1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
Rogers, J.P.
Luginbuhl, P.
Pemberton, K.
Harty, P.
Wemmer, D.E.
Stevens, R.C.
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 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
H2 N
16.023
AMINO GROUP
non-polymer
C5 H9 N O2
115.130
y
PROLINE
L-peptide linking
C3 H7 N O3
105.093
y
SERINE
L-peptide linking
C11 H12 N2 O2
204.225
y
TRYPTOPHAN
L-peptide linking
UK
J.Mol.Biol.
JMOBAK
0070
0022-2836
304
911
10.1006/JMBI.2000.4247
11124036
Structure-Activity Relationships in a Peptidic Alpha7 Nicotinic Acetylcholine Receptor Antagonist
2000
US
Biochemistry
BICHAW
0033
0006-2960
38
3874
10.1021/BI9826254
10194298
NMR Solution Structure of Alpha-Conotoxin Imi and Comparison to Other Conotoxins Specific for Neuronal Nicotinic Acetylcholine Receptors
1999
US
Mol.Pharmacol.
MOPMA3
0197
0026-895X
48
194
7651351
Alpha-Conotoxin Imi Exhibits Subtype-Specific Nicotinic Acetylcholine Receptor Blockade: Preferential Inhibition of Homomeric Alpha7 and Alpha9 Receptors
1995
US
J.Biol.Chem.
JBCHA3
0071
0021-9258
269
16733
8206995
A Nicotinic Acetylcholine Receptor Ligand of Unique Specificity, Alpha-Conotoxin Imi
1994
10.2210/pdb1e74/pdb
pdb_00001e74
1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
1328.521
ALPHA-CONOTOXIN IM1(R11E)
YES
1
syn
polymer
no
yes
GCCSDPRCAWEC(NH2)
GCCSDPRCAWECX
A
polypeptide(L)
n
n
n
n
n
n
n
n
n
n
n
n
n
pdbx_nmr_representative
pdbx_database_status
struct_conn
database_2
pdbx_database_status
repository
Initial release
Version format compliance
Version format compliance
Structure summary
Derived calculations
Other
Database references
Other
1
0
2000-12-27
1
1
2011-05-08
1
2
2011-07-13
1
3
2017-06-14
1
4
2020-01-15
1
5
2023-06-14
_pdbx_nmr_representative.conformer_id
_pdbx_nmr_representative.selection_criteria
_pdbx_database_status.status_code_cs
_pdbx_database_status.status_code_mr
_struct_conn.pdbx_leaving_atom_flag
_database_2.pdbx_DOI
_database_2.pdbx_database_accession
_pdbx_database_status.status_code_nmr_data
NMR SOLUTION STRUCTURE OF ALPHA-CONOTOXIN IM1 POINT MUTATION VARIANT R7L (20 STRUCTURES)
NMR SOLUTION STRUCTURE OF ALPHA-CONOTOXIN IM1 POINT MUTATION VARIANT D5N (20 STRUCTURES)
NMR SOLUTION STRUCTURE OF ALPHA-CONOTOXIN IM1, (20 STRUCTURES)
SOLUTION STRUCTURE OF ALPHA-CONOTOXIN IM1
ALPHA-CONOTOXIN IMI (10 STRUCTURES)
PDBE
Y
PDBE
2000-08-24
REL
REL
REL
REL
SYNTHESIZED USING STANDARD FMOC CHEMISTRY. IM1 SEQUENCE FOUND NATURALLY IN CONUS IMPERIALIS VENOM
35631
CONUS IMPERIALIS
sample
DATA CONSIST OF 61 UPPER LIMITS ON DISTANCES OBTAINED FROM NOE MEASUREMENTS AND 26 ANGLE CONSTRAINTS OBTAINED FROM NOE MEASUREMENTS AND COUPLING CONSTANT MEASUREMENTS. THESE INPUT DATA ARE ALSO AVAILABLE FROM THE PROTEIN DATA BANK. ONE STEREOSPECIFIC RESONANCE ASSIGNMENT HAS BEEN MADE. TORSION ANGLE DYNAMICS CALCULATIONS WERE PERFORMED WITH THE PROGRAM DYANA (P. GUNTERT, C. MUMENTHALER, K. WUTHRICH, J. MOL. BIOL. (1997) VOL. 273, 283-298). FOR THE RESTRAINED ENERGY MINIMIZATION THE PROGRAM OPAL (P. LUGINBUHL, P. GUNTERT, M. BILLETER, K. WUTHRICH, J. BIOMOL. NMR (1996) VOL. 8, 136-146) WAS USED. DEPOSITED COORDINATES ARE THOSE OF CONFORMERS 1-20 IN THE PAPER CITED ON *JRNL* RECORDS ABOVE. NO VIOLATIONS OF DISTANCE CONSTRAINTS FROM NOES EXCEED 0.10 ANGSTROMS, AND NO VIOLATIONS OF ANGLE CONSTRAINTS EXCEED 2.0 DEGREES. REPRESENTATIVE CONFORMER HAS THE SMALLEST RMSD TO THE MEAN STRUCTURE UPON SUPERPOSITION OF THE BACKBONE ATOMS N, CA, AND C' OF RESIDUES 2-11.
