1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
Gordon, L.M.
Lee, K.Y.C.
Lipp, M.M.
Zasadzinski, J.A.
Walther, F.J.
Sherman, M.A.
Waring, A.J.
http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic
1
90.
90.
90
1
1
1
C3 H7 N O2
89.093
y
ALANINE
L-peptide linking
C6 H15 N4 O2 1
175.209
y
ARGININE
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 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
C11 H12 N2 O2
204.225
y
TRYPTOPHAN
L-peptide linking
C9 H11 N O3
181.189
y
TYROSINE
L-peptide linking
N
1
N
N
N
2
S
C
N
3
N
C
N
4
N
O
N
5
N
C
N
6
N
O
N
7
N
H
N
8
N
H
N
9
N
H
N
10
N
H
N
11
N
H
N
12
N
H
N
13
N
H
N
14
N
N
N
15
S
C
N
16
N
C
N
17
N
O
N
18
N
C
N
19
N
C
N
20
N
C
N
21
N
N
N
22
N
C
N
23
N
N
N
24
N
N
N
25
N
O
N
26
N
H
N
27
N
H
N
28
N
H
N
29
N
H
N
30
N
H
N
31
N
H
N
32
N
H
N
33
N
H
N
34
N
H
N
35
N
H
N
36
N
H
N
37
N
H
N
38
N
H
N
39
N
H
N
40
N
H
N
41
N
N
N
42
R
C
N
43
N
C
N
44
N
O
N
45
N
C
N
46
N
S
N
47
N
O
N
48
N
H
N
49
N
H
N
50
N
H
N
51
N
H
N
52
N
H
N
53
N
H
N
54
N
H
N
55
N
N
N
56
S
C
N
57
N
C
N
58
N
O
N
59
N
C
N
60
N
C
N
61
N
C
N
62
N
O
N
63
N
N
N
64
N
O
N
65
N
H
N
66
N
H
N
67
N
H
N
68
N
H
N
69
N
H
N
70
N
H
N
71
N
H
N
72
N
H
N
73
N
H
N
74
N
H
N
75
N
N
N
76
N
C
N
77
N
C
N
78
N
O
N
79
N
O
N
80
N
H
N
81
N
H
N
82
N
H
N
83
N
H
N
84
N
H
N
85
N
N
N
86
S
C
N
87
N
C
N
88
N
O
N
89
S
C
N
90
N
C
N
91
N
C
N
92
N
C
N
93
N
O
N
94
N
H
N
95
N
H
N
96
N
H
N
97
N
H
N
98
N
H
N
99
N
H
N
100
N
H
N
101
N
H
N
102
N
H
N
103
N
H
N
104
N
H
N
105
N
H
N
106
N
H
N
107
N
N
N
108
S
C
N
109
N
C
N
110
N
O
N
111
N
C
N
112
N
C
N
113
N
C
N
114
N
C
N
115
N
O
N
116
N
H
N
117
N
H
N
118
N
H
N
119
N
H
N
120
N
H
N
121
N
H
N
122
N
H
N
123
N
H
N
124
N
H
N
125
N
H
N
126
N
H
N
127
N
H
N
128
N
H
N
129
N
N
N
130
S
C
N
131
N
C
N
132
N
O
N
133
N
C
N
134
N
C
N
135
N
C
N
136
N
C
N
137
N
N
N
138
N
O
N
139
N
H
N
140
N
H
N
141
N
H
N
142
N
H
N
143
N
H
N
144
N
H
N
145
N
H
N
146
N
H
N
147
N
H
N
148
N
H
N
149
N
H
N
150
N
H
N
151
N
H
N
152
N
H
N
153
N
H
N
154
N
N
N
155
S
C
N
156
N
C
N
157
N
O
N
158
N
C
N
159
N
C
N
160
N
S
N
161
N
C
N
162
N
O
N
163
N
H
N
164
N
H
N
165
N
H
N
166
N
H
N
167
N
H
N
168
N
H
N
169
