1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
Sia, S.K.
Li, M.X.
Spyracopoulos, L.
Gagne, S.M.
Liu, W.
Putkey, J.A.
Sykes, B.D.
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
C4 H7 N O4
133.103
y
ASPARTIC ACID
L-peptide linking
Ca 2
40.078
CALCIUM ION
non-polymer
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
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
C5 H11 N O2
117.146
y
VALINE
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
S
C
N
43
N
C
N
44
N
O
N
45
N
C
N
46
N
C
N
47
N
O
N
48
N
N
N
49
N
O
N
50
N
H
N
51
N
H
N
52
N
H
N
53
N
H
N
54
N
H
N
55
N
H
N
56
N
H
N
57
N
H
N
58
N
N
N
59
S
C
N
60
N
C
N
61
N
O
N
62
N
C
N
63
N
C
N
64
N
O
N
65
N
O
N
66
N
O
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
CA
N
75
N
N
N
76
R
C
N
77
N
C
N
78
N
O
N
79
N
C
N
80
N
S
N
81
N
O
N
82
N
H
N
83
N
H
N
84
N
H
N
85
N
H
N
86
N
H
N
87
N
H
N
88
N
H
N
89
N
N
N
90
S
C
N
91
N
C
N
92
N
O
N
93
N
C
N
94
N
C
N
95
N
C
N
96
N
O
N
97
N
N
N
98
N
O
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
H
N
108
N
H
N
109
N
N
N
110
S
C
N
111
N
C
N
112
N
O
N
113
N
C
N
114
N
C
N
115
N
C
N
116
N
O
N
117
N
O
N
118
N
O
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
N
N
129
N
C
N
130
N
C
N
131
N
O
N
132
N
O
N
133
N
H
N
134
N
H
N
135
N
H
N
136
N
H
N
137
N
H
N
138
N
N
N
139
S
C
N
140
N
C
N
141
N
O
N
142
S
C
N
143
N
C
N
144
N
C
N
145
N
C
N
146
N
O
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
H
N
155
N
H
N
156
N
H
N
157
N
H
N
158
N
H
N
159
N
H
N
160
N
N
N
161
S
C
N
162
N
C
N
163
N
O
N
164
N
C
N
165
N
C
N
166
N
C
N
167
N
C
N
168
N
O
N
169
N
H
N
170
N
H
N
171
N
H
N
172
N
H
N
173
N
H
N
174
N
H
N
175
N
H
N
176
N
H
N
177
N
H
N
178
N
H
N
179
N
H
N
180
N
H
N
181
N
H
N
182
N
N
N
183
S
C
N
184
N
C
N
185
N
O
N
186
N
C
N
187
N
C
N
188
N
C
N
189
N
C
N
190
N
N
N
191
N
O
N
192
N
H
N
193
N
H
N
194
N
H
N
195
N
H
N
196
N
H
N
197
N
H
N
198
N
H
N
199
N
H
N
200
N
H
N
201
N
H
N
202
N
H
N
203
N
H
N
204
N
H
N
205
N
H
N
206
N
H
N
207
N
N
N
208
S
C
N
209
N
C
N
210
N
O
N
211
N
C
N
212
N
C
N
213
N
S
N
214
N
C
N
215
N
O
N
216
N
H
N
217
N
H
N
218
N
H
N
219
N
H
N
220
N
H
N
221
N
H
N
222
N
H
N
223
N
H
N
224
N
H
N
225
N
H
N
226
N
H
N
227
N
N
N
228
S
C
N
229
N
C
N
230
N
O
N
231
N
C
Y
232
N
C
Y
233
N
C
Y
234
N
C
Y
235
N
C
Y
236
N
C
Y
237
N
C
N
238
N
O
N
239
N
H
N
240
N
H
N
241
N
H
N
242
N
H
N
243
N
H
N
244
N
H
N
245
N
H
N
246
N
H
N
247
N
H
N
248
N
H
N
249
N
H
N
250
N
N
N
251
S
C
N
252
N
C
N
253
N
O
N
254
N
C
N
255
N
C
N
256
N
C
N
257
N
O
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
265
N
H
N
266
N
H
N
267
N
N
N
268
S
C
N
269
N
C
N
270
N
O
N
271
N
C
N
272
N
O
N
273
N
O
N
274
N
H
N
275
N
H
N
276
N
H
N
277
N
H
N
278
N
H
N
279
N
H
N
280
N
H
N
281
N
N
N
282
S
C
N
283
N
C
N
284
N
O
N
285
R
C
N
286
N
O
N
287
N
C
N
288
N
O
N
289
N
H
N
290
N
H
N
291
N
H
N
292
N
H
N
293
N
H
N
294
N
H
N
295
N
H
N
296
N
H
N
297
N
H
N
298
N
N
N
299
S
C
N
300
N
C
N
301
N
O
N
302
N
C
Y
303
N
C
Y
304
N
C
Y
305
N
C
Y
306
N
C
Y
307
N
C
Y
