183
B
GLU
184
n
7
GLU
184
B
SER
185
n
8
SER
185
B
PHE
186
n
9
PHE
186
B
TYR
187
n
10
TYR
187
B
GLU
188
n
11
GLU
188
B
CYS
189
n
12
CYS
189
B
CYS
190
n
13
CYS
190
B
LYS
191
n
14
LYS
191
B
GLU
192
n
15
GLU
192
B
PRO
193
n
16
PRO
193
B
TYR
194
n
17
TYR
194
B
PRO
195
n
18
PRO
195
B
ASP
196
n
19
ASP
196
B
n
20
197
B
author_defined_assembly
2
dimeric
1.0000000000
0.0000000000
0.0000000000
0.0000000000
1.0000000000
0.0000000000
0.0000000000
0.0000000000
1.0000000000
1_555
identity operation
0.0000000000
0.0000000000
0.0000000000
A
O
ALA
45
A
O
ALA
45
A
N
LEU
22
A
N
LEU
22
A
N
ARG
25
A
N
ARG
25
A
O
THR
58
A
O
THR
58
1
B
HSL
197
B
HSL
20
1
Y
2
B
HSL
197
B
HSL
20
1
Y
3
B
HSL
197
B
HSL
20
1
Y
4
B
HSL
197
B
HSL
20
1
Y
5
B
HSL
197
B
HSL
20
1
Y
6
B
HSL
197
B
HSL
20
1
Y
7
B
HSL
197
B
HSL
20
1
Y
8
B
HSL
197
B
HSL
20
1
Y
9
B
HSL
197
B
HSL
20
1
Y
10
B
HSL
197
B
HSL
20
1
Y
1
B
B
O
H
LYS
TYR
191
194
1.52
2
A
A
O
H
ASP
CYS
63
65
1.51
2
A
A
O
H
LEU
ALA
22
45
1.59
3
A
A
O
H
ASP
CYS
63
65
1.55
3
A
A
O
N
ASP
CYS
63
65
2.13
4
A
A
O
H
ASP
CYS
63
65
1.48
4
A
A
O
N
ASP
CYS
63
65
2.16
5
A
A
O
H
ASP
CYS
63
65
1.57
5
A
A
O
N
ASP
CYS
63
65
2.09
6
A
A
O
H
ASP
CYS
63
65
1.51
7
A
A
O
H
ASP
CYS
63
65
1.49
7
A
A
O
N
ASP
CYS
63
65
2.07
8
A
A
H
O
ASN
ALA
21
45
1.55
10
A
A
O
H
ASP
CYS
63
65
1.42
1
A
HIS
4
-45.45
166.57
1
A
ALA
7
76.08
45.14
1
A
SER
9
-177.47
-61.05
1
A
ILE
11
-53.71
106.98
1
A
ALA
13
82.82
125.54
1
A
CYS
16
-160.23
65.23
1
A
PRO
17
-105.14
49.10
1
A
ASN
21
-159.81
67.02
1
A
LEU
22
-66.90
-174.40
1
A
CYS
29
-144.38
-55.64
1
A
ASP
30
62.43
149.95
1
A
ALA
31
75.78
68.80
1
A
PHE
32
53.04
88.87
1
A
CYS
33
-143.98
21.42
1
A
SER
34
179.47
-99.33
1
A
SER
35
-141.45
-56.44
1
A
ARG
36
-92.11
51.85
1
A
VAL
40
-161.56
50.86
1
A
GLU
41
-62.74
85.67
1
A
LEU
42
-58.04
178.69
1
A
CYS
48
-112.98
60.46
1
A
PRO
49
-49.36
-170.64
1
A
SER
50
-176.60
131.98
1
A
LYS
51
-176.14
-159.80
1
A
LYS
52
-105.24
75.37
1
A
TYR
54
66.85
-0.06
1
A
GLU
55
154.90
86.82
1
A
GLU
56
-161.16
-150.80
1
A
CYS
60
175.32
102.36
1
A
SER
61
-78.87
-143.13
1
A
THR
62
81.82
-88.85
1
A
ASP
63
175.09
136.93
1
A
HIS
68
104.71
-57.62
1
B
LYS
181
-157.66
85.52
1
B
THR
183
-160.13
71.19
1
