1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
Gilquin, B.
Lecoq, A.
Desne, F.
Guenneugues, M.
Zinn-Justin, S.
Menez, A.
http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic
1
90.00
90.00
90.00
1.000
1.000
1.000
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
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 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
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
Proteins
PSFGEY
0867
0887-3585
34
520
532
10.1002/(SICI)1097-0134(19990301)34:4<520::AID-PROT11>3.3.CO;2-E
10081964
Conformational and functional variability supported by the BPTI fold: solution structure of the Ca2+ channel blocker calcicludine.
1999
10.2210/pdb1bf0/pdb
pdb_00001bf0
1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
6998.273
CALCICLUDINE
1
nat
polymer
no
no
WQPPWYCKEPVRIGSCKKQFSSFYFKWTAKKCLPFLFSGCGGNANRFQTIGECRKKCLGK
WQPPWYCKEPVRIGSCKKQFSSFYFKWTAKKCLPFLFSGCGGNANRFQTIGECRKKCLGK
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
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
eastern green mamba
venom
sample
8618
Dendroaspis angusticeps
database_2
entity
entity_src_gen
entity_src_nat
pdbx_database_status
pdbx_nmr_software
pdbx_nmr_spectrometer
pdbx_struct_assembly
pdbx_struct_oper_list
repository
Initial release
Version format compliance
Version format compliance
Data collection
Database references
Derived calculations
Other
Source and taxonomy
Structure summary
1
0
1999-01-13
1
1
2008-03-24
1
2
2011-07-13
1
3
2021-10-27
_database_2.pdbx_DOI
_database_2.pdbx_database_accession
_entity.src_method
_pdbx_database_status.process_site
_pdbx_nmr_software.authors
_pdbx_nmr_software.classification
_pdbx_nmr_software.version
_pdbx_nmr_spectrometer.manufacturer
_pdbx_nmr_spectrometer.model
Y
BNL
1998-05-26
REL
REL
COLLECTION OF ANGLE AND DISTANCE CONSTRAINTS WERE DERIVED FROM DQF-COSY AND NOESY EXPERIMENT RESPECTIVELY, CARRIED OUT IN H2O AND D2O. MIXING TIME OF 50, 75, 100 AND 150 MS WERE USED IN THE NOESY EXPERIMENTS. DISTANCE CONSTRAINTS WERE DERIVED FROM THE BUILD-UP CURVES RATES BY APPLYING AN AUTOMATED ITERATIVE ASSIGNMENT PROCEDURE.
LEAST RESTRAINT VIOLATION
100
15
NOESY
COSY
TOCSY
4.5
30
K
DETAILS ON THE STRUCTURE CALCULATION CAN BE FOUND IN THE JRNL CITATION ABOVE.
MD- BASED SIMULATED ANNEALING WITH AMBIGOUS DISTANCE CONSTRAINTS
1
BRUNGER
refinement
X-PLOR
3.1
BRUNGER
structure calculation
X-PLOR
3.1
600
Bruker
DRX
TRP
1
n
1
TRP
1
A
GLN
2
n
2
GLN
2
A
PRO
3
n
3
PRO
3
A
PRO
4
n
4
PRO
4
A
TRP
5
n
5
TRP
5
A
TYR
6
n
6
TYR
6
A
CYS
7
n
7
CYS
7
A
LYS
8
n
8
LYS
8
A
GLU
9
n
9
GLU
9
A
PRO
10
n
10
PRO
10
A
VAL
11
n
11
VAL
11
A
ARG
12
n
12
ARG
12
A
ILE
13
n
13
ILE
13
A
GLY
14
n
14
GLY
14
A
SER
15
n
15
SER
15
A
CYS
16
n
16
CYS
16
A
LYS
17
n
17
LYS
17
A
LYS
18
n
18
LYS
18