308
N
C
N
309
N
O
N
310
N
O
N
311
N
H
N
312
N
H
N
313
N
H
N
314
N
H
N
315
N
H
N
316
N
H
N
317
N
H
N
318
N
H
N
319
N
H
N
320
N
H
N
321
N
H
N
322
N
N
N
323
S
C
N
324
N
C
N
325
N
O
N
326
N
C
N
327
N
C
N
328
N
C
N
329
N
O
N
330
N
H
N
331
N
H
N
332
N
H
N
333
N
H
N
334
N
H
N
335
N
H
N
336
N
H
N
337
N
H
N
338
N
H
N
339
N
H
N
340
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
doub
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
sing
N
59
N
sing
N
60
N
sing
N
61
N
doub
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
doub
N
77
N
sing
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
sing
N
87
N
sing
N
88
N
sing
N
89
N
doub
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
doub
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
sing
N
108
N
doub
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
doub
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
doub
N
127
N
sing
N
128
N
sing
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
doub
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
sing
N
153
N
sing
N
154
N
sing
N
155
N
sing
N
156
N
doub
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
sing
N
172
N
sing
N
173
N
sing
N
174
N
sing
N
175
N
sing
N
176
N
sing
N
177
N
doub
N
178
N
sing
N
179
N
sing
N
180
N
sing
N
181
N
sing
N
182
N
sing
N
183
N
sing
N
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
sing
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
doub
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
sing
N
212
N
sing
N
213
N
sing
N
214
N
sing
N
215
N
sing
N
216
N
sing
N
217
N
sing
N
218
N
sing
N
219
N
sing
N
220
N
doub
N
221
N
sing
N
222
N
sing
N
223
N
sing
N
224
N
sing
Y
225
N
doub
Y
226
N
sing
Y
227
N
sing
N
228
N
sing
Y
229
N
doub
N
230
N
sing
Y
231
N
doub
N
232
N
sing
Y
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
sing
N
240
N
sing
N
241
N
sing
N
242
N
sing
N
243
N
doub
N
244
N
sing
N
245
N
sing
N
246
N
sing
N
247
N
sing
N
248
N
sing
N
249
N
sing
N
250
N
sing
N
251
N
sing
N
252
N
sing
N
253
N
sing
N
254
N
sing
N
255
N
sing
N
256
N
sing
N
257
N
sing
N
258
N
sing
N
259
N
sing
N
260
N
doub
N
261
N
sing
N
262
N
sing
N
263
N
sing
N
264
N
sing
N
265
N
sing
N
266
N
sing
N
267
N
sing
N
268
N
sing
N
269
N
sing
N
270
N
sing
N
271
N
sing
N
272
N
sing
N
273
N
doub
N
274
N
sing
N
275
N
sing
N
276
N
sing
N
277
N
sing
N
278
N
sing
N
279
N
sing
N
280
N
sing
N
281
N
sing
N
282
N
sing
N
283
N
sing
N
284
N
sing
N
285
N
sing
N
286
N
sing
N
287
N
sing
N
288
N
sing
N
289
N
doub
N
290
N
sing
N
291
N
sing
N
292
N
sing
N
293
N
sing
Y
294
N
doub
Y
295
N
sing
Y
296
N
sing
N
297
N
sing
Y
298
N
doub
N
299
N
sing
Y
300
N
doub
N
301
N
sing
Y
302
N
sing
N
303
N
sing
N
304
N
sing
N
305
N
sing
N
306
N
sing
N
307
N
sing
N
308
N
sing
N
309
N
sing
N
310
N
sing
N
311
N
sing
N
312
N
sing
N
313
N
doub
N
314
N
sing
N
315
N
sing
N
316
N
sing
N
317
N
sing
N
318
N
sing
N
319
N
sing
N
320
N
sing
N
321
N
sing
N
322
N
sing
N
323
N
sing
N
324
N
sing
US
J.Biol.Chem.
