1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
Cai, Z.
Xu, C.
Xu, Y.
Lu, W.
Chi, C.W.
Shi, Y.
Wu, J.
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
C2 H5 N O2
75.067
y
GLYCINE
peptide linking
C6 H13 N O2
131.173
y
ISOLEUCINE
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
C3 H7 N O3
105.093
y
SERINE
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
Biochemistry
BICHAW
0033
0006-2960
43
3764
3771
10.1021/bi035412+
15049683
Solution Structure of BmBKTx1, a New BK(Ca)(1) Channel Blocker from the Chinese Scorpion Buthus martensi Karsch(,).
2004
10.2210/pdb1q2k/pdb
pdb_00001q2k
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
3348.018
Neurotoxin BmK37
1
syn
polymer
BmBKTx1
no
no
AACYSSDCRVKCVAMGFSSGKCINSKCKCYK
AACYSSDCRVKCVAMGFSSGKCINSKCKCYK
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
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
2003-09-09
1
1
2008-04-29
1
2
2011-07-13
1
3
2022-03-02
_database_2.pdbx_DOI
_database_2.pdbx_database_accession
_pdbx_nmr_software.name
RCSB
Y
PDBJ
2003-07-25
REL
REL
solid phase peptide synthesis
sample
the structures are based on a total of 322 restraints, 287 are NOE-derived distance constraints, 21 dihedral angle restraints, 14 distance restraints from hydrogen bonds
structures with the lowest energy
100
21
2D NOESY
2D TOCSY
DQF-COSY
2D TOCSY
5.0
1
atm
300
K
5.0
1
atm
292
K
simulated annealing, energy minimization
1
minimized average structure
3mM BmBKTx1, 0.45ml of 90% H2O, 10% D2O (v/v); pH 5.0
0.45ml of 90% H2O, 10% D2O (v/v)
3mM BmBKTx1, 99.96% D2O
99.96% D2O
structure solution
CNS
1.0
Wuthrich, K
data analysis
XEASY
3.2
Peter Guntert
data analysis
DIANA
2.8
refinement
CNS
1.0
500
Bruker
DMX
ALA
1
n
1
ALA
1
A
ALA
2
n
2
ALA
2
A
CYS
3
n
3
CYS
3
A
TYR
4
n
4
TYR
4
A
SER
5
n
5
SER
5
A
SER
6
n
6
SER
6
A
ASP
7
n
7
ASP
7
A
CYS
8
n
8
CYS
8
A
ARG
9
n
9
ARG
9
A
VAL
10
n
10
VAL
10
A
LYS
11
n
11
LYS
11
A
CYS
12
n
12
CYS
12
A
VAL
13
n
13
VAL
13
A
ALA
14
n
14
ALA
14
A
MET
15
n
15
MET
15
A
GLY
16
n
16
GLY
16
A
PHE
17
n
17
PHE
17
A
SER
18
n
18
SER
18
A
SER
19
n
19
SER
19
A
GLY
20
n
20
GLY
20
A
LYS
21
n
21
LYS
21
A
CYS
22
n
22
CYS
22
A
ILE
23
n
23
ILE
23
A
ASN
24
n
24
ASN
24
A
SER
25
n
25
SER
25
A
LYS
26
n
26
LYS
26
A
CYS
27
n
27
CYS
27
A
LYS
28
n
28
LYS
28
A
CYS
29
n
29
CYS
29
A
TYR
30
n
30
TYR
30
A
LYS
31
n
31
LYS
31
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
A
N
LYS
21
A
N
LYS
21
A
O
LYS
28
A
O
LYS
28
4
A
A
O
H
SER
TYR
19
30
1.57
5
A
A
O
H
SER
TYR
19
30
1.59
8
A
A
O
H
SER
TYR
19
30
1.59
9
A
A
O
H
SER
TYR
19
30
1.57
10
A
A
O
H
SER
TYR
19
30
1.58
10
A
A
O
H
TYR
CYS
4
8
1.59
12
A
A
O
H
SER
TYR
19
30
1.59
13
A
A
O
H
SER
TYR
19
30
1.57
14
A
A
O
H
SER
TYR