A
GLN
19
n
19
GLN
19
A
PHE
20
n
20
PHE
20
A
SER
21
n
21
SER
21
A
SER
22
n
22
SER
22
A
PHE
23
n
23
PHE
23
A
TYR
24
n
24
TYR
24
A
PHE
25
n
25
PHE
25
A
LYS
26
n
26
LYS
26
A
TRP
27
n
27
TRP
27
A
THR
28
n
28
THR
28
A
ALA
29
n
29
ALA
29
A
LYS
30
n
30
LYS
30
A
LYS
31
n
31
LYS
31
A
CYS
32
n
32
CYS
32
A
LEU
33
n
33
LEU
33
A
PRO
34
n
34
PRO
34
A
PHE
35
n
35
PHE
35
A
LEU
36
n
36
LEU
36
A
PHE
37
n
37
PHE
37
A
SER
38
n
38
SER
38
A
GLY
39
n
39
GLY
39
A
CYS
40
n
40
CYS
40
A
GLY
41
n
41
GLY
41
A
GLY
42
n
42
GLY
42
A
ASN
43
n
43
ASN
43
A
ALA
44
n
44
ALA
44
A
ASN
45
n
45
ASN
45
A
ARG
46
n
46
ARG
46
A
PHE
47
n
47
PHE
47
A
GLN
48
n
48
GLN
48
A
THR
49
n
49
THR
49
A
ILE
50
n
50
ILE
50
A
GLY
51
n
51
GLY
51
A
GLU
52
n
52
GLU
52
A
CYS
53
n
53
CYS
53
A
ARG
54
n
54
ARG
54
A
LYS
55
n
55
LYS
55
A
LYS
56
n
56
LYS
56
A
CYS
57
n
57
CYS
57
A
LEU
58
n
58
LEU
58
A
GLY
59
n
59
GLY
59
A
LYS
60
n
60
LYS
60
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
identity operation
0.0000000000
0.0000000000
0.0000000000
A
O
PHE
20
A
O
PHE
20
A
N
PHE
37
A
N
PHE
37
3
A
A
HG
O
SER
PHE
22
35
1.59
5
A
A
HH21
O
ARG
LYS
54
60
1.57
6
A
A
HZ1
H
LYS
GLN
18
19
1.32
8
A
A
OE1
HG
GLN
SER
19
38
1.58
9
A
A
OE1
HG1
GLN
THR
48
49
1.59
12
A
A
O
HG
ILE
SER
13
38
1.57
13
A
A
HZ1
HH12
LYS
ARG
31
54
1.03
14
A
A
O
HG
ILE
SER
13
38
1.57
14
A
A
O
HG
GLY
SER
14
15
1.58
15
A
A
O
HG
LYS
SER
18
38
1.57
2
A
ARG
46
0.172
SIDE CHAIN
2
A
ARG
54
0.151
SIDE CHAIN
5
A
ARG
12
0.185
SIDE CHAIN
5
A
ARG
46
0.081
SIDE CHAIN
5
A
ARG
54
0.078
SIDE CHAIN
7
A
ARG
46
0.074
SIDE CHAIN
8
A
ARG
12
0.125
SIDE CHAIN
8
A
ARG
46
0.086
SIDE CHAIN
10
A
ARG
46
0.099
SIDE CHAIN
12
A
ARG
12
0.093
SIDE CHAIN
12
A
ARG
54
0.103
SIDE CHAIN
14
A
ARG
46
0.089
SIDE CHAIN
1
3.14
0.50
120.30
123.44
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
12
12
12
N
1
4.94
0.50
120.30
125.24
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
46
46
46
N
1
-3.55
0.50
120.30
116.75
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
46
46
46
N
1
5.70
0.50
120.30
126.00
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
54
54
54
N
1
-4.72
0.50
120.30
115.58
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
54
54
54
N
2
11.92
1.90
113.70
125.62
A
A
A
CA
CB
CG
TRP
TRP
TRP
5
5
5
N
2
3.99
0.50
120.30
124.29
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
46
46
46
N
2
3.53
0.50
120.30
123.83
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
54
54
54
N
2
-3.05
0.50
120.30
117.25
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
54
54
54
N
3
9.63
1.60
110.90
120.53
A
A
A
CG1
CB
CG2
VAL
VAL
VAL
11
11
11
N
3
6.65
0.50
120.30
126.95
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
46
46
46
N
3
3.01
0.50
120.30
123.31
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
54
54
54
N
3
-3.59
0.50
120.30
116.71
