1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
Pennington, M.W.
Lanigan, M.D.
Kalman, K.
Manhir, V.M.
Rauer, H.
McVaugh, C.T.
Behm, D.
Donaldson, D.
Chandy, K.G.
Kem, W.R.
Norton, R.S.
http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic
1
90.00
90.00
90.00
1.000
1.000
1.000
C4 H9 N O2
103.120
n
ALPHA-AMINOBUTYRIC ACID
L-peptide linking
C3 H7 N O2
89.093
y
ALANINE
L-peptide linking
C6 H15 N4 O2 1
175.209
y
ARGININE
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
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
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
C9 H11 N O3
181.189
y
TYROSINE
L-peptide linking
US
Biochemistry
BICHAW
0033
0006-2960
38
14549
14558
10.1021/bi991282m
10545177
Role of disulfide bonds in the structure and potassium channel blocking activity of ShK toxin.
1999
10.2210/pdb1c2u/pdb
pdb_00001c2u
1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
3973.698
SYNTHETIC PEPTIDE ANALOGUE OF SHK TOXIN
C3(ABU), C35(ABU), M21A
1
syn
polymer
no
yes
RS(ABA)IDTIPKSRCTAFQCKHSAKYRLSFCRKTCGT(ABA)
RSAIDTIPKSRCTAFQCKHSAKYRLSFCRKTCGTA
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
n
n
database_2
pdbx_nmr_software
pdbx_struct_assembly
pdbx_struct_oper_list
struct_conn
struct_ref_seq_dif
repository
Initial release
Version format compliance
Version format compliance
Data collection
Database references
Derived calculations
1
0
1999-11-10
1
1
2008-04-27
1
2
2011-07-13
1
3
2021-11-03
_database_2.pdbx_DOI
_database_2.pdbx_database_accession
_pdbx_nmr_software.name
_struct_conn.pdbx_leaving_atom_flag
_struct_ref_seq_dif.details
RCSB
Y
RCSB
1999-07-27
REL
REL
THE PEPTIDE WAS CHEMICALLY SYNTHESIZED. THE SEQUENCE OF THIS PEPTIDE IS NATURALLY FOUND IN STICHODACTYLA HELIANTHUS.
sample
THIS STRUCTURE WAS DETERMINED USING STANDARD 2D HOMONUCLEAR TECHNIQUES.
structures with the lowest energy
50
20
2D NOESY
2D-TOCSY
DQF-COSY
5.6 mM PEPTIDE
5.0
AMBIENT
293.0
K
THE STRUCTURES ARE BASED ON 328 NOE-DERIVED DISTANCE CONSTRAINTS AND 26 DIHEDRAL ANGLE RESTRAINTS
THE STRUCTURES WERE REFINED USING DISTANCE GEOMETRY, SIMULATED ANNEALING AND MOLECULAR DYNAMICS
1
closest to the average
5.6 MM [ABU3,35]SHK12-28,17-32; 90% H2O, 10% D2O (V/V)
BRUKER
collection
XwinNMR
2.1
BARTELS
data analysis
XEASY
1.3.7
GUNTERT
structure solution
DYANA
1.4
BRUNGER
refinement
X-PLOR
1.3
BROOKS
refinement
CHARMM
19
600
Bruker
DRX
500
Bruker
AMX
ARG
1
n
1
ARG
1
A
SER
2
n
2
SER
2
A
ABA
3
n
3
ABA
3
A
ILE
4
n
4
ILE
4
A
ASP
5
n
5
ASP
5
A
THR
6
n
6
THR
6
A
ILE
7
n
7
ILE
7
A
PRO
8
n
8
PRO
8
A
LYS
9
n
9
LYS
9
A
SER
10
n
10
SER
10
A
ARG