N
H
N
170
N
H
N
171
N
H
N
172
N
H
N
173
N
H
N
174
N
N
N
175
S
C
N
176
N
C
N
177
N
O
N
178
N
C
Y
179
N
C
Y
180
N
C
Y
181
N
C
Y
182
N
C
Y
183
N
C
Y
184
N
C
N
185
N
O
N
186
N
H
N
187
N
H
N
188
N
H
N
189
N
H
N
190
N
H
N
191
N
H
N
192
N
H
N
193
N
H
N
194
N
H
N
195
N
H
N
196
N
H
N
197
N
N
N
198
S
C
N
199
N
C
N
200
N
O
N
201
N
C
N
202
N
C
N
203
N
C
N
204
N
O
N
205
N
H
N
206
N
H
N
207
N
H
N
208
N
H
N
209
N
H
N
210
N
H
N
211
N
H
N
212
N
H
N
213
N
H
N
214
N
N
N
215
S
C
N
216
N
C
N
217
N
O
N
218
N
C
Y
219
N
C
Y
220
N
C
Y
221
N
C
Y
222
N
N
Y
223
N
C
Y
224
N
C
Y
225
N
C
Y
226
N
C
Y
227
N
C
N
228
N
O
N
229
N
H
N
230
N
H
N
231
N
H
N
232
N
H
N
233
N
H
N
234
N
H
N
235
N
H
N
236
N
H
N
237
N
H
N
238
N
H
N
239
N
H
N
240
N
H
N
241
N
N
N
242
S
C
N
243
N
C
N
244
N
O
N
245
N
C
Y
246
N
C
Y
247
N
C
Y
248
N
C
Y
249
N
C
Y
250
N
C
Y
251
N
C
N
252
N
O
N
253
N
O
N
254
N
H
N
255
N
H
N
256
N
H
N
257
N
H
N
258
N
H
N
259
N
H
N
260
N
H
N
261
N
H
N
262
N
H
N
263
N
H
N
264
N
H
N
1
N
sing
N
2
N
sing
N
3
N
sing
N
4
N
sing
N
5
N
sing
N
6
N
sing
N
7
N
doub
N
8
N
sing
N
9
N
sing
N
10
N
sing
N
11
N
sing
N
12
N
sing
N
13
N
sing
N
14
N
sing
N
15
N
sing
N
16
N
sing
N
17
N
sing
N
18
N
sing
N
19
N
doub
N
20
N
sing
N
21
N
sing
N
22
N
sing
N
23
N
sing
N
24
N
sing
N
25
N
sing
N
26
N
sing
N
27
N
sing
N
28
N
sing
N
29
N
sing
N
30
N
sing
N
31
N
sing
N
32
N
sing
N
33
N
doub
N
34
N
sing
N
35
N
sing
N
36
N
sing
N
37
N
sing
N
38
N
sing
N
39
N
sing
N
40
N
sing
N
41
N
sing
N
42
N
sing
N
43
N
sing
N
44
N
sing
N
45
N
doub
N
46
N
sing
N
47
N
sing
N
48
N
sing
N
49
N
sing
N
50
N
sing
N
51
N
sing
N
52
N
sing
N
53
N
sing
N
54
N
sing
N
55
N
sing
N
56
N
sing
N
57
N
sing
N
58
N
doub
N
59
N
sing
N
60
N
sing
N
61
N
sing
N
62
N
sing
N
63
N
sing
N
64
N
sing
N
65
N
sing
N
66
N
doub
N
67
N
sing
N
68
N
sing
N
69
N
sing
N
70
N
sing
N
71
N
sing
N
72
N
sing
N
73
N
sing
N
74
N
sing
N
75
N
sing
N
76
N
sing
N
77
N
doub
N
78
N
sing
N
79
N
sing
N
80
N
sing
N
81
N
sing
N
82
N
sing
N
83
N
sing
N
84
N
sing
N
85
N
sing
N
86
N
doub
N
87
N
sing
N
88
N
sing
N
89
N
sing
N
90
N
sing
N
91
N
sing
N
92
N
sing
N
93
N
sing
N
94
N
sing
N
95
N
sing
N
96
N