B
GLU
184
-107.93
-72.24
1
B
TYR
187
-126.34
-147.20
1
B
CYS
189
170.62
-25.86
1
B
CYS
190
-146.63
20.67
1
B
TYR
194
15.15
-77.56
1
B
PRO
195
-55.40
99.16
2
A
HIS
4
-49.98
166.74
2
A
THR
5
-164.94
-55.24
2
A
THR
6
-35.08
75.24
2
A
SER
9
-173.11
-63.72
2
A
SER
12
-123.61
-152.37
2
A
PRO
17
-42.92
164.08
2
A
CYS
29
138.41
-58.95
2
A
ASP
30
46.23
-169.85
2
A
ALA
31
68.37
-72.10
2
A
PHE
32
-179.27
91.99
2
A
SER
34
80.80
116.68
2
A
SER
35
75.47
-78.88
2
A
ARG
36
-93.78
41.04
2
A
LYS
38
-88.26
-89.78
2
A
VAL
39
169.77
-39.76
2
A
VAL
40
45.78
178.85
2
A
GLU
41
172.02
79.31
2
A
CYS
48
82.59
86.93
2
A
PRO
49
-83.49
-154.82
2
A
SER
50
99.22
154.25
2
A
LYS
52
36.82
51.55
2
A
GLU
55
-119.41
-113.72
2
A
GLU
56
136.30
131.22
2
A
SER
61
-64.84
98.18
2
A
THR
62
60.22
143.02
2
A
ASP
63
100.12
145.41
2
A
LYS
64
-65.89
54.35
2
A
CYS
65
-89.80
35.87
2
A
PRO
69
-72.89
-168.06
2
A
LYS
70
-177.71
128.21
2
A
GLN
71
-58.38
87.37
2
B
GLU
184
30.97
96.95
2
B
SER
185
-102.04
-153.26
2
B
TYR
187
-119.99
-147.54
2
B
CYS
189
169.02
-38.00
2
B
CYS
190
-154.65
23.89
2
B
LYS
191
-91.28
47.96
2
B
GLU
192
62.43
160.51
2
B
PRO
193
-60.08
78.12
2
B
TYR
194
-8.61
99.23
2
B
PRO
195
-50.83
178.91
3
A
THR
5
-61.64
-154.68
3
A
SER
9
178.91
-61.32
3
A
ILE
11
-55.18
94.82
3
A
ALA
13
-53.06
108.72
3
A
VAL
14
-89.41
-156.17
3
A
PRO
17
-102.63
48.45
3
A
GLU
20
-60.61
-101.02
3
A
ASN
21
-165.86
-32.46
3
A
TRP
28
179.93
86.95
3
A
CYS
29
167.27
-26.21
3
A
ASP
30
-36.86
163.32
3
A
ALA
31
98.30
-41.41
3
A
PHE
32
177.41
81.36
3
A
SER
34
147.20
-81.49
3
A
SER
35
-155.84
-44.76
3
A
VAL
40
-10.15
130.25
3
A
LEU
42
-33.92
148.34
3
A
PRO
49
-51.52
-169.37
3
A
LYS
51
174.58
58.65
3
A
LYS
52
34.02
71.38
3
A
GLU
55
-176.46
112.59
3
A
GLU
56
-154.08
-147.52
3
A
CYS
59
-171.36
-173.32
3
A
SER
61
-62.46
86.82
3
A
THR
62
-177.14
-147.35
3
A
ASP
63
-102.39
-139.41
3
A
LYS
64
-44.89
68.36
3
A
HIS
68
-142.15
54.57
3
A
PRO
69
-89.66
-74.86
3
B
PRO
179
-56.49
-179.53
3
B
LYS
181
60.86
128.82
3
B
ARG
182
-57.98
100.66
3
B
THR
183
-152.88
67.51
3
B
SER
185
-129.11
-151.36
3
B
TYR
187
-118.63
-143.33
3
B
CYS
189
168.82
-42.72
3
B
CYS
190
-153.93
26.47
3
B
LYS
191
-91.45
36.36
3
B
GLU