JBCHA3
0071
0021-9258
272
18216
18221
10.1074/jbc.272.29.18216
9218458
Structure of cardiac muscle troponin C unexpectedly reveals a closed regulatory domain.
1997
10.2210/pdb1aj4/pdb
pdb_00001aj4
1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
CARDIAC TROPONIN C, CALCIUM IONS BOUND AT SITES II, III AND IV
18311.275
TROPONIN C
C35S, C84S
1
man
polymer
40.078
CALCIUM ION
3
syn
non-polymer
CTNC
no
no
AADIYKAAVEQLTEEQKNEFKAAFDIFVLGAEDGSISTKELGKVMRMLGQNPTPEELQEMIDEVDEDGSGTVDFDEFLVM
MVRSMKDDSKGKTEEELSDLFRMFDKNADGYIDLEELKIMLQATGETITEDDIEELMKDGDKNNDGRIDYDEFLEFMKGV
E
AADIYKAAVEQLTEEQKNEFKAAFDIFVLGAEDGSISTKELGKVMRMLGQNPTPEELQEMIDEVDEDGSGTVDFDEFLVM
MVRSMKDDSKGKTEEELSDLFRMFDKNADGYIDLEELKIMLQATGETITEDDIEELMKDGDKNNDGRIDYDEFLEFMKGV
E
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
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
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
chicken
Gallus
MUSCLE
Escherichia
sample
BL21
THIN FILAMENT
CTNC(A-CYS)
9031
HEART
Gallus gallus
CTNC(A-CYS)
562
Escherichia coli
BL21 (DE3) PLYSS
PET-23D
database_2
pdbx_database_status
pdbx_struct_assembly
pdbx_struct_conn_angle
pdbx_struct_oper_list
struct_conn
struct_ref_seq_dif
struct_site
chem_comp_atom
chem_comp_bond
repository
Initial release
Version format compliance
Version format compliance
Database references
Derived calculations
Other
Data collection
1
0
1998-05-20
1
1
2008-03-24
1
2
2011-07-13
1
3
2021-11-03
1
4
2024-05-22
_database_2.pdbx_DOI
_database_2.pdbx_database_accession
_pdbx_database_status.process_site
_pdbx_struct_conn_angle.ptnr1_auth_comp_id
_pdbx_struct_conn_angle.ptnr1_auth_seq_id
_pdbx_struct_conn_angle.ptnr1_label_atom_id
_pdbx_struct_conn_angle.ptnr1_label_comp_id
_pdbx_struct_conn_angle.ptnr1_label_seq_id
_pdbx_struct_conn_angle.ptnr3_auth_comp_id
_pdbx_struct_conn_angle.ptnr3_auth_seq_id
_pdbx_struct_conn_angle.ptnr3_label_atom_id
_pdbx_struct_conn_angle.ptnr3_label_comp_id
_pdbx_struct_conn_angle.ptnr3_label_seq_id
_pdbx_struct_conn_angle.value
_struct_conn.pdbx_dist_value
_struct_conn.ptnr1_auth_comp_id
_struct_conn.ptnr1_auth_seq_id