sing
N
97
N
sing
N
98
N
sing
N
99
N
sing
N
100
N
sing
N
101
N
sing
N
102
N
sing
N
103
N
sing
N
104
N
sing
N
105
N
sing
N
106
N
sing
N
107
N
doub
N
108
N
sing
N
109
N
sing
N
110
N
sing
N
111
N
sing
N
112
N
sing
N
113
N
sing
N
114
N
sing
N
115
N
sing
N
116
N
sing
N
117
N
sing
N
118
N
sing
N
119
N
sing
N
120
N
sing
N
121
N
sing
N
122
N
sing
N
123
N
sing
N
124
N
sing
N
125
N
sing
N
126
N
sing
N
127
N
sing
N
128
N
doub
N
129
N
sing
N
130
N
sing
N
131
N
sing
N
132
N
sing
N
133
N
sing
N
134
N
sing
N
135
N
sing
N
136
N
sing
N
137
N
sing
N
138
N
sing
N
139
N
sing
N
140
N
sing
N
141
N
sing
N
142
N
sing
N
143
N
sing
N
144
N
sing
N
145
N
sing
N
146
N
sing
N
147
N
sing
N
148
N
sing
N
149
N
sing
N
150
N
sing
N
151
N
sing
N
152
N
doub
N
153
N
sing
N
154
N
sing
N
155
N
sing
N
156
N
sing
N
157
N
sing
N
158
N
sing
N
159
N
sing
N
160
N
sing
N
161
N
sing
N
162
N
sing
N
163
N
sing
N
164
N
sing
N
165
N
sing
N
166
N
sing
N
167
N
sing
N
168
N
sing
N
169
N
sing
N
170
N
sing
N
171
N
doub
N
172
N
sing
N
173
N
sing
N
174
N
sing
N
175
N
sing
Y
176
N
doub
Y
177
N
sing
Y
178
N
sing
N
179
N
sing
Y
180
N
doub
N
181
N
sing
Y
182
N
doub
N
183
N
sing
Y
184
N
sing
N
185
N
sing
N
186
N
sing
N
187
N
sing
N
188
N
sing
N
189
N
sing
N
190
N
sing
N
191
N
sing
N
192
N
sing
N
193
N
sing
N
194
N
doub
N
195
N
sing
N
196
N
sing
N
197
N
sing
N
198
N
sing
N
199
N
sing
N
200
N
sing
N
201
N
sing
N
202
N
sing
N
203
N
sing
N
204
N
sing
N
205
N
sing
N
206
N
sing
N
207
N
sing
N
208
N
sing
N
209
N
sing
N
210
N
sing
N
211
N
doub
N
212
N
sing
N
213
N
sing
N
214
N
sing
N
215
N
sing
Y
216
N
doub
Y
217
N
sing
Y
218
N
sing
N
219
N
sing
Y
220
N
doub
Y
221
N
sing
Y
222
N
sing
N
223
N
sing
Y
224
N
sing
Y
225
N
doub
N
226
N
sing
Y
227
N
doub
N
228
N
sing
Y
229
N
sing
N
230
N
sing
N
231
N
sing
N
232
N
sing
N
233
N
sing
N
234
N
sing
N
235
N
sing
N
236
N
sing
N
237
N
sing
N
238
N
sing
N
239
N
doub
N
240
N
sing
N
241
N
sing
N
242
N
sing
N
243
N
sing
Y
244
N
doub
Y
245
N
sing
Y
246
N
sing
N
247
N
sing
Y
248
N
doub
N
249
N
sing
Y
250
N
doub
N
251
N
sing
Y
252
N
sing
N
253
N
sing
N
254
N
sing
N
255
N
sing
N
256
N
sing
DK
J.Pept.Res.