11
n
11
ARG
11
A
CYS
12
n
12
CYS
12
A
THR
13
n
13
THR
13
A
ALA
14
n
14
ALA
14
A
PHE
15
n
15
PHE
15
A
GLN
16
n
16
GLN
16
A
CYS
17
n
17
CYS
17
A
LYS
18
n
18
LYS
18
A
HIS
19
n
19
HIS
19
A
SER
20
n
20
SER
20
A
ALA
21
n
21
ALA
21
A
LYS
22
n
22
LYS
22
A
TYR
23
n
23
TYR
23
A
ARG
24
n
24
ARG
24
A
LEU
25
n
25
LEU
25
A
SER
26
n
26
SER
26
A
PHE
27
n
27
PHE
27
A
CYS
28
n
28
CYS
28
A
ARG
29
n
29
ARG
29
A
LYS
30
n
30
LYS
30
A
THR
31
n
31
THR
31
A
CYS
32
n
32
CYS
32
A
GLY
33
n
33
GLY
33
A
THR
34
n
34
THR
34
A
ABA
35
n
35
ABA
35
A
author_defined_assembly
1
monomeric
A
ABA
3
ALPHA-AMINOBUTYRIC ACID
A
ABA
3
ALA
A
ABA
35
ALPHA-AMINOBUTYRIC ACID
A
ABA
35
ALA
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
1
A
ARG
1
0.305
SIDE CHAIN
1
A
ARG
11
0.279
SIDE CHAIN
1
A
ARG
24
0.323
SIDE CHAIN
1
A
ARG
29
0.274
SIDE CHAIN
2
A
ARG
1
0.319
SIDE CHAIN
2
A
ARG
24
0.317
SIDE CHAIN
2
A
ARG
29
0.294
SIDE CHAIN
3
A
ARG
1
0.317
SIDE CHAIN
3
A
ARG
11
0.319
SIDE CHAIN
3
A
ARG
24
0.321
SIDE CHAIN
3
A
ARG
29
0.307
SIDE CHAIN
4
A
ARG
1
0.274
SIDE CHAIN
4
A
ARG
11
0.317
SIDE CHAIN
4
A
ARG
24
0.299
SIDE CHAIN
4
A
ARG
29
0.242
SIDE CHAIN
5
A
ARG
1
0.322
SIDE CHAIN
5
A
ARG
11
0.309
SIDE CHAIN
5
A
ARG
24
0.320
SIDE CHAIN
5
A
ARG
29
0.312
SIDE CHAIN
6
A
ARG
1
0.321
SIDE CHAIN
6
A
ARG
11
0.300
SIDE CHAIN
6
A
ARG
24
0.191
SIDE CHAIN
6
A
ARG
29
0.271
SIDE CHAIN
7
A
ARG
1
0.319
SIDE CHAIN
7
A
ARG
11
0.312
SIDE CHAIN
7
A
ARG
24
0.316
SIDE CHAIN
7
A
ARG
29
0.324
SIDE CHAIN
8
A
ARG
1
0.283
SIDE CHAIN
8
A
ARG
11
0.304
SIDE CHAIN
8
A
ARG
24
0.181
SIDE CHAIN
8
A
ARG
29
0.324
SIDE CHAIN
9
A
ARG
1
0.327
SIDE CHAIN
9
A
ARG
11
0.314
SIDE CHAIN
9
A
ARG
24
0.279
SIDE CHAIN
9
A
ARG
29
0.253
SIDE CHAIN
10
A
ARG
1
0.317
SIDE CHAIN
10
A
ARG
11
0.289
SIDE CHAIN
10
A
ARG
24
0.296
SIDE CHAIN
10
A
ARG
29
0.297
SIDE CHAIN
11
A
ARG
1
0.317
SIDE CHAIN
11
A
ARG
11
0.313
SIDE CHAIN
11
A
ARG
24
0.115
SIDE CHAIN
11
A
ARG
29
0.306
SIDE CHAIN
12
A
ARG
1
0.317
SIDE CHAIN
12
A
ARG
11
0.320
SIDE CHAIN
12
A
ARG
24
0.320
SIDE CHAIN
12
A
ARG
29
0.316
SIDE CHAIN
13
A
ARG
1
0.316
SIDE CHAIN
13
A
ARG
11
0.316
SIDE CHAIN
13
A
ARG
29
0.316
SIDE CHAIN
14
A
ARG
1
0.231
SIDE CHAIN
14
A
ARG
11
0.312
SIDE CHAIN
14
A
ARG
24
0.307
SIDE CHAIN
14
A
ARG
29
0.215
SIDE CHAIN
15
A
ARG
1
0.315
SIDE CHAIN
15
A
ARG
11
0.303
SIDE CHAIN
15
A
ARG
24
0.305
SIDE CHAIN
15
A
ARG
29
0.310
SIDE CHAIN
16
A
ARG
1
0.314
SIDE CHAIN
16
A
ARG
11
0.303
SIDE CHAIN
16
A
ARG
24
0.315
SIDE CHAIN
16
A
ARG
29
0.317
SIDE CHAIN
17
A
ARG
1
0.311
SIDE CHAIN
17
A
ARG
11
0.301
SIDE CHAIN
17
A
ARG
24
0.317
SIDE CHAIN
17
A
ARG
29
0.317
SIDE CHAIN
18
A