192
63.85
157.33
3
B
PRO
193
-54.81
77.68
3
B
TYR
194
60.39
-169.66
4
A
CYS
3
-173.95
135.64
4
A
HIS
4
-44.36
163.93
4
A
THR
6
-51.63
-73.03
4
A
ALA
7
166.59
45.81
4
A
SER
9
-179.33
-52.06
4
A
PRO
10
-87.01
32.02
4
A
ILE
11
20.64
92.31
4
A
VAL
14
-115.41
-151.57
4
A
THR
15
-107.75
-165.22
4
A
GLU
20
61.05
133.65
4
A
CYS
29
-102.45
-64.14
4
A
ASP
30
55.28
177.22
4
A
ALA
31
78.12
-58.54
4
A
PHE
32
-158.52
-85.45
4
A
CYS
33
40.54
93.39
4
A
SER
34
35.82
40.74
4
A
SER
35
63.59
-78.86
4
A
VAL
39
-142.58
-14.56
4
A
VAL
40
11.01
101.63
4
A
LEU
42
-47.22
174.59
4
A
THR
47
-135.29
-30.14
4
A
CYS
48
61.54
110.03
4
A
SER
50
-29.83
137.10
4
A
LYS
51
167.32
85.20
4
A
LYS
52
50.93
77.41
4
A
TYR
54
46.38
29.06
4
A
GLU
55
125.96
88.74
4
A
GLU
56
-169.87
-140.36
4
A
SER
61
-46.43
81.33
4
A
THR
62
170.17
-168.17
4
A
ASP
63
-83.95
-143.98
4
A
LYS
64
-47.19
65.17
4
A
ASN
66
-158.28
41.60
4
A
PRO
67
-61.44
-94.17
4
A
HIS
68
161.27
-65.03
4
A
ARG
72
32.58
94.25
4
A
PRO
73
-61.42
81.48
4
B
PRO
179
-58.05
-165.59
4
B
LYS
181
46.99
28.61
4
B
ARG
182
59.83
145.30
4
B
GLU
184
-59.36
-165.05
4
B
SER
185
-157.47
-148.21
4
B
GLU
188
115.51
-1.51
4
B
CYS
189
-151.80
-55.42
4
B
CYS
190
-160.31
-165.21
5
A
THR
5
171.13
-98.71
5
A
THR
6
72.87
-5.95
5
A
ALA
7
27.76
36.82
5
A
THR
8
-98.36
-65.80
5
A
SER
9
175.42
-58.21
5
A
ILE
11
44.89
142.57
5
A
SER
12
-131.93
-144.71
5
A
THR
15
-46.92
157.70
5
A
ASN
21
-134.31
-40.11
5
A
TRP
28
-155.45
55.99
5
A
CYS
29
-172.00
-40.85
5
A
ASP
30
-5.86
82.25
5
A
ALA
31
-171.81
-62.88
5
A
PHE
32
-178.92
61.33
5
A
CYS
33
-58.06
-168.49
5
A
SER
35
-178.52
-136.00
5
A
VAL
39
152.11
103.01
5
A
GLU
41
-164.37
86.53
5
A
ALA
46
-89.21
44.09
5
A
THR
47
91.42
175.70
5
A
CYS
48
-170.71
98.38
5
A
SER
50
51.57
101.33
5
A
LYS
51
168.04
20.83
5
A
LYS
52
164.48
63.86
5
A
GLU
55
54.09
95.85
5
A
GLU
56
165.57
-17.20
5
A
THR
62
170.30
160.58
5
A
ASP
63
-62.22
-139.67
5
A
LYS
64
-38.52
65.79
5
A
ASN
66
-144.94
39.32
5
A
HIS
68
96.56
-70.24
5
A
PRO
69
-60.43
-167.61
5
A
LYS
70
78.14
-54.96
5
A
ARG
72
54.67
95.70
5
A
PRO
73
-75.21
-167.74
5
B
PRO
179
-72.89
-167.17
5
B
THR
183
-148.76
57.91
5
B
GLU
188
-153.57
19.21
5
B
CYS
189
-167.89
