1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
Pashkov, V.S.
Maslennikov, I.V.
Tchikin, L.D.
Efremov, R.G.
Ivanov, V.T.
Arseniev, A.S.
http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic
1
90.00
90.00
90.00
1.000
1.000
1.000
C4 H7 N O4
133.103
y
ASPARTIC ACID
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
C5 H11 N O2 S
149.211
y
METHIONINE
L-peptide linking
H2 N
16.023
AMINO GROUP
non-polymer
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
C5 H11 N O2
117.146
y
VALINE
L-peptide linking
NE
FEBS Lett.
FEBLAL
0165
0014-5793
457
117
10.1016/S0014-5793(99)01023-6
10486576
Spatial Structure of the M2 Transmembrane Segment of the Nicotinic Acetylcholine Receptor Alpha-Subunit
1999
1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
THE C-TERMINAL RESIDUE OF THE PEPTIDE IS AMIDATED. THE COMPLETE RECEPTOR CONSISTS OF A PENTAMER OF TWO ALPHA CHAINS, AND ONE EACH OF THE BETA, DELTA, AND GAMMA CHAINS
3416.075
ACETYLCHOLINE RECEPTOR PROTEIN, ALPHA CHAIN
M2 TRANSMEMBRANE SEGMENT
1
syn
polymer
no
yes
PTDSGEKMTLSISVLLSLTVFLLVIVELIPST(NH2)
PTDSGEKMTLSISVLLSLTVFLLVIVELIPSTX
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
repository
Initial release
Version format compliance
Version format compliance
1
0
2000-02-02
1
1
2011-05-07
1
2
2011-07-13
ALPHA-BUNGAROTOXIN COMPLEXED WITH THE 185 - 196 FRAGMENT OF THE ALPHA-SUBUNIT OF THE TORPEDO NICOTINIC ACETYLCHOLINE RECEPTOR (NMR, 4 STRUCTURES)
ACETYLCHOLINE RECEPTOR, MAIN IMMUNOGENIC REGION (NMR, 5 STRUCTURES)
TORPEDO CALIFORNICA ACHR RECEPTOR [ALA76] ANALOGUE COMPLEXED WITH THE ANTI-ACETYLCHOLINE MAB6 MONOCLONAL ANTIBODY
PDBE
Y
PDBE
2000-01-20
REL
7787
PACIFIC ELECTRIC RAY
TORPEDO CALIFORNICA
sample
THE COMPLETE RECEPTOR CONSISTS OF A PENTAMER OF TWO ALPHA
CHAINS, AND ONE EACH OF THE BETA, DELTA, AND GAMMA CHAINS.
THE PEPTIDE STUDIED HERE REPRESENTS THE SECOND TRANS-MEMBRANE
SEGMENT OF THE ALPHA CHAIN OF ACETYLCHOLINE RECEPTOR PROTEIN,
ALPHA CHAIN (RESIDUES 267 TO 285)
AMINO ACIDS NUMERATION IN THE ENTRY DOES NOT INCLUDE THE
SIGNAL SEQUENCE. THE C-TERMINAL RESIDUE OF THIS ENTRY,
THR267, IS AMIDATED.
THE STRUCTURE WAS DETERMINED USING 2D-1H-NMR SPECTROSCOPY IN THE MEDIUM WHICH SHOULD BE ADEQUATE FOR THE M2 SEGMENT WITH ITS NON-LIPID SURROUNDING IN THE INTACT NICOTINIC ACTYLCHOLINE RECEPTOR. THE PH GIVEN IN THE EXPERIMENTAL DETAILS IS AN APPROXIMATION ONLY FOR THE MIXTURE OF ORGANIC SOLVENTS USED.
LEAST RESTRAINTS VIOLATION
300
20
DQF-COSY
TOCSY
NOESY
0.1 M LICLO4
4.0
pH
1
atm
303
K
REFINEMENT DETAILS CAN BE FOUND IN THE JRNL CITATION ABOVE. THE NMR STUDY HAS BEEN CONDUCTED USING THE SYNTHETIC PEPTIDE WITH METHIONINE 243 REPLACED BY NORLEUCINE. SUCH AN ISOSTERIC REPLACEMENT USUALLY DOES NOT AFFECT THE PEPTIDE CONFORMATION, WHILE SYMPLIFYING THE SYNTHESIS. TO AVOID DIFFICULTIES WHICH MAY ARISE FROM THE PRESENCE OF A NONSTANDARD AMINO ACID RESIDUE AS WELL AS FOR THE PURPOSE OF AGREEMENT BETWEEN THE NATIVE M2 FRAGMENT AND THE CONFORMERS TO BE DEPOSITED, THE NORLEUCINE RESIDUE WAS REPLACED BY METHIONINE.