ARG
1
0.312
SIDE CHAIN
18
A
ARG
11
0.317
SIDE CHAIN
18
A
ARG
24
0.314
SIDE CHAIN
18
A
ARG
29
0.100
SIDE CHAIN
19
A
ARG
1
0.241
SIDE CHAIN
19
A
ARG
11
0.286
SIDE CHAIN
19
A
ARG
24
0.317
SIDE CHAIN
19
A
ARG
29
0.323
SIDE CHAIN
20
A
ARG
1
0.314
SIDE CHAIN
20
A
ARG
11
0.307
SIDE CHAIN
20
A
ARG
24
0.305
SIDE CHAIN
20
A
ARG
29
0.265
SIDE CHAIN
1
-3.99
0.50
120.30
116.31
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
11
11
11
N
1
-3.63
0.50
120.30
116.67
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
24
24
24
N
1
8.22
1.10
119.40
127.62
A
A
A
NH1
CZ
NH2
ARG
ARG
ARG
29
29
29
N
1
-4.35
0.50
120.30
115.95
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
29
29
29
N
1
-3.87
0.50
120.30
116.43
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
29
29
29
N
2
-4.81
0.50
120.30
115.49
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
24
24
24
N
2
7.30
1.10
114.20
121.50
A
A
A
CA
CB
SG
CYS
CYS
CYS
32
32
32
N
3
-4.03
0.50
120.30
116.27
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
29
29
29
N
4
-4.54
0.50
120.30
115.76
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
11
11
11
N
4
-3.23
0.50
120.30
117.07
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
24
24
24
N
5
-3.77
0.50
120.30
116.53
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
1
1
1
N
5
7.15
1.10
119.40
126.55
A
A
A
NH1
CZ
NH2
ARG
ARG
ARG
24
24
24
N
5
-4.59
0.50
120.30
115.71
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
24
24
24
N
5
7.10
1.10
114.20
121.30
A
A
A
CA
CB
SG
CYS
CYS
CYS
28
28
28
N
6
-3.66
0.50
120.30
116.64
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
29
29
29
N
7
-3.28
0.50
120.30
117.02
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
11
11
11
N
7
-3.72
0.50
120.30
116.58
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
24
24
24
N
7
8.05
1.10
114.20
122.25
A
A
A
CA
CB
SG
CYS
CYS
CYS
28
28
28
N
7
-3.13
0.50
120.30
117.17
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
29
29
29
N
8
7.55
1.10
114.20
121.75
A
A
A
CA
CB
SG
CYS
CYS
CYS
28
28
28
N
8
-4.56
0.50
120.30
115.74
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
29
29
29
N
9
-3.31
0.50
120.30
116.99
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
1
1
1
N
9
-3.27
0.50
120.30
117.03
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
11
11
11
N
9
-3.17
0.50
120.30
117.13
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
24
24
24
N
10
-3.22
0.50
120.30
117.08
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
24
24
24
N
10
-3.46
0.50
120.30
116.84
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
29
29
29
N
11
-3.00