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
54
54
54
N
4
7.55
0.50
120.30
127.85
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
46
46
46
N
4
-3.64
0.50
120.30
116.66
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
46
46
46
N
4
4.33
0.70
120.80
125.13
A
A
A
CB
CG
CD1
PHE
PHE
PHE
47
47
47
N
5
-4.36
0.60
121.00
116.64
A
A
A
CB
CG
CD2
TYR
TYR
TYR
6
6
6
N
5
-3.70
0.50
120.30
116.60
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
12
12
12
N
5
3.92
0.50
120.30
124.22
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
54
54
54
N
5
-4.72
0.50
120.30
115.58
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
54
54
54
N
6
4.61
0.50
120.30
124.91
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
12
12
12
N
6
5.20
0.50
120.30
125.50
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
46
46
46
N
6
3.76
0.50
120.30
124.06
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
54
54
54
N
6
-6.01
0.50
120.30
114.29
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
54
54
54
N
7
4.33
0.70
120.80
125.13
A
A
A
CB
CG
CD1
PHE
PHE
PHE
37
37
37
N
7
8.78
1.10
114.20
122.98
A
A
A
CA
CB
SG
CYS
CYS
CYS
40
40
40
N
7
10.04
0.50
120.30
130.34
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
46
46
46
N
7
-8.64
0.50
120.30
111.66
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
46
46
46
N
8
6.88
1.10
114.20
121.08
A
A
A
CA
CB
SG
CYS
CYS
CYS
40
40
40
N
8
-7.01
1.10
119.40
112.39
A
A
A
NH1
CZ
NH2
ARG
ARG
ARG
46
46
46
N
8
6.44
0.50
120.30
126.74
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
46
46
46
N
8
3.91
0.50
120.30
124.21
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
54
54
54
N
9
8.96
0.50
120.30
129.26
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
46
46
46
N
9
-3.07
0.50
120.30
117.23
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
46
46
46
N
9
5.09
0.50
120.30
125.39
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
54
54
54
N
9
-6.07
0.50
120.30
114.23
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
54
54
54
N
10
3.51
0.50
120.30
123.81
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
12
12
12
N
10
4.33
0.70
120.80
125.13
A
A
A
CB
CG
CD1
PHE
PHE
PHE
37
37
37
N
10
7.71
0.50
120.30
128.01
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
46
46
46
N
10
-4.19
0.50
120.30
116.11
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
46
46
46
N
10
4.18
0.50
120.30
124.48
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
54
54
54
N
11
6.43
0.50
120.30
126.73
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
12
12
12
N
11
4.81
0.50
120.30
125.11
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
46
46
46
N
11
4.53
0.50
120.30
124.83
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
54
54
54
N
11
-8.20
0.50
120.30
112.10
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