-63.01
5
B
GLU
192
-142.25
-63.25
5
B
PRO
195
-29.41
106.83
6
A
CYS
3
-175.32
132.15
6
A
HIS
4
-62.01
-179.84
6
A
THR
6
15.97
-83.46
6
A
ALA
7
158.49
33.24
6
A
PRO
10
-86.13
38.11
6
A
ILE
11
-26.16
141.82
6
A
SER
12
-171.88
-66.48
6
A
ALA
13
64.25
-155.99
6
A
VAL
14
-158.61
-152.03
6
A
THR
15
-49.70
-176.88
6
A
GLU
20
-115.74
-168.61
6
A
ASN
21
-159.56
20.03
6
A
TRP
28
-86.31
-90.51
6
A
ALA
31
-163.12
48.21
6
A
PHE
32
58.50
111.12
6
A
CYS
33
-158.97
28.17
6
A
SER
34
-179.03
-166.70
6
A
SER
35
-81.09
-79.16
6
A
VAL
39
-24.96
-52.01
6
A
VAL
40
48.20
171.36
6
A
GLU
41
-170.73
77.11
6
A
LEU
42
-44.71
162.19
6
A
PRO
49
-72.09
-166.96
6
A
SER
50
162.83
159.24
6
A
LYS
51
170.74
65.63
6
A
GLU
55
-172.27
108.73
6
A
GLU
56
-160.29
-145.03
6
A
CYS
59
-166.99
-163.88
6
A
SER
61
-69.41
83.30
6
A
THR
62
-167.68
-154.56
6
A
ASP
63
-90.20
-139.39
6
A
LYS
64
-66.34
60.20
6
A
PRO
67
-52.41
91.47
6
A
LYS
70
63.46
130.90
6
A
GLN
71
-129.80
-168.61
6
B
PRO
179
-63.86
-173.48
6
B
THR
183
-109.58
-74.82
6
B
GLU
184
9.45
67.09
6
B
SER
185
-162.89
-156.43
6
B
TYR
187
-129.29
-141.57
6
B
CYS
189
168.79
-37.24
6
B
CYS
190
-152.44
30.31
6
B
LYS
191
-90.69
52.60
6
B
GLU
192
55.22
-164.63
6
B
PRO
193
-69.53
58.22
6
B
TYR
194
99.15
-66.56
7
A
HIS
4
-45.59
154.03
7
A
THR
5
-56.97
-160.64
7
A
SER
9
-177.22
-63.56
7
A
ILE
11
-49.46
104.49
7
A
SER
12
-109.45
-107.73
7
A
ALA
13
170.84
101.20
7
A
VAL
14
-106.50
-165.06
7
A
PRO
17
-48.18
177.94
7
A
ASN
21
173.84
83.10
7
A
ASP
30
32.65
38.04
7
A
ALA
31
-143.84
-74.30
7
A
PHE
32
-130.19
-79.29
7
A
CYS
33
53.94
-168.20
7
A
SER
35
72.12
-83.93
7
A
ARG
36
-108.06
46.08
7
A
VAL
40
32.07
60.41
7
A
GLU
41
-67.39
87.67
7
A
CYS
48
171.62
66.57
7
A
PRO
49
-64.69
-165.02
7
A
LYS
51
-170.08
-160.16
7
A
LYS
52
-107.18
75.40
7
A
GLU
55
108.62
84.82
7
A
GLU
56
-158.35
-138.58
7
A
SER
61
-67.52
81.17
7
A
THR
62
-167.63
-158.43
7
A
ASP
63
-100.01
-148.21
7
A
LYS
64
-43.20
66.69
7
A
PRO
69
-45.22
97.14
7
B
LYS
181
-140.37
-145.99
7
B
ARG
182
-50.42
-179.83
7
B
GLU
184
-45.64
-112.94
7
B
SER
185
-167.61
-145.41
7
B
TYR
187
-127.50
-143.53
7
B
CYS
189
171.60
-38.33
7
B
CYS
190
-157.95
40.48
7
B
GLU
192
61.46
-144.05
7