0.50
120.30
117.30
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
1
1
1
N
11
-3.07
0.50
120.30
117.23
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
11
11
11
N
11
10.64
1.10
114.20
124.84
A
A
A
CA
CB
SG
CYS
CYS
CYS
28
28
28
N
11
-3.63
0.50
120.30
116.67
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
29
29
29
N
12
-3.84
0.50
120.30
116.46
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
11
11
11
N
12
-3.76
0.50
120.30
116.54
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
24
24
24
N
12
-3.15
0.50
120.30
117.15
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
29
29
29
N
13
-3.22
0.50
120.30
117.08
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
1
1
1
N
13
-3.02
0.50
120.30
117.28
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
11
11
11
N
13
6.74
1.10
114.20
120.94
A
A
A
CA
CB
SG
CYS
CYS
CYS
28
28
28
N
13
7.27
1.10
119.40
126.67
A
A
A
NH1
CZ
NH2
ARG
ARG
ARG
29
29
29
N
13
-3.14
0.50
120.30
117.16
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
29
29
29
N
13
-4.13
0.50
120.30
116.17
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
29
29
29
N
14
-3.83
0.50
120.30
116.47
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
11
11
11
N
14
8.59
1.10
114.20
122.79
A
A
A
CA
CB
SG
CYS
CYS
CYS
28
28
28
N
14
-4.37
0.50
120.30
115.93
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
29
29
29
N
15
7.13
1.10
119.40
126.53
A
A
A
NH1
CZ
NH2
ARG
ARG
ARG
24
24
24
N
15
-4.68
0.50
120.30
115.62
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
24
24
24
N
15
11.27
1.10
114.20
125.47
A
A
A
CA
CB
SG
CYS
CYS
CYS
28
28
28
N
15
-3.39
0.50
120.30
116.91
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
29
29
29
N
16
-3.31
0.50
120.30
116.99
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
24
24
24
N
16
9.62
1.10
114.20
123.82
A
A
A
CA
CB
SG
CYS
CYS
CYS
28
28
28
N
16
-3.11
0.50
120.30
117.19
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
29
29
29
N
17
-3.93
0.50
120.30
116.37
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
11
11
11
N
17
-3.17
0.50
120.30
117.13
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
24
24
24
N
17
-3.66
0.50
120.30
116.64
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
29
29
29
N
18
-3.70
0.50
120.30
116.60
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
1
1
1
N
18
-3.07
0.50
120.30
117.23
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
11
11
11
N
18
-3.21
0.50
120.30
117.09
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
24
24
24
N
19
-4.25
0.50
120.30
116.05
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