LOWEST RESIDUAL TARGET FUNCTION
40
20
TOCSY
ROESY
DQF-COSY
3.1
pH
298
K
FOR THE PRESENT STRUCTURES THE NMR DISTANCE CONSTRAINTS WERE WEIGHTED SUCH THAT A VIOLATION OF AN UPPER DISTANCE LIMIT OF 0.1 ANGSTROM CORRESPONDS TO AN ENERGY OF KT/2. THE CONSTRAINTS ON DIHEDRAL ANGLES RESULTING FROM MEASUREMENTS OF VICINAL COUPLING CONSTANTS WERE WEIGHTED SUCH THAT A VIOLATION OF 2.5 DEGREES CORRESPONDS TO AN ENERGY OF KT/2.
TORSION ANGLE DYNAMICS, RESTRAINED ENERGY MINIMISATION
6
lowest energy
LUGINBUHL,GUNTERT,BILLETER,WUTHRICH
refinement
OPAL
structure solution
DYANA
structure solution
OPAL
400
Bruker
DRX
GLY
1
n
1
GLY
1
A
CYS
2
n
2
CYS
2
A
CYS
3
n
3
CYS
3
A
SER
4
n
4
SER
4
A
ASP
5
n
5
ASP
5
A
PRO
6
n
6
PRO
6
A
ARG
7
n
7
ARG
7
A
CYS
8
n
8
CYS
8
A
ALA
9
n
9
ALA
9
A
TRP
10
n
10
TRP
10
A
GLU
11
n
11
GLU
11
A
CYS
12
n
12
CYS
12
A
NH2
13
n
13
NH2
13
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
2
7.97
1.20
111.50
119.47
A
A
A
CB
CA
C
CYS
CYS
CYS
12
12
12
N
2
8.96
1.10
114.20
123.16
A
A
A
CA
CB
SG
CYS
CYS
CYS
12
12
12
N
3
7.48
1.20
111.50
118.98
A
A
A
CB
CA
C
CYS
CYS
CYS
12
12
12
N
3
9.56
1.10
114.20
123.76
A
A
A
CA
CB
SG
CYS
CYS
CYS
12
12
12
N
4
8.45
1.10
114.20
122.65
A
A
A
CA
CB
SG
CYS
CYS
CYS
12
12
12
N
8
8.20
1.10
114.20
122.40
A
A
A
CA
CB
SG
CYS
CYS
CYS
12
12
12
N
9
7.81
1.20
111.50
119.31
A
A
A
CB
CA
C
CYS
CYS
CYS
12
12
12
N
9
7.28
1.10
114.20
121.48
A
A
A
CA
CB
SG
CYS
CYS
CYS
12
12
12
N
10
7.37
1.20
111.50
118.87
A
A
A
CB
CA
C
CYS
CYS
CYS
12
12
12
N
11
10.55
1.20
111.50
122.05
A
A
A
CB
CA
C
CYS
CYS
CYS
12
12
12
N
11
11.17
1.10
114.20
125.37
A
A
A
CA
CB
SG
CYS
CYS
CYS
12
12
12
N
2
A
ALA
9
-60.99
12.74
2
A
GLU
11
-141.91
-3.84
3
A
CYS
2
45.62
18.48
3
A
ALA
9
-62.58
0.27
4
A
CYS
2
65.49
-18.73
4
A
ALA
9
-62.00
2.69
6
A
ALA
9
-57.68
-5.55
7
A
CYS
2
-153.74
-44.93
8
A
GLU
11
-140.43
-18.58
9
A
ALA
9
-58.23
-4.33
10
A
CYS
2
63.93
-27.08
10
A
ALA
9
-59.50
-6.03
11
A
CYS
2
69.70
-37.36
12
A
CYS
2
82.00
-4.42
12
A
ALA
9
-67.37
23.03
12
A
GLU
11
-146.09
-32.25
14
A
ALA
9
-67.48
20.79
14
A
TRP
10
-66.74
-93.86
15
A
CYS
2
68.48
-42.02
16
A
CYS
2
69.80
-39.14
16
A
ALA
9
-66.58
7.89
16
A
TRP
10
-56.76
-72.95
17
A
CYS
2
58.58
-5.25
18
A
CYS
2
-153.79
-45.60
18
A
ALA
9
-72.08
49.08
19
A
CYS
3
-63.03
2.39
19
A
ALA
9
-63.86
4.74
19
A
GLU
11
-144.43
-8.43
20
A
CYS
2
-69.58
22.87
20
A
CYS
8
-126.10
-92.15
20
A
ALA
9
38.66
35.49
NMR SOLUTION STRUCTURE OF ALPHA-CONOTOXIN IM1 POINT MUTATION VARIANT R11E
1
N
N
A
GLY
1
A
GLY
1
HELX_P
A
ALA
9
A
ALA
9
5
1
9
disulf
2.037
A
CYS
2
A
SG
CYS
2
1_555
A
CYS
8
A
SG
CYS
8
1_555
disulf
2.035
A
CYS
3
A
SG
CYS
3
1_555
A
CYS
12
A
SG
CYS
12
1_555
covale
1.322
both
A
CYS
12
A
C
CYS
12
1_555
A
NH2
13
A
N
NH2
13
1_555
PEPTIDE TOXIN
PEPTIDE TOXIN, NEUROTOXIN, NEURONAL NICOTINIC ACETYLCHOLINE RECEPTOR ANTAGONIST, ALPHA-CONOTOXIN, NMR SOLUTION STRUCTURE
CXA1_CONIM
UNP
1
P50983
1
12
1E74
1
12
P50983
A
1
1
12
1
ARG
engineered mutation
GLU
11
1E74
A
P50983
UNP
11
11
1
P 1