1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
Lee, C.W.
Takeuchi, K.
Takahashi, H.
Sato, K.
Shimada, I.
Kim, D.H.
Kim, J.I.
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 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
C6 H13 N O2
131.173
y
LEUCINE
L-peptide linking
C6 H15 N2 O2 1
147.195
y
LYSINE
L-peptide linking
C5 H9 N O2
115.130
y
PROLINE
L-peptide linking
C4 H9 N O3
119.119
y
THREONINE
L-peptide linking
UK
Biochem.J.
BIJOAK
0043
0264-6021
377
385
394
10.1042/BJ20031192
14535845
Molecular basis of the high-affinity activation of type 1 ryanodine receptors by imperatoxin A.
2004
10.2210/pdb1ie6/pdb
pdb_00001ie6
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
3776.495
IMPERATOXIN A
1
syn
polymer
PEPTIDE NEUROTOXIN, RYANODINE RECEPTOR ACTIVATOR
no
no
GDCLPHLKRCKADNDCCGKKCKRRGTNAEKRCR
GDCLPHLKRCKADNDCCGKKCKRRGTNAEKRCR
A
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
database_2
pdbx_nmr_software
pdbx_struct_assembly
pdbx_struct_oper_list
repository
Initial release
Version format compliance
Version format compliance
Data collection
Database references
Derived calculations
1
0
2003-06-10
1
1
2008-04-27
1
2
2011-07-13
1
3
2022-02-23
_database_2.pdbx_DOI
_database_2.pdbx_database_accession
_pdbx_nmr_software.name
SEQUENCE
The sequence of this protein was published in a journal
(Zamudio, F. Z., et al. 1997, FEBS Lett. 405, 385-389).
RCSB
Y
RCSB
2001-04-07
REL
REL
The peptide was chemically synthesized. This sequence occurs naturally in the venom of scorpion Pandinus imperator.
sample
This structure was determined using standard 2D homonuclear techniques.
The submitted conformer models are those with the lowest energy and the least restraint violations.
100
20
2D NOESY
DQF-COSY
E-COSY
0
3.4
ambient
300
K
The structures are based on a total of 519 restraints, 473 are NOE-derived distance constraints, 25 dihedral angle restraints, 12 distance restraints from hydrogen bonds, and 9 distance restraints form disulfide bonds.
distance geometry simulated annealing
11
closest to the average
5mM Imperatoxin A; 90% H2O, 10% D2O
90% H2O/10% D2O
Bruker
collection
XwinNMR
3.0
Bruker
processing
XwinNMR
3.0
Brunger
structure solution
X-PLOR
3.851
Brunger
refinement
X-PLOR
3.851
600
Bruker