54
54
54
N
12
-5.13
0.70
120.80
115.67
A
A
A
CB
CG
CD2
PHE
PHE
PHE
37
37
37
N
12
6.72
0.70
120.80
127.52
A
A
A
CB
CG
CD1
PHE
PHE
PHE
37
37
37
N
12
10.04
0.50
120.30
130.34
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
46
46
46
N
12
-5.53
0.50
120.30
114.77
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
46
46
46
N
12
4.79
0.50
120.30
125.09
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
54
54
54
N
12
-3.64
0.50
120.30
116.66
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
54
54
54
N
13
4.69
0.70
120.80
125.49
A
A
A
CB
CG
CD1
PHE
PHE
PHE
37
37
37
N
13
7.81
0.50
120.30
128.11
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
46
46
46
N
13
-3.87
0.50
120.30
116.43
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
46
46
46
N
13
5.33
0.70
120.80
126.13
A
A
A
CB
CG
CD1
PHE
PHE
PHE
47
47
47
N
13
3.23
0.50
120.30
123.53
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
54
54
54
N
14
-5.29
0.70
120.80
115.51
A
A
A
CB
CG
CD2
PHE
PHE
PHE
37
37
37
N
14
6.08
0.70
120.80
126.88
A
A
A
CB
CG
CD1
PHE
PHE
PHE
37
37
37
N
14
10.78
0.50
120.30
131.08
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
46
46
46
N
14
-8.15
0.50
120.30
112.15
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
46
46
46
N
14
4.00
0.50
120.30
124.30
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
54
54
54
N
14
-3.90
0.50
120.30
116.40
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
54
54
54
N
15
8.21
0.50
120.30
128.51
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
46
46
46
N
15
-3.19
0.50
120.30
117.11
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
46
46
46
N
1
A
PRO
4
-92.07
-113.93
1
A
TRP
5
-85.55
-70.46
1
A
LYS
17
-77.74
44.36
1
A
LYS
30
89.30
19.42
1
A
ASN
43
-136.93
-106.60
1
A
ALA
44
-167.75
29.32
2
A
PRO
4
-77.76
-115.88
2
A
SER
15
-171.24
76.03
2
A
CYS
16
-125.13
-71.76
2
A
LYS
17
-96.70
-80.08
2
A
LYS
18
-146.87
-145.61
2
A
SER
22
-120.26
-167.11
2
A
LYS
30
80.01
26.39
2
A
ASN
43
-134.37
-99.81
2
A
ALA
44
-150.79
24.40
2
A
ASN
45
-101.70
48.20
2
A
LYS
56
-167.77
-47.03
3
A
PRO
4
-94.46
-113.22
3
A
LYS
17
-111.05
58.27
3
A
CYS
40
-114.12
56.22
3
A
ASN
43
-113.07
-112.88
3
A
ALA
44
-141.64
-9.31
3
A
ASN
45
-101.53
57.20
3
A
LYS
56
-179.62
-39.81
3
A
LEU
58
-140.58
-8.97
4
A
PRO
4
-91.78
-123.15
4
A
TRP
5
-73.09
-74.14
4
A
CYS
16
-125.89
-127.55
4
A
LYS
17
-79.90
-99.40
4
A
LYS
30
84.36
23.59
4
A
PHE
35
-149.55
-159.24
4
A
ASN
43
-127.31
-92.98
4
A
ALA
44
-136.52
-30.00
5
A
PRO
4
-94.11
-116.92
5
A
TYR
6
-48.44
-7.77
5
A
ILE
13
-155.49
-55.42
5
A
SER
15
-176.66
134.73
5
A
CYS
16
-176.03
-63.77
5
A
LYS
17
-105.29
-98.46
5
A
SER
22
-125.50
-159.62
5
A
ASN
43
-88.48
-78.49
5
A
ASN
45
-109.45
78.49
5
A
LEU
58
-136.54
-32.41
6
A
PRO
4
-96.59
-114.38
6
A
ILE
13
-125.18