1
1
1
N
19
-3.53
0.50
120.30
116.77
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
24
24
24
N
19
8.07
1.10
114.20
122.27
A
A
A
CA
CB
SG
CYS
CYS
CYS
28
28
28
N
19
-3.32
0.50
120.30
116.98
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
29
29
29
N
20
-4.40
0.50
120.30
115.90
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
11
11
11
N
20
9.65
1.10
114.20
123.85
A
A
A
CA
CB
SG
CYS
CYS
CYS
12
12
12
N
20
-14.09
2.30
110.00
95.91
A
A
A
OG1
CB
CG2
THR
THR
THR
13
13
13
N
20
6.61
1.10
119.40
126.01
A
A
A
NH1
CZ
NH2
ARG
ARG
ARG
24
24
24
N
20
-4.09
0.50
120.30
116.21
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
24
24
24
N
20
8.10
1.10
114.20
122.30
A
A
A
CA
CB
SG
CYS
CYS
CYS
28
28
28
N
1
A
A
NE2
CD2
HIS
HIS
19
19
-0.070
0.011
1.373
1.303
N
2
A
A
NE2
CD2
HIS
HIS
19
19
-0.068
0.011
1.373
1.305
N
3
A
A
NE2
CD2
HIS
HIS
19
19
-0.068
0.011
1.373
1.305
N
4
A
A
NE2
CD2
HIS
HIS
19
19
-0.071
0.011
1.373
1.302
N
5
A
A
NE2
CD2
HIS
HIS
19
19
-0.070
0.011
1.373
1.303
N
6
A
A
NE2
CD2
HIS
HIS
19
19
-0.071
0.011
1.373
1.302
N
7
A
A
NE2
CD2
HIS
HIS
19
19
-0.069
0.011
1.373
1.304
N
8
A
A
NE2
CD2
HIS
HIS
19
19
-0.070
0.011
1.373
1.303
N
9
A
A
NE2
CD2
HIS
HIS
19
19
-0.071
0.011
1.373
1.302
N
10
A
A
NE2
CD2
HIS
HIS
19
19
-0.070
0.011
1.373
1.303
N
11
A
A
NE2
CD2
HIS
HIS
19
19
-0.068
0.011
1.373
1.305
N
12
A
A
NE2
CD2
HIS
HIS
19
19
-0.069
0.011
1.373
1.304
N
13
A
A
NE2
CD2
HIS
HIS
19
19
-0.070
0.011
1.373
1.303
N
14
A
A
NE2
CD2
HIS
HIS
19
19
-0.072
0.011
1.373
1.301
N
15
A
A
NE2
CD2
HIS
HIS
19
19
-0.070
0.011
1.373
1.303
N
16
A
A
NE2
CD2
HIS
HIS
19
19
-0.071
0.011
1.373
1.302
N
17
A
A
NE2
CD2
HIS
HIS
19
19
-0.070
0.011
1.373
1.303
N
18
A
A
NE2
CD2
HIS
HIS
19
19
-0.070
0.011
1.373
1.303
N
19
A
A
NE2
CD2
HIS
HIS
19
19
-0.069
0.011
1.373
1.304
N
20
A
A
NE2
CD2
HIS
HIS
19
19
-0.073
0.011
1.373
1.300
N
1
A
ABA
3
-52.00
170.67
1
A
ASP
5
-146.29
-126.03
1
A
THR
6
-33.41
-24.84
1
A
PRO
8
-40.34
66.54
1
A
LYS
9
-18.80
66.02
1
A
SER
10
-144.14
-101.67
1
A
GLN
16
-151.50
-66.97
1
A
CYS
17
-29.57
-44.56
1
A
LYS
18
-172.21
71.22
1
A
HIS
19
-29.56
-84.44
1
A
ALA
21
179.72
-12.47
1
A
LEU
25
-90.78
-79.06
1
A
SER
26
178.71
-43.81
1
A
PHE
27
-159.77
-64.50
1
A
ARG
29
-176.55
-89.62
2
A
SER
2
-121.31
-165.49
2
A
ABA
3
-101.09
-166.44
2
A
ILE
4
-111.39
-120.80
2
A
PRO
8
-57.48
83.58
2
A
SER
10
-121.39
-123.10
2
A
GLN
16
-158.30
-52.03
2
A
CYS
17
-29.86
-55.74
2
A
LYS
18
-168.61
77.87
2
A
HIS
19
-29.92
-87.84
2
A
SER
20
-68.24
77.00
2
A
ALA
21
179.80
-12.80
2
A
LEU
25
-91.50
-74.07
2
A
SER
26
178.01
-50.85
2
A
PHE
27
-161.08
-63.28
2
A
ARG
29