B
TYR
194
95.75
-81.18
8
A
HIS
4
-36.05
153.41
8
A
THR
5
-68.73
-167.48
8
A
ALA
7
78.99
65.45
8
A
SER
9
-171.47
-59.11
8
A
SER
12
-124.81
-142.68
8
A
ALA
13
-169.06
113.66
8
A
ASN
21
-136.41
-57.11
8
A
LEU
22
-58.30
179.09
8
A
TRP
28
-161.99
68.65
8
A
CYS
29
175.04
-31.22
8
A
ASP
30
-34.73
103.39
8
A
ALA
31
179.72
-45.59
8
A
PHE
32
178.07
41.62
8
A
SER
35
59.54
101.11
8
A
ARG
36
82.64
-45.00
8
A
LYS
38
-172.22
-77.32
8
A
VAL
39
163.21
118.02
8
A
THR
47
175.28
170.62
8
A
CYS
48
-103.50
59.83
8
A
PRO
49
-50.17
-163.99
8
A
SER
50
177.12
138.24
8
A
LYS
51
-178.59
40.37
8
A
LYS
52
35.04
66.73
8
A
GLU
55
-173.45
102.10
8
A
GLU
56
-163.93
-147.11
8
A
CYS
60
-174.24
110.79
8
A
SER
61
5.82
-112.82
8
A
THR
62
-148.71
-149.88
8
A
ASP
63
47.28
105.72
8
A
LYS
64
18.61
41.98
8
A
LYS
70
-117.95
75.83
8
A
GLN
71
-96.19
-159.96
8
A
ARG
72
66.48
94.85
8
A
PRO
73
-56.83
-161.83
8
B
PRO
179
-56.34
-165.84
8
B
ARG
182
-49.84
167.88
8
B
GLU
184
-43.94
-72.71
8
B
SER
185
-147.44
-152.99
8
B
TYR
187
-79.49
-124.16
8
B
CYS
189
167.14
-58.09
8
B
CYS
190
-159.94
32.78
8
B
GLU
192
89.68
160.18
8
B
PRO
193
-38.89
112.41
8
B
TYR
194
-49.81
102.48
8
B
PRO
195
-92.23
-73.44
9
A
CYS
3
-170.85
134.18
9
A
THR
5
-67.98
-155.25
9
A
SER
9
-175.66
-64.83
9
A
SER
12
-140.18
-101.35
9
A
ALA
13
171.59
107.63
9
A
VAL
14
-78.74
-161.78
9
A
CYS
16
-8.76
121.71
9
A
PRO
17
-31.98
148.45
9
A
GLU
20
-46.34
105.02
9
A
ASN
21
-175.74
80.81
9
A
TRP
28
177.47
74.61
9
A
CYS
29
174.73
-36.74
9
A
ASP
30
-20.41
107.56
9
A
ALA
31
169.85
-69.89
9
A
PHE
32
178.35
43.35
9
A
CYS
33
-63.04
-167.72
9
A
SER
35
168.83
151.76
9
A
ARG
36
104.46
-1.48
9
A
VAL
40
-151.35
73.02
9
A
GLU
41
-69.28
77.94
9
A
LEU
42
-46.83
170.47
9
A
CYS
48
-103.23
75.81
9
A
SER
50
-58.31
103.68
9
A
TYR
54
76.03
-8.38
9
A
GLU
55
163.27
95.76
9
A
GLU
56
-166.06
-142.66
9
A
SER
61
-46.63
89.61
9
A
THR
62
-11.80
-136.61
9
A
ASP
63
37.71
96.81
9
A
LYS
64
23.69
45.81
9
A
GLN
71
-60.88
-79.26
9
A
ARG
72
-152.21
67.61
9
A
PRO
73
-59.55
87.36
9
B
PRO
179
-61.79
-164.03
9
B
LYS
181
57.29
109.74
9
B
ARG
182
54.32
108.72
9
B
GLU
184
39.47
58.56
9
B
TYR
187
-117.95
-98.50
9
B
CYS
189
158.64
-62.91
9
B
CYS
190