DRX
GLY
1
n
1
GLY
1
A
ASP
2
n
2
ASP
2
A
CYS
3
n
3
CYS
3
A
LEU
4
n
4
LEU
4
A
PRO
5
n
5
PRO
5
A
HIS
6
n
6
HIS
6
A
LEU
7
n
7
LEU
7
A
LYS
8
n
8
LYS
8
A
ARG
9
n
9
ARG
9
A
CYS
10
n
10
CYS
10
A
LYS
11
n
11
LYS
11
A
ALA
12
n
12
ALA
12
A
ASP
13
n
13
ASP
13
A
ASN
14
n
14
ASN
14
A
ASP
15
n
15
ASP
15
A
CYS
16
n
16
CYS
16
A
CYS
17
n
17
CYS
17
A
GLY
18
n
18
GLY
18
A
LYS
19
n
19
LYS
19
A
LYS
20
n
20
LYS
20
A
CYS
21
n
21
CYS
21
A
LYS
22
n
22
LYS
22
A
ARG
23
n
23
ARG
23
A
ARG
24
n
24
ARG
24
A
GLY
25
n
25
GLY
25
A
THR
26
n
26
THR
26
A
ASN
27
n
27
ASN
27
A
ALA
28
n
28
ALA
28
A
GLU
29
n
29
GLU
29
A
LYS
30
n
30
LYS
30
A
ARG
31
n
31
ARG
31
A
CYS
32
n
32
CYS
32
A
ARG
33
n
33
ARG
33
A
author_defined_assembly
1
monomeric
1.0000000000
0.0000000000
0.0000000000
0.0000000000
1.0000000000
0.0000000000
0.0000000000
0.0000000000
1.0000000000
1_555
x,y,z
identity operation
0.0000000000
0.0000000000
0.0000000000
1
A
A
H
O
LEU
ASP
4
15
1.49
1
A
A
O
H
LYS
LYS
22
30
1.49
1
A
A
O
HH21
CYS
ARG
21
23
1.55
2
A
A
H
O
LEU
ASP
4
15
1.47
3
A
A
H
O
LEU
ASP
4
15
1.58
3
A
A
O
H
LEU
CYS
4
17
1.59
4
A
A
H
O
LEU
ASP
4
15
1.43
4
A
A
O
H
ALA
ASP
12
15
1.50
4
A
A
O
H
LYS
LYS
22
30
1.55
5
A
A
O
H
ALA
ASP
12
15
1.59
6
A
A
O
H
LEU
CYS
4
17
1.54
7
A
A
O
H
LYS
LYS
22
30
1.49
8
A
A
H
O
LEU
ASP
4
15
1.54
9
A
A
H
O
LEU
ASP
4
15
1.48
9
A
A
O
H
LYS
LYS
22
30
1.52
10
A
A
H
O
LEU
ASP
4
15
1.45
10
A
A
O
H
ALA
ASP
12
15
1.47
10
A
A
O
HD21
THR
ASN
26
27
1.52
12
A
A
H
O
LEU
ASP
4
15
1.47
15
A
A
H
O
LEU
ASP
4
15
1.50
16
A
A
H
O
LEU
ASP
4
15
1.53
17
A
A
H
O
LEU
ASP
4
15
1.45
17
A
A
O
H
ALA
ASP
12
15
1.52
18
A
A
H
O
LEU
ASP
4
15
1.46
19
A
A
O
H
ALA
ASP
12
15
1.50
19
A
A
O
H
LEU
CYS
4
17
1.53
20
A
A
H
O
LEU
ASP
4
15
1.44
20
A
A
O
H
LYS
LYS
22
30
1.53
20
A
A
O
H
LEU
CYS
4
17
1.58
1
A
ARG
24
0.309
SIDE CHAIN
1
A
ARG
31
0.310
SIDE CHAIN
1
A
ARG
33
0.268
SIDE CHAIN
2
A
ARG
9
0.311
SIDE CHAIN
2
A
ARG
23
0.241
SIDE CHAIN
2
A
ARG
24
0.117
SIDE CHAIN
2
A
ARG
31
0.137
SIDE CHAIN
2
A
ARG
33
0.240
SIDE CHAIN
3
A
ARG
9
0.309
SIDE CHAIN
3
A
ARG
23
0.200
SIDE CHAIN
3
A
ARG
24
0.243
SIDE CHAIN
3
A
ARG
31
0.110
SIDE CHAIN
3
A
ARG
33
0.190
SIDE CHAIN
4
A
ARG
9
0.132
SIDE CHAIN
4
A
ARG
23
0.307
SIDE CHAIN
4
A
ARG
24
0.283
SIDE CHAIN
4
A
ARG
31
0.117
SIDE CHAIN
4
A
ARG
33
0.266
SIDE CHAIN