distance geometry
4
CDCL3/CD3OH=1/1 WITH 0.1 M LICLO4
R.FRACZKIEWICZ,C.MUMENTHALER,B. VON FREYBERG, T.SCHAUMANN,W.BRAUN
refinement
FANTOM
4.0
structure solution
VARIAN VNMR
VNMR
structure solution
XEASY
structure solution
DYANA
structure solution
MARDIGRAS
600
Varian
UNITY
PRO
236
n
1
PRO
236
A
THR
237
n
2
THR
237
A
ASP
238
n
3
ASP
238
A
SER
239
n
4
SER
239
A
GLY
240
n
5
GLY
240
A
GLU
241
n
6
GLU
241
A
LYS
242
n
7
LYS
242
A
MET
243
n
8
MET
243
A
THR
244
n
9
THR
244
A
LEU
245
n
10
LEU
245
A
SER
246
n
11
SER
246
A
ILE
247
n
12
ILE
247
A
SER
248
n
13
SER
248
A
VAL
249
n
14
VAL
249
A
LEU
250
n
15
LEU
250
A
LEU
251
n
16
LEU
251
A
SER
252
n
17
SER
252
A
LEU
253
n
18
LEU
253
A
THR
254
n
19
THR
254
A
VAL
255
n
20
VAL
255
A
PHE
256
n
21
PHE
256
A
LEU
257
n
22
LEU
257
A
LEU
258
n
23
LEU
258
A
VAL
259
n
24
VAL
259
A
ILE
260
n
25
ILE
260
A
VAL
261
n
26
VAL
261
A
GLU
262
n
27
GLU
262
A
LEU
263
n
28
LEU
263
A
ILE
264
n
29
ILE
264
A
PRO
265
n
30
PRO
265
A
SER
266
n
31
SER
266
A
THR
267
n
32
THR
267
A
NH2
268
n
33
NH2
268
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
SER
239
-159.28
70.61
2
A
SER
239
-147.13
-58.57
2
A
GLU
241
71.32
-67.07
2
A
SER
266
-171.12
-47.85
3
A
ASP
238
171.04
-46.85
4
A
ASP
238
163.95
126.23
4
A
SER
266
179.28
-64.74
5
A
ASP
238
-162.51
-55.91
5
A
SER
266
179.24
-44.59
6
A
ASP
238
-159.20
-58.45
7
A
SER
239
-150.63
-62.75
7
A
SER
266
178.73
-51.88
8
A
ASP
238
162.24
-39.96
8
A
SER
239
-73.63
-71.85
8
A
GLU
241
68.47
-123.23
9
A
THR
237
47.50
-168.54
9
A
ASP
238
173.96
-65.44
9
A
GLU
241
64.22
-79.99
9
A
SER
266
179.21
-53.14
10
A
THR
237
65.38
146.60
10
A
ASP
238
-115.68
-86.37
10
A
SER
266
178.79
-48.09
11
A
THR
237
62.71
102.16
11
A
SER
239
-146.30
45.78
11
A
GLU
241
53.49
-91.64
11
A
SER
266
178.71
-51.01
12
A
SER
239
-110.51
-74.68
12
A
GLU
241
64.96
-115.47
13
A
THR
237
65.98
144.76
13
A
ASP
238
178.14
-53.99
13
A
SER
266
-166.14
-54.34
14
A
GLU
241
63.26
-78.75
15
A
SER
266
-164.36
-49.81
16
A
SER
239
84.82
-50.23
16
A
GLU
241
65.24
-126.73
17
A
THR
237
38.33
77.04
17
A
ASP
238
-170.35
-53.25
17
A
GLU
241
82.04
-60.58
17
A
SER
266
-156.24
-50.78
18
A
THR
237
-153.65
-157.99
18
A
ASP
238
-89.39
34.61
18
A
GLU
241
60.23
-88.19
18
A
SER
266
179.11
-53.12
19
A
THR
237
63.90
164.52
19
A
ASP
238
-85.20
45.94
19
A
SER
239
87.50
-45.74
19
A
SER
266
179.70
-51.79
20
A
THR
237
64.14
115.72
20
A
ASP
238
-77.41
-73.08
20
A
SER
239
-173.40
41.81
20
A
GLU
241
69.15
-126.33
20
A
SER
266
-163.88
-52.79
ACETYLCHOLINE RECEPTOR PROTEIN, ALPHA CHAIN
M2 TRANSMEMBRANE SEGMENT OF ALPHA-SUBUNIT OF NICOTINIC ACETYLCHOLINE RECEPTOR FROM TORPEDO CALIFORNICA, NMR, 20 STRUCTURES
1
N
N
A
GLU
241
A
GLU
6
HELX_P
A
LEU
263
A
LEU
28
1
1
23
covale
1.325
A
THR
267
A
C
THR
32
1_555
A
NH2
268
A
N
NH2
33
1_555
TRANSMEMBRANE PROTEIN
TRANSMEMBRANE PROTEIN, NICOTINIC ACETYLCHOLINE RECEPTOR, TRANSMEMBRANE SEGMENT, M2, ION-CHANNEL
ACHA_TORCA
UNP
1
P02710
260
291
1DXZ
236
267
P02710
A
1
1
32
1
P 1