JPERFA
2150
1397-002X
55
330
347
10.1034/j.1399-3011.2000.00693.x
10798379
Conformational mapping of the N-terminal segment of surfactant protein B in lipid using 13C-enhanced Fourier transform infrared spectroscopy.
2000
10.2210/pdb1dfw/pdb
pdb_00001dfw
1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
2932.701
LUNG SURFACTANT PROTEIN B
RESIDUES 1-25
1
syn
polymer
no
no
FPIPLPYCWLCRALIKRIQAMIPKG
FPIPLPYCWLCRALIKRIQAMIPKG
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
THIS STRUCTURE WAS DETERMINED USING 13-C ISOTOPE ENHANCED FTIR SPECTROSCOPY ON A FAMILY OF SELECTIVELY LABELED CHEMICALLY SYNTHESIZED PEPTIDES. 13-C CARBONYL LABELS INCLUDED RESIDUES 1,3,5,8,10,11,13,14,15,16,18,25. SOLVENT SYSTEM: LIPOSOMES OF 1-PALMITOYL-2-OLEOYL PHOSPHATIDYLGLYCEROL (POPG). SAMPLE CONDITIONS: 298 K, 1 ATM, PH 7.4, IONIC STRENGTH 10 MM PHOSPHATE. TOTAL NUMBER OF CONFORMERS CALCULATED: 15; TOTAL NUMBER OF CONFORMERS SUBMITTED: 10; REPRESENTATIVE CONFORMER 8 (CLOSEST TO THE AVERAGE). SPECTROMETER: MATTSON FTIR RESEARCH SERIES. REFINEMENT METHOD: MOLECULAR DYNAMICS, SIMULATED ANNEALING. SOFTWARE: WINFIRST (FTIR CURVE FITTING SOFTWARE), DISCOVER 2.9.7, MOLECULAR SIMULATIONS, INC. (SAN DIEGO, CA).
chem_comp_atom
chem_comp_bond
database_2
pdbx_nmr_software
repository
Initial release
Version format compliance
Version format compliance
Data collection
Database references
1
0
1999-12-10
1
1
2008-04-27
1
2
2011-07-13
1
3
2024-02-07
_database_2.pdbx_DOI
_database_2.pdbx_database_accession
_pdbx_nmr_software.name
RCSB
Y
RCSB
1999-11-22
REL
THIS PEPTIDE WAS CHEMICALLY SYNTHESIZED. THE SEQUENCE OCCURS NATURALLY IN HUMANS (HOMO SAPIENS)
sample
13-C isotope enhanced FTIR study. The coordinates in this entry were generated from 13-C induced spectral shifts which give residue-specific secondary structure information.
structures with acceptable covalent geometry
15
10
13-C isotope enhanced FTIR
10 mM phosphate
7.4
1
atm
298
Molecular dynamics (simulated annealing) was used to generate an ensemble of conformers consistent with the FTIR data.
molecular dynamics, simulated annealing
8
closest to the average
This structure was determined using 13-C isotope enhanced FTIR spectroscopy on a family of selectively labeled chemically synthesized peptides. 13-C carbonyl labels included residues 1,3,5,8,10,11,13,14,15,16,18,25.
Liposomes of 1-palmitoyl-2-oleoyl phosphatidylglycerol (POPG)
Kauppine et al.