5
A
ARG
9
0.184
SIDE CHAIN
5
A
ARG
24
0.313
SIDE CHAIN
5
A
ARG
31
0.304
SIDE CHAIN
5
A
ARG
33
0.133
SIDE CHAIN
6
A
ARG
9
0.211
SIDE CHAIN
6
A
ARG
23
0.302
SIDE CHAIN
6
A
ARG
24
0.247
SIDE CHAIN
6
A
ARG
31
0.243
SIDE CHAIN
6
A
ARG
33
0.225
SIDE CHAIN
7
A
ARG
9
0.288
SIDE CHAIN
7
A
ARG
23
0.095
SIDE CHAIN
7
A
ARG
24
0.315
SIDE CHAIN
7
A
ARG
31
0.312
SIDE CHAIN
7
A
ARG
33
0.277
SIDE CHAIN
8
A
ARG
9
0.237
SIDE CHAIN
8
A
ARG
23
0.234
SIDE CHAIN
8
A
ARG
24
0.288
SIDE CHAIN
8
A
ARG
31
0.288
SIDE CHAIN
8
A
ARG
33
0.226
SIDE CHAIN
9
A
ARG
9
0.317
SIDE CHAIN
9
A
ARG
23
0.080
SIDE CHAIN
9
A
ARG
24
0.123
SIDE CHAIN
9
A
ARG
31
0.272
SIDE CHAIN
9
A
ARG
33
0.284
SIDE CHAIN
10
A
ARG
9
0.202
SIDE CHAIN
10
A
ARG
23
0.228
SIDE CHAIN
10
A
ARG
24
0.318
SIDE CHAIN
10
A
ARG
31
0.115
SIDE CHAIN
10
A
ARG
33
0.265
SIDE CHAIN
11
A
ARG
9
0.306
SIDE CHAIN
11
A
ARG
23
0.315
SIDE CHAIN
11
A
ARG
24
0.232
SIDE CHAIN
11
A
ARG
31
0.317
SIDE CHAIN
11
A
ARG
33
0.314
SIDE CHAIN
12
A
ARG
9
0.197
SIDE CHAIN
12
A
ARG
23
0.299
SIDE CHAIN
12
A
ARG
24
0.299
SIDE CHAIN
12
A
ARG
33
0.204
SIDE CHAIN
13
A
ARG
9
0.274
SIDE CHAIN
13
A
ARG
23
0.306
SIDE CHAIN
13
A
ARG
24
0.309
SIDE CHAIN
13
A
ARG
31
0.292
SIDE CHAIN
13
A
ARG
33
0.205
SIDE CHAIN
14
A
ARG
9
0.244
SIDE CHAIN
14
A
ARG
24
0.219
SIDE CHAIN
14
A
ARG
31
0.245
SIDE CHAIN
14
A
ARG
33
0.308
SIDE CHAIN
15
A
ARG
9
0.310
SIDE CHAIN
15
A
ARG
23
0.228
SIDE CHAIN
15
A
ARG
24
0.224
SIDE CHAIN
15
A
ARG
31
0.314
SIDE CHAIN
15
A
ARG
33
0.192
SIDE CHAIN
16
A
ARG
9
0.318
SIDE CHAIN
16
A
ARG
23
0.306
SIDE CHAIN
16
A
ARG
24
0.299
SIDE CHAIN
16
A
ARG
31
0.288
SIDE CHAIN
16
A
ARG
33
0.121
SIDE CHAIN
17
A
ARG
9
0.123
SIDE CHAIN
17
A
ARG
23
0.317
SIDE CHAIN
17
A
ARG
24
0.201
SIDE CHAIN
17
A
ARG
31
0.300
SIDE CHAIN
17
A
ARG
33
0.193
SIDE CHAIN
18
A
ARG
9
0.307
SIDE CHAIN
18
A
ARG
23
0.249
SIDE CHAIN
18
A
ARG
24
0.149
SIDE CHAIN
18
A
ARG
31
0.306
SIDE CHAIN
18
A
ARG
33
0.319
SIDE CHAIN
19
A
ARG
9
0.240
SIDE CHAIN
19
A
ARG
23
0.308
SIDE CHAIN
19
A
ARG
24
0.318
SIDE CHAIN
19
A
ARG
31
0.255
SIDE CHAIN
19
A
ARG
33
0.263
SIDE CHAIN
20
A
ARG
9
0.132
SIDE CHAIN
20
A
ARG
23
0.315
SIDE CHAIN
20
A
ARG
24
0.277
SIDE CHAIN
20
A
ARG
33
0.154
SIDE CHAIN
1
A
LEU
7
-161.67
13.85
1
A
ASN
14
-90.75
45.39
1
A
ARG
24
-98.22
52.83
1
A