-166.91
-56.40
2
A
LYS
30
-66.25
-79.22
2
A
THR
34
-100.83
-75.04
3
A
ABA
3
-47.55
155.53
3
A
ILE
4
-113.30
-92.45
3
A
ASP
5
-120.19
-105.58
3
A
THR
6
-56.76
1.25
3
A
LYS
9
-68.55
73.02
3
A
SER
10
-147.79
-109.52
3
A
GLN
16
-157.34
-60.28
3
A
LYS
18
-174.05
75.21
3
A
HIS
19
-28.80
-94.21
3
A
SER
20
-69.17
34.71
3
A
SER
26
177.85
-67.56
3
A
PHE
27
-157.09
-52.11
3
A
ARG
29
-167.75
-88.54
3
A
THR
34
-102.27
-78.41
4
A
SER
2
-70.79
-150.53
4
A
ILE
4
-114.65
-120.96
4
A
THR
6
-100.80
-121.78
4
A
SER
10
-119.88
-107.87
4
A
GLN
16
-154.92
-60.81
4
A
LYS
18
-165.87
71.06
4
A
HIS
19
-29.76
-79.46
4
A
ALA
21
179.48
-10.81
4
A
LEU
25
-90.54
-72.19
4
A
SER
26
179.58
-50.89
4
A
PHE
27
-162.61
-58.64
4
A
ARG
29
-177.83
-89.40
4
A
THR
34
-111.33
-79.63
5
A
ABA
3
-51.12
172.35
5
A
ILE
4
-108.92
-89.38
5
A
ASP
5
-147.16
-87.08
5
A
THR
6
-18.01
-103.08
5
A
LYS
9
-71.04
30.63
5
A
SER
10
179.97
-110.54
5
A
GLN
16
-152.59
-61.34
5
A
CYS
17
-29.97
-52.21
5
A
LYS
18
-168.90
79.31
5
A
HIS
19
-29.93
-78.63
5
A
SER
20
-69.17
40.42
5
A
LEU
25
-91.77
-66.65
5
A
SER
26
179.75
-51.91
5
A
PHE
27
-160.33
-66.12
5
A
ARG
29
179.03
-88.20
5
A
THR
34
-109.77
-81.74
6
A
SER
2
179.61
-157.49
6
A
ILE
4
-109.41
-123.41
6
A
THR
6
-95.77
-153.42
6
A
LYS
9
-100.67
47.42
6
A
SER
10
-104.47
-111.60
6
A
GLN
16
-150.74
-62.85
6
A
LYS
18
-163.88
68.57
6
A
HIS
19
-28.38
-85.16
6
A
SER
20
-74.39
46.65
6
A
ALA
21
-158.48
-0.32
6
A
SER
26
178.98
-49.83
6
A
PHE
27
-167.27
-50.47
6
A
ARG
29
-170.11
-84.99
6
A
THR
34
-95.37
-80.52
7
A
SER
2
-161.35
-169.60
7
A
ILE
4
-105.88
-119.87
7
A
SER
10
-144.76
-102.56
7
A
GLN
16
-155.28
-59.85
7
A
LYS
18
-162.50
72.06
7
A
HIS
19
-28.51
-75.17
7
A
SER
20
-75.35
44.16
7
A
LEU
25
-98.04
-99.80
7
A
SER
26
-139.82
-47.54
7
A
PHE
27
-152.81
-61.86
7
A
ARG
29
-151.77
-86.85
7
A
THR
34
-110.96
-91.26
8
A
SER
2
-151.82
-151.22
8
A
ILE
4
-115.97
-96.86
8
A
ASP
5
-132.74
-92.84
8
A
THR
6
-18.96
-96.90
8
A
SER
10
-153.08
-110.42
8
A
GLN
16
-157.79
-52.87
8
A
CYS
17
-29.30
-49.69
8
A
LYS
18
-178.33
82.59
8
A
HIS
19
-32.00
-84.80
8
A
SER
20
-61.95
30.11
8
A
LEU
25
-90.60
-71.79
8
A
SER
26
178.63
-47.95
8
A
PHE
27
-158.94
-65.66
8
A
ARG
29
179.71
-34.71
8
A
CYS
32
-98.16
-67.03
8
A
THR
34
-70.60
-84.39
9
A
SER
2
-161.14
114.39
9
A
ASP
5
-120.24
-89.60
9
A
THR
6
-46.86
177.58
9
A
SER
10
-174.76
-100.27
9
A
GLN
16
-152.14
-60.05
9
A
LYS
18
-173.89
74.34
9
A
HIS
19
-29.45
-80.55
9
A
SER
20
-68.35
41.29
9
A
LEU
25
-94.90
-65.49
9
A
SER
26
178.73
-55.52
9
A
PHE
27
-157.18
-63.22
9
A
ARG
29
177.59
-92.51
10
A
SER
2
-105.34
-154.54
10
A
ILE
4
-119.88
-86.80
10