-54.03
6
A
SER
15
-150.66
52.65
6
A
LYS
30
81.96
22.28
6
A
CYS
40
-79.45
34.23
6
A
ALA
44
-177.35
-21.95
7
A
PRO
4
-73.79
-110.31
7
A
TRP
5
-88.91
-76.52
7
A
TYR
6
-29.65
-51.88
7
A
SER
15
76.12
67.60
7
A
CYS
16
-125.26
-63.05
7
A
LYS
17
-90.79
-86.27
7
A
SER
22
-120.70
-166.25
7
A
LYS
30
81.11
24.60
7
A
PHE
35
-114.87
-168.86
7
A
ASN
43
-136.39
-103.78
7
A
ALA
44
-155.33
5.03
7
A
ASN
45
-95.88
53.55
7
A
LEU
58
-146.00
-23.73
8
A
PRO
4
-85.25
-116.08
8
A
TRP
5
-81.72
-72.53
8
A
SER
15
78.00
81.73
8
A
CYS
16
-143.77
-80.74
8
A
LYS
17
-86.74
-104.69
8
A
LYS
30
85.15
20.55
8
A
ASN
43
-124.87
-115.75
8
A
ALA
44
-141.49
19.61
8
A
ASN
45
-91.25
36.59
9
A
PRO
4
-88.63
-109.42
9
A
TRP
5
-88.25
-72.26
9
A
SER
15
-173.39
134.24
9
A
CYS
16
-167.86
-63.06
9
A
LYS
17
-118.86
-89.18
9
A
PHE
35
-138.49
-156.22
9
A
CYS
40
-144.15
56.82
9
A
ASN
43
-95.30
-101.25
9
A
LEU
58
-140.47
-20.07
10
A
PRO
4
-77.56
-117.01
10
A
SER
15
-153.65
38.85
10
A
LYS
30
84.09
25.77
10
A
ALA
44
41.77
-34.63
11
A
PRO
4
-93.30
-113.40
11
A
TRP
5
-86.49
-70.62
11
A
ILE
13
-159.07
-35.80
11
A
SER
15
90.89
49.50
11
A
CYS
16
-92.41
-158.77
11
A
LYS
30
86.39
27.16
11
A
ASN
43
-88.90
-99.17
11
A
ALA
44
-144.78
-9.38
12
A
PRO
4
-77.41
-120.22
12
A
SER
15
-158.36
40.73
12
A
LYS
30
77.45
30.20
12
A
SER
38
-77.84
-82.54
12
A
ASN
43
-136.76
-156.68
13
A
PRO
4
-74.52
-115.48
13
A
TRP
5
-87.75
-72.30
13
A
SER
15
-162.75
69.28
13
A
CYS
16
-117.69
-85.33
13
A
LYS
17
-101.74
-64.81
13
A
LYS
18
-143.96
-153.39
13
A
SER
22
-116.53
-168.24
13
A
ASN
43
-124.30
-106.53
13
A
ALA
44
-152.92
6.79
13
A
ASN
45
-104.17
46.43
14
A
PRO
4
-96.29
-116.09
14
A
SER
15
87.91
28.91
14
A
CYS
16
-70.16
-89.95
14
A
LYS
18
-148.00
-136.50
14
A
PHE
35
-145.42
-157.73
14
A
ASN
43
-125.01
-96.00
14
A
ALA
44
-145.30
-16.56
15
A
PRO
4
-76.09
-110.53
15
A
TRP
5
-88.46
-70.47
15
A
SER
15
77.22
70.70
15
A
CYS
16
-128.72
-72.61
15
A
LYS
17
-97.49
-76.29
15
A
LYS
18
-146.71
-152.56
15
A
LYS
30
83.45
26.38
15
A
ASN
43
-119.72
-100.13
15
A
ALA
44
-158.75
17.87
15
A
ASN
45
-106.69
55.64
15
A
LEU
58
-145.98
-27.62
model building
X-PLOR
3.1
refinement
X-PLOR
3.1
phasing
X-PLOR
3.1
CALCICLUDINE (CAC) FROM GREEN MAMBA DENDROASPIS ANGUSTICEPS, NMR, 15 STRUCTURES
1
Y
N
A
TRP
5
A
TRP
5
HELX_P
A
LYS
8
A
LYS
8
5
H1
4
A
ILE
50
A
ILE
50
HELX_P
A
LEU
58
A
LEU
58
5
H2
9
disulf
2.034
A
CYS
7
A
SG
CYS
7
1_555
A
CYS
57
A
SG
CYS
57
1_555
disulf
2.060
A
CYS
16
A
SG
CYS
16
1_555
A
CYS
40
A
SG
CYS
40
1_555
disulf
2.000
A
CYS
32
A
SG
CYS
32
1_555
A
CYS
53
A
SG
CYS
53
1_555
CALCIUM CHANNEL BLOCKER
CALCIUM CHANNEL BLOCKER
TXCA_DENAN
UNP
1
1
P81658
WQPPWYCKEPVRIGSCKKQFSSFYFKWTAKKCLPFLFSGCGGNANRFQTIGECRKKCLGK
1
60
1BF0
1
60
P81658
A
1
1
60
2
anti-parallel
A
PHE
20
A
PHE
20
A
LYS
26
A
LYS
26
A
LYS
31
A
LYS
31
A
PHE
37
A
PHE
37
1
P 1