ASN
27
57.06
119.25
1
A
ALA
28
-159.32
-64.29
1
A
GLU
29
159.77
59.82
1
A
LYS
30
-96.22
-73.85
2
A
HIS
6
-90.63
37.15
2
A
LEU
7
-161.84
18.00
2
A
ARG
24
-161.07
49.76
2
A
THR
26
38.39
51.61
2
A
ASN
27
40.75
-150.82
2
A
ALA
28
78.36
-123.08
2
A
CYS
32
-58.59
93.27
3
A
ASP
2
64.93
60.81
3
A
HIS
6
-85.57
34.65
3
A
LEU
7
-155.24
48.77
3
A
ASN
14
-90.90
54.01
3
A
ARG
24
-154.19
53.27
3
A
THR
26
39.40
37.74
3
A
ASN
27
26.90
100.45
3
A
ALA
28
-143.49
-39.76
3
A
GLU
29
-179.19
96.88
3
A
LYS
30
-117.37
-87.89
4
A
HIS
6
-89.36
33.23
4
A
LEU
7
-162.41
16.60
4
A
ARG
24
-91.53
49.70
4
A
ASN
27
51.38
139.34
4
A
ALA
28
167.83
-54.94
4
A
GLU
29
-179.46
54.20
4
A
LYS
30
-108.19
-86.15
5
A
ASP
2
-102.28
56.81
5
A
HIS
6
-87.77
38.84
5
A
LEU
7
-156.35
28.87
5
A
THR
26
-145.34
59.60
5
A
ASN
27
58.21
140.02
5
A
ALA
28
169.85
-49.19
5
A
GLU
29
171.56
74.20
5
A
LYS
30
-126.60
-87.05
6
A
ASP
2
174.04
115.84
6
A
HIS
6
-88.65
35.02
6
A
LEU
7
-161.11
15.03
6
A
LYS
19
56.27
18.86
6
A
THR
26
-179.63
58.25
6
A
ASN
27
56.58
118.74
6
A
ALA
28
-178.31
-33.92
6
A
GLU
29
165.97
70.64
6
A
LYS
30
-133.88
-87.23
7
A
CYS
3
-155.84
-150.08
7
A
HIS
6
-90.47
32.68
7
A
LEU
7
-161.82
16.18
7
A
ASN
14
-90.85
48.02
7
A
ARG
24
-102.80
62.07
7
A
THR
26
41.08
90.91
7
A
ASN
27
-22.08
139.25
7
A
ALA
28
-158.24
-76.51
7
A
GLU
29
163.85
68.83
7
A
LYS
30
-85.36
-73.85
8
A
ASP
2
-57.21
109.01
8
A
CYS
3
-47.33
173.94
8
A
HIS
6
-86.43
35.66
8
A
LEU
7
-161.46
15.46
8
A
ASN
14
-90.49
45.16
8
A
THR
26
-115.10
56.38
8
A
ASN
27
55.79
144.32
8
A
ALA
28
173.00
-61.23
8
A
GLU
29
176.80
63.22
8
A
LYS
30
-105.15
-83.91
9
A
ASP
2
43.64
74.52
9
A
LEU
7
-161.98
11.09
9
A
ASN
14
-90.68
33.75
9
A
ARG
23
-128.94
-166.30
9
A
ASN
27
62.51
148.81
9
A
ALA
28
173.00
-79.71
9
A
GLU
29
163.65
82.06
9
A
LYS
30
-96.06
-73.60
10
A
HIS
6
-89.99
33.42
10
A
LEU
7
-162.26
25.07
10
A
ARG
9
-47.54
153.21
10
A
ARG
24
-82.16
49.88
10
A
THR
26
-101.81
52.92
10
A
ASN
27
57.17
154.58
10
A
ALA
28
173.17
-57.50
10
A
GLU
29
169.18
58.40
10
A
LYS
30
-95.41
-88.64
11
A
HIS
6
-87.27
35.96
11
A
LEU
7
-161.11
16.20
11
A
ASN
14
-90.56
53.29
11
A
LYS
19
59.32
17.61
11
A
THR
26
38.20
37.62
11
A
ASN
27
53.37
163.41
11
A
ALA
28
167.76
-67.67
11
A
GLU
29
-171.67
78.13
11
A
LYS
30
-116.46
-84.66
12
A
HIS
6