A
ASP
5
-118.05
-98.19
10
A
THR
6
-18.40
-102.91
10
A
ILE
7
-145.10
26.19
10
A
SER
10
-156.03
-138.23
10
A
GLN
16
-152.37
-61.10
10
A
CYS
17
-29.40
-54.39
10
A
LYS
18
-167.21
75.09
10
A
HIS
19
-29.19
-79.66
10
A
SER
20
-66.21
36.70
10
A
SER
26
178.38
-53.24
10
A
PHE
27
-161.00
-62.37
10
A
ARG
29
-164.75
-50.08
10
A
LYS
30
-66.10
-83.54
10
A
THR
31
-59.25
-9.43
10
A
THR
34
-77.01
-73.79
11
A
SER
2
179.87
-172.36
11
A
ABA
3
-33.54
149.63
11
A
ILE
4
-118.72
-86.18
11
A
ASP
5
-118.28
-100.59
11
A
PRO
8
-56.31
80.27
11
A
LYS
9
-30.45
67.14
11
A
SER
10
-147.21
-88.74
11
A
GLN
16
-156.58
-61.00
11
A
LYS
18
-170.30
70.47
11
A
HIS
19
-28.61
-92.23
11
A
ALA
21
-156.36
-9.52
11
A
LEU
25
-93.19
-77.81
11
A
SER
26
178.99
-44.72
11
A
PHE
27
-163.43
-59.45
11
A
ARG
29
-139.33
-87.41
11
A
LYS
30
-29.52
-69.81
11
A
THR
34
-113.74
-83.45
12
A
ABA
3
-45.15
165.72
12
A
ILE
4
-101.43
-66.98
12
A
ASP
5
-162.80
-94.88
12
A
THR
6
-19.17
-96.16
12
A
LYS
9
-62.25
35.85
12
A
SER
10
-173.26
-93.26
12
A
ARG
11
-145.11
36.83
12
A
GLN
16
-151.67
-60.32
12
A
CYS
17
-29.77
-50.67
12
A
LYS
18
-172.55
76.73
12
A
HIS
19
-29.73
-81.33
12
A
ALA
21
-169.31
-7.03
12
A
TYR
23
-59.85
-4.16
12
A
LEU
25
-92.06
-65.18
12
A
SER
26
177.66
-59.13
12
A
PHE
27
-157.15
-64.37
12
A
ARG
29
-178.17
-89.35
13
A
ILE
4
-100.49
-117.95
13
A
LYS
9
-68.13
55.42
13
A
SER
10
-127.30
-118.69
13
A
GLN
16
-156.28
-62.00
13
A
CYS
17
-29.79
-44.44
13
A
LYS
18
-179.19
72.88
13
A
HIS
19
-29.13
-81.95
13
A
ALA
21
-167.89
-11.38
13
A
LEU
25
-80.09
-71.25
13
A
SER
26
177.98
-52.01
13
A
PHE
27
-155.06
-50.89
13
A
ARG
29
-162.85
-31.19
13
A
THR
34
-124.11
-61.51
14
A
SER
2
-139.35
-142.27
14
A
ABA
3
-72.05
-156.10
14
A
ILE
4
-119.29
-129.31
14
A
THR
6
-101.08
-142.76
14
A
PRO
8
-68.42
82.62
14
A
SER
10
-127.90
-99.67
14
A
GLN
16
-156.91
-56.63
14
A
LYS
18
-168.04
74.26
14
A
HIS
19
-29.66
-79.01
14
A
SER
20
-62.86
27.68
14
A
LEU
25
-94.22
-88.02
14
A
SER
26
-161.49
-46.42
14
A
PHE
27
-162.78
-58.14
14
A
ARG
29
-161.13
-49.63
14
A
LYS
30
-70.17
-79.07
14
A
THR
31
-59.49
-9.86
14
A
THR
34
-102.09
-88.34
15
A
SER
2
179.95
-168.32
15
A
ILE
4
-107.63
-124.74
15
A
ASP
5
-85.57
35.02
15
A
PRO
8
-60.05
88.84
15
A
LYS
9
-68.00
71.04
15
A
SER
10
-140.21
-113.91
15
A
GLN
16
-164.80
-62.03
15
A
LYS
18
-161.57
62.29
15
A
HIS
19
-29.56
-84.02
15
A
ALA
21
179.43
-10.00
15
A
LEU
25
-91.75
-62.58
15
A
SER
26
178.55
-55.03
15
A
PHE
27
-152.56
-60.19
15
A
ARG
29
-176.93
-22.53
16
A
SER
2
-133.57
-157.86
16
A
ABA
3
-42.48
162.77
16
A
ILE
4
-107.00
-91.06
16
A
ASP
5
-142.77
-92.20
16
A
THR
6
-19.41
-93.80
16
A
LYS
9