19
30
1.58
14
A
A
O
H
TYR
CYS
4
8
1.59
15
A
A
O
H
SER
TYR
19
30
1.58
16
A
A
O
H
SER
TYR
19
30
1.59
17
A
A
O
H
SER
TYR
19
30
1.57
19
A
A
O
H
SER
TYR
19
30
1.58
20
A
A
O
H
TYR
CYS
4
8
1.60
21
A
A
O
H
SER
TYR
19
30
1.59
1
A
SER
19
165.66
-173.95
1
A
ILE
23
-96.87
-146.24
1
A
SER
25
-177.12
35.38
2
A
SER
19
175.16
174.79
2
A
ILE
23
-94.90
-137.38
2
A
SER
25
-175.40
36.52
2
A
TYR
30
-113.27
76.66
3
A
SER
19
163.51
-175.43
3
A
ILE
23
-97.26
-139.99
3
A
SER
25
-177.06
32.45
4
A
SER
19
158.59
-172.95
4
A
ILE
23
-100.28
-144.26
4
A
SER
25
-177.78
35.70
5
A
SER
19
174.00
172.63
5
A
ILE
23
-94.66
-136.45
5
A
SER
25
-176.20
37.07
5
A
TYR
30
-116.19
75.59
6
A
SER
19
172.40
176.00
6
A
ILE
23
-94.95
-138.08
6
A
SER
25
-175.69
35.81
6
A
TYR
30
-113.88
75.06
7
A
SER
19
177.18
174.45
7
A
ILE
23
-113.84
-149.15
7
A
SER
25
-173.63
38.68
7
A
TYR
30
-117.24
77.56
8
A
SER
19
160.87
-174.22
8
A
ILE
23
-101.56
-141.72
8
A
SER
25
-177.04
32.27
9
A
SER
19
161.66
-174.00
9
A
ILE
23
-98.35
-149.65
9
A
SER
25
-175.82
35.01
10
A
SER
19
163.11
-174.01
10
A
ILE
23
-111.49
-149.59
10
A
SER
25
-175.05
37.32
11
A
SER
19
164.52
-174.42
11
A
ILE
23
-95.89
-141.55
11
A
SER
25
-176.53
36.35
12
A
SER
19
162.29
-174.01
12
A
ILE
23
-100.67
-141.12
12
A
SER
25
-177.17
33.46
13
A
SER
19
163.13
-176.70
13
A
ILE
23
-100.94
-143.47
13
A
SER
25
-175.55
28.70
14
A
SER
19
163.11
-174.01
14
A
ILE
23
-111.49
-149.59
14
A
SER
25
-175.05
37.32
15
A
ALA
2
-64.76
86.22
15
A
SER
19
160.64
-175.52
15
A
ILE
23
-100.82
-149.50
15
A
SER
25
-176.16
33.38
16
A
SER
19
177.99
170.42
16
A
ILE
23
-94.51
-134.75
16
A
SER
25
-176.01
35.20
16
A
TYR
30
-116.37
79.53
17
A
SER
19
159.13
-174.46
17
A
ILE
23
-96.60
-144.24
17
A
SER
25
-177.40
35.80
18
A
SER
19
177.64
177.31
18
A
ILE
23
-94.98
-135.28
18
A
SER
25
-176.67
34.63
18
A
TYR
30
-114.53
76.38
19
A
SER
19
162.82
-175.12
19
A
ILE
23
-97.75
-143.89
19
A
SER
25
-177.61
35.95
20
A
SER
19
177.58
174.59
20
A
ILE
23
-111.91
-152.17
20
A
SER
25
-173.77
37.02
20
A
TYR
30
-116.85
78.44
21
A
SER
19
163.34
-173.83
21
A
ILE
23
-103.66
-142.60
21
A
SER
25
-177.62
32.69
minimized average
Solution structure of BmBKTx1 a new potassium channel blocker from the Chinese Scorpion Buthus martensi Karsch
1
N
N
A
TYR
4
A
TYR
4
HELX_P
A
MET
15
A
MET
15
1
1
12
disulf
2.029
A
CYS
3
A
SG
CYS
3
1_555
A
CYS
22
A
SG
CYS
22
1_555
disulf
2.025
A
CYS
8
A
SG
CYS
8
1_555
A
CYS
27
A
SG
CYS
27
1_555
disulf
2.032
A
CYS
12
A
SG
CYS
12
1_555
A
CYS
29
A
SG
CYS
29
1_555
TOXIN
Alpha-helix, Beta-sheet, TOXIN
SCBX_MESMA
UNP
1
1
P83407
AACYSSDCRVKCVAMGFSSGKCINSKCKCYK
1
31
1Q2K
1
31
P83407
A
1
1
31
2
anti-parallel
A
GLY
20
A
GLY
20
A
CYS
22
A
CYS
22
A
CYS
27
A
CYS
27
A
CYS
29
A
CYS
29