-87.76
34.74
12
A
LEU
7
-160.96
-0.79
12
A
LYS
19
57.91
16.93
12
A
THR
26
-154.25
84.48
12
A
ASN
27
39.33
112.92
12
A
ALA
28
-161.49
-49.05
12
A
GLU
29
169.21
55.27
12
A
LYS
30
-113.53
-76.62
13
A
ASP
2
-178.46
98.40
13
A
HIS
6
-88.48
33.13
13
A
LEU
7
-160.11
51.09
13
A
ASN
14
-90.28
38.02
13
A
ARG
24
-162.35
40.72
13
A
THR
26
-151.06
76.21
13
A
ASN
27
61.90
-158.81
13
A
ALA
28
71.42
-116.57
13
A
GLU
29
-173.18
141.10
14
A
ASP
2
56.32
84.66
14
A
HIS
6
-90.39
34.05
14
A
LEU
7
-162.29
18.48
14
A
ASN
14
-90.92
54.70
14
A
LYS
20
-160.27
79.47
14
A
ARG
24
-160.18
44.35
14
A
ASN
27
63.22
-156.69
14
A
ALA
28
75.18
-118.50
14
A
GLU
29
-174.97
143.53
14
A
LYS
30
-120.93
-63.13
15
A
CYS
3
-47.82
175.67
15
A
HIS
6
-87.73
36.48
15
A
LEU
7
-161.83
18.45
15
A
THR
26
-150.41
79.54
15
A
ASN
27
38.69
113.14
15
A
ALA
28
-159.87
-50.19
15
A
GLU
29
178.51
61.47
15
A
LYS
30
-117.24
-85.34
15
A
CYS
32
-58.17
101.11
16
A
PRO
5
-66.50
-178.80
16
A
LEU
7
-162.40
-4.39
16
A
LYS
19
58.81
16.72
16
A
THR
26
-144.29
51.75
16
A
ASN
27
59.88
128.58
16
A
ALA
28
171.64
-35.79
16
A
GLU
29
166.43
94.63
16
A
LYS
30
-154.32
-87.39
17
A
HIS
6
-88.70
35.13
17
A
LEU
7
-161.54
19.31
17
A
ASN
27
55.67
143.53
17
A
ALA
28
170.98
-54.34
17
A
GLU
29
170.14
72.94
17
A
LYS
30
-121.97
-86.76
18
A
ASP
2
-156.14
56.14
18
A
HIS
6
-86.62
35.96
18
A
LEU
7
-163.18
21.33
18
A
THR
26
39.90
92.90
18
A
ASN
27
-21.83
140.79
18
A
ALA
28
-177.61
-45.19
18
A
GLU
29
-179.61
55.94
18
A
LYS
30
-122.15
-94.95
19
A
ASP
2
63.80
100.34
19
A
HIS
6
-88.05
32.12
19
A
LEU
7
-154.97
31.92
19
A
ARG
24
-91.56
59.62
19
A
ASN
27
59.61
141.01
19
A
ALA
28
173.38
-67.59
19
A
GLU
29
172.36
58.99
19
A
LYS
30
-103.64
-85.28
20
A
LEU
7
-162.50
47.17
20
A
LYS
19
56.74
18.26
20
A
THR
26
36.17
38.02
20
A
ASN
27
16.55
52.92
20
A
GLU
29
-176.87
67.72
20
A
LYS
30
-79.06
-72.21
SOLUTION STRUCTURE OF IMPERATOXIN A
1
N
N
A
ALA
12
A
ALA
12
HELX_P
A
ASP
15
A
ASP
15
5
1
4
disulf
2.021
A
CYS
3
A
SG
CYS
3
1_555
A
CYS
17
A
SG
CYS
17
1_555
disulf
2.021
A
CYS
10
A
SG
CYS
10
1_555
A
CYS
21
A
SG
CYS
21
1_555
disulf
2.019
A
CYS
16
A
SG
CYS
16
1_555
A
CYS
32
A
SG
CYS
32
1_555
TOXIN
Triple stranded antiparellel beta-sheet, inhibitory cystine knot, TOXIN
IPTXA_PANIM
UNP
1
1
P59868
1
33
1IE6
1
33
P59868
A
1
1
33