-78.62
24.38
16
A
SER
10
179.21
-111.03
16
A
GLN
16
-151.96
-58.02
16
A
LYS
18
-169.74
69.45
16
A
HIS
19
-29.73
-67.75
16
A
ALA
21
179.28
-4.39
16
A
TYR
23
-61.67
0.83
16
A
SER
26
177.60
-58.92
16
A
PHE
27
-157.64
-64.13
16
A
ARG
29
-149.46
-73.33
16
A
THR
34
-118.42
-98.21
17
A
SER
2
-170.60
-169.08
17
A
ILE
4
-121.05
-82.75
17
A
ASP
5
-139.54
-86.14
17
A
THR
6
-18.52
-113.10
17
A
LYS
9
-69.30
32.00
17
A
SER
10
179.69
-109.20
17
A
GLN
16
-152.37
-62.26
17
A
CYS
17
-29.67
-48.89
17
A
LYS
18
-174.07
72.00
17
A
HIS
19
-28.99
-77.46
17
A
SER
20
-75.98
49.50
17
A
ALA
21
-149.29
-3.36
17
A
LEU
25
-96.10
-62.05
17
A
SER
26
178.77
-54.31
17
A
PHE
27
-163.24
-61.77
17
A
ARG
29
-178.14
-60.09
17
A
LYS
30
-70.56
-74.76
18
A
SER
2
178.98
-151.94
18
A
ASP
5
46.82
-76.23
18
A
THR
6
-101.37
-80.04
18
A
SER
10
-125.60
-136.84
18
A
GLN
16
-153.01
-62.90
18
A
CYS
17
-29.09
-57.99
18
A
LYS
18
-165.93
73.53
18
A
HIS
19
-28.75
-79.03
18
A
SER
20
-72.97
49.91
18
A
ALA
21
-149.94
-1.51
18
A
LEU
25
-91.92
-69.21
18
A
SER
26
178.92
-49.04
18
A
PHE
27
-167.03
-84.17
18
A
ARG
29
-171.52
-90.85
18
A
CYS
32
-102.33
-84.77
19
A
ASP
5
56.81
-82.72
19
A
ILE
7
-131.74
-54.32
19
A
LYS
9
-30.56
65.92
19
A
SER
10
-143.52
-97.09
19
A
GLN
16
-153.74
-62.07
19
A
LYS
18
179.90
72.11
19
A
HIS
19
-28.03
-91.67
19
A
SER
20
-70.81
41.19
19
A
ALA
21
-142.42
-1.52
19
A
LEU
25
-94.05
-79.21
19
A
SER
26
-170.02
-51.44
19
A
PHE
27
-155.43
-71.37
19
A
ARG
29
-151.84
-55.47
19
A
LYS
30
-66.09
-81.95
20
A
SER
2
-118.66
58.16
20
A
ABA
3
-38.96
-34.45
20
A
ASP
5
55.44
-76.84
20
A
THR
6
-101.55
-106.47
20
A
ILE
7
-140.49
47.16
20
A
SER
10
-141.51
-106.42
20
A
ARG
11
-154.36
75.24
20
A
GLN
16
-152.31
-59.33
20
A
LYS
18
-169.32
71.63
20
A
HIS
19
-28.76
-60.59
20
A
SER
26
178.57
-62.35
20
A
PHE
27
-150.95
-65.01
20
A
ARG
29
-167.76
-86.89
20
A
THR
34
-114.17
-85.41
SOLUTION STRUCTURE OF [ABU3,35]SHK12-28,17-32
1
N
N
disulf
2.029
A
CYS
12
A
SG
CYS
12
1_555
A
CYS
28
A
SG
CYS
28
1_555
disulf
2.010
A
CYS
17
A
SG
CYS
17
1_555
A
CYS
32
A
SG
CYS
32
1_555
covale
1.314
both
A
SER
2
A
C
SER
2
1_555
A
ABA
3
A
N
ABA
3
1_555
covale
1.314
both
A
ABA
3
A
C
ABA
3
1_555
A
ILE
4
A
N
ILE
4
1_555
covale
1.307
both
A
THR
34
A
C
THR
34
1_555
A
ABA
35
A
N
ABA
35
1_555
TOXIN
SHK TOXIN, POTASSIUM CHANNEL, DISULPHIDE BONDS, ANALOGUES, STRUCTURE-FUNCTION, SOLUTION STRUCTURE, TOXIN
TXSHK_STOHE
UNP
1
P29187
1
35
1C2U
1
35
P29187
A
1
1
35
1
CYS
engineered mutation
ABA
3
1C2U
A
P29187
UNP
3
3
1
MET
engineered mutation
ALA
21
1C2U
A
P29187
UNP
21
21
1
CYS
engineered mutation
ABA
35
1C2U
A
P29187
UNP
35
35
1
P 1