data analysis
Winfirst
(FTIR curve fitting software)
Molecular Simulations, Inc. (San Diego, CA)
refinement
Discover
2.9.7
Mattson FTIR
Research Series
PHE
1
n
1
PHE
1
A
PRO
2
n
2
PRO
2
A
ILE
3
n
3
ILE
3
A
PRO
4
n
4
PRO
4
A
LEU
5
n
5
LEU
5
A
PRO
6
n
6
PRO
6
A
TYR
7
n
7
TYR
7
A
CYS
8
n
8
CYS
8
A
TRP
9
n
9
TRP
9
A
LEU
10
n
10
LEU
10
A
CYS
11
n
11
CYS
11
A
ARG
12
n
12
ARG
12
A
ALA
13
n
13
ALA
13
A
LEU
14
n
14
LEU
14
A
ILE
15
n
15
ILE
15
A
LYS
16
n
16
LYS
16
A
ARG
17
n
17
ARG
17
A
ILE
18
n
18
ILE
18
A
GLN
19
n
19
GLN
19
A
ALA
20
n
20
ALA
20
A
MET
21
n
21
MET
21
A
ILE
22
n
22
ILE
22
A
PRO
23
n
23
PRO
23
A
LYS
24
n
24
LYS
24
A
GLY
25
n
25
GLY
25
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
4.18
0.50
120.30
124.48
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
12
12
12
N
1
4.29
0.50
120.30
124.59
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
17
17
17
N
2
4.34
0.50
120.30
124.64
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
12
12
12
N
2
-3.08
0.50
120.30
117.22
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
12
12
12
N
2
4.36
0.50
120.30
124.66
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
17
17
17
N
3
4.35
0.50
120.30
124.65
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
12
12
12
N
3
-3.07
0.50
120.30
117.23
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
12
12
12
N
3
4.09
0.50
120.30
124.39
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
17
17
17
N
4
4.41
0.50
120.30
124.71
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
12
12
12
N
4
-3.18
0.50
120.30
117.12
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
12
12
12
N
4
4.38
0.50
120.30
124.68
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
17
17
17
N
4
-3.07
0.50
120.30
117.23
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
17
17
17
N
5
4.28
0.50
120.30
124.58
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
12
12
12
N
5
4.09
0.50
120.30
124.39
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
17
17
17
N
6
4.13
0.50
120.30
124.43
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
12
12
12
N
6
-3.00
0.50
120.30
117.30
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
12
12
12
N
6
4.11
0.50
120.30
124.41
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
17
17
17
N
6
-3.00
0.50
120.30
117.30
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
17
17
17
N
7
-4.47
0.60
121.00
116.53
A
A
A
CB
CG
CD2
TYR
TYR
TYR
7
7
7
N
7
3.62
0.60
121.00
124.62
A
A
A
CB
CG
CD1
TYR
TYR
TYR
7
7
7
N
7
4.14
0.50
120.30
124.44
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
12
12
12
N
7
-3.03
0.50
120.30
117.27
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
12
12
12
N
7
4.11
0.50
120.30
124.41
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
17
17
17
N
8
-4.40
0.60
121.00
116.60
A
A
A
CB
CG
CD2
TYR
TYR
TYR
7
7
7
N
8
4.14
0.50
120.30
124.44
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
12
12
12
N
8
-3.02
0.50
120.30
117.28
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
12
12
12
N
8
4.16
0.50
120.30
124.46
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
17
17
17
N
9
4.25
0.50
120.30
124.55
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
12
12
12
N
9
-3.02
0.50
120.30
117.28
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
12
12
12
N
9
4.14
0.50
120.30
124.44
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
17
17
17
N
10
4.11
0.50
120.30
124.41
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
12
12
12
N
10
-3.13
0.50
120.30
117.17
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
12
12
12
N
10
4.12
0.50
120.30
124.42
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
17
17
17
N
1
A
PRO
2
-69.51
84.07
2
A
PRO
4
-64.06
97.40
3
A
PRO
6
-63.60
93.05
CONFORMATIONAL MAPPING OF THE N-TERMINAL SEGMENT OF SURFACTANT PROTEIN B IN LIPID USING 13C-ENHANCED FOURIER TRANSFORM INFRARED SPECTROSCOPY (FTIR)
1
N
N
A
TYR
7
A
TYR
7
HELX_P
A
ILE
22
A
ILE
22
1
1
16
IMMUNE SYSTEM
LUNG SURFACTANT PROTEIN, SAPOSIN, IMMUNE SYSTEM
PSPB_HUMAN
UNP
1
P07988
106
130
1DFW
1
25
P07988
A
1
1
25
1
P 1