-160.73
12.94
9
B
GLU
192
81.02
138.56
9
B
PRO
193
-48.12
151.90
10
A
HIS
4
-51.14
-179.23
10
A
THR
5
-95.00
-158.20
10
A
ALA
7
73.96
37.53
10
A
SER
9
179.48
-62.42
10
A
SER
12
-134.63
-99.07
10
A
ALA
13
163.87
118.22
10
A
VAL
14
-113.11
-153.96
10
A
PRO
17
-39.06
166.66
10
A
ASN
21
-143.82
10.41
10
A
CYS
29
-139.69
-72.09
10
A
ALA
31
-175.75
63.84
10
A
PHE
32
62.80
96.73
10
A
SER
34
55.78
124.79
10
A
SER
35
70.36
129.74
10
A
VAL
40
30.52
64.59
10
A
GLU
41
-67.62
81.70
10
A
CYS
48
-176.11
83.42
10
A
PRO
49
-52.55
-163.82
10
A
LYS
52
-114.68
65.39
10
A
GLU
55
-166.42
111.52
10
A
GLU
56
-167.39
-148.33
10
A
SER
61
-26.49
-35.92
10
A
ASP
63
107.13
150.51
10
A
LYS
64
-57.56
60.52
10
B
ARG
182
30.66
41.08
10
B
THR
183
-145.40
49.36
10
B
GLU
184
-116.79
-82.53
10
B
SER
185
-178.43
-145.77
10
B
TYR
187
-110.01
-136.70
10
B
CYS
189
175.31
-39.47
10
B
CYS
190
-155.63
18.10
10
B
GLU
192
29.94
-89.60
10
B
PRO
193
-84.44
36.30
10
B
TYR
194
20.40
-81.86
NMR Structural Analysis of the Complex Formed Between alpha-Bungarotoxin and the Principal alpha-Neurotoxin Binding Sequence on the alpha7 Subunit of a Neuronal Nicotinic Acetylcholine Receptor
1
N
N
2
N
N
disulf
2.032
A
CYS
3
A
SG
CYS
3
1_555
A
CYS
23
A
SG
CYS
23
1_555
disulf
2.032
A
CYS
16
A
SG
CYS
16
1_555
A
CYS
44
A
SG
CYS
44
1_555
disulf
2.034
A
CYS
29
A
SG
CYS
29
1_555
A
CYS
33
A
SG
CYS
33
1_555
disulf
2.031
A
CYS
48
A
SG
CYS
48
1_555
A
CYS
59
A
SG
CYS
59
1_555
disulf
2.028
A
CYS
60
A
SG
CYS
60
1_555
A
CYS
65
A
SG
CYS
65
1_555
disulf
2.062
B
CYS
189
B
SG
CYS
12
1_555
B
CYS
190
B
SG
CYS
13
1_555
TOXIN
alpha-bungarotoxin, nicotinic acetylcholine receptor alpha 7 subunit, alpha-neurotoxin, ligand-gated ion channels, protein-protein interactions, protein-peptide complex, TOXIN
NXL1A_BUNMU
UNP
1
1
P60615
IVCHTTATSPISAVTCPPGENLCYRKMWCDAFCSSRGKVVELGCAATCPSKKPYEEVTCCSTDKCNPHPKQRPG
ACHA7_CHICK
UNP
2
201
P22770
IPGKRTESFYECCKEPYPD
1
74
1KC4
1
74
P60615
A
1
1
74
201
219
1KC4
178
196
P22770
B
2
1
19
2
engineered mutation
HSL
197
1KC4
B
P22770
UNP
20
3
anti-parallel
anti-parallel
A
GLU
41
A
GLU
41
A
ALA
45
A
ALA
45
A
LEU
22
A
LEU
22
A
LYS
26
A
LYS
26
A
VAL
57
A
VAL
57
A
THR
58
A
THR
58