_struct_conn.ptnr1_label_asym_id
_struct_conn.ptnr1_label_atom_id
_struct_conn.ptnr1_label_comp_id
_struct_conn.ptnr1_label_seq_id
_struct_conn.ptnr2_auth_comp_id
_struct_conn.ptnr2_auth_seq_id
_struct_conn.ptnr2_label_asym_id
_struct_conn.ptnr2_label_atom_id
_struct_conn.ptnr2_label_comp_id
_struct_conn.ptnr2_label_seq_id
_struct_ref_seq_dif.details
_struct_site.pdbx_auth_asym_id
_struct_site.pdbx_auth_comp_id
_struct_site.pdbx_auth_seq_id
Y
BNL
1997-05-14
REL
REL
CA
CALCIUM ION
SMALLEST RMSD TO THE AVERAGE STRUCTURE
35
1
NOESY
TOCSY
6.7
303
K
CALCULATIONS OF THE N- AND C-DOMAINS WERE PERFORMED SEPARATELY BECAUSE THE CENTRAL LINKER IS UNSTRUCTURED AND FLEXIBLE IN SOLUTION. THE ORIENTATION OF THE TWO DOMAINS WITH RESPECT TO EACH OTHER AND THE STRUCTURE OF THE CENTRAL LINKER (RESIDUES 86 - 94) ARE THEREFORE UNDEFINED. THE N-DOMAIN (2 - 85) AND C-DOMAIN (95 - 161) IN THIS STRUCTURE ARE THE STRUCTURES IN THE ENSEMBLES CLOSEST TO THE UNMINIMIZED AVERAGE STRUCTURES. IN PARTICULAR, THE N-DOMAIN HERE CORRESPONDS TO MODEL 25 IN 2CTN, AND THE C-DOMAIN TO MODEL 3 IN 3CTN. THE CENTRAL LINKER HERE IS THE RESULT OF ENERGY MINIMIZATION WITHOUT EXPERIMENTAL RESTRAINTS, AND IS ADDED ONLY AS A TOOL OF CONVENIENCE.
simulated annealing
BRUNGER
refinement
X-PLOR
3.1
structure solution
X-PLOR
500
Varian
UNITYPLUS
600
Varian
UNITYPLUS
CA
1
2
CA
CA
162
A
CA
2
2
CA
CA
163
A
CA
3
2
CA
CA
164
A
n
1
1
A
ALA
2
n
2
ALA
2
A
ASP
3
n
3
ASP
3
A
ILE
4
n
4
ILE
4
A
TYR
5
n
5
TYR
5
A
LYS
6
n
6
LYS
6
A
ALA
7
n
7
ALA
7
A
ALA
8
n
8
ALA
8
A
VAL
9
n
9
VAL
9
A
GLU
10
n
10
GLU
10
A
GLN
11
n
11
GLN
11
A
LEU
12
n
12
LEU
12
A
THR
13
n
13
THR
13
A
GLU
14
n
14
GLU
14
A
GLU
15
n
15
GLU
15
A
GLN
16
n
16
GLN
16
A
LYS
17
n
17
LYS
17
A
ASN
18
n
18
ASN
18
A
GLU
19
n
19
GLU
19
A
PHE
20
n
20
PHE
20
A
LYS
21
n
21
LYS
21
A
ALA
22
n
22
ALA
22
A
ALA
23
n
23
ALA
23
A
PHE
24
n
24
PHE
24
A
ASP
25
n
25
ASP
25
A
ILE
26
n
26
ILE
26
A
PHE
27
n
27
PHE
27
A
VAL
28
n
28
VAL
28
A
LEU
29
n
29
LEU
29
A
GLY
30
n
30
GLY
30
A
ALA
31
n
31
ALA
31
A
GLU
32
n
32
GLU
32
A
ASP
33
n
33
ASP
33
A
GLY
34
n
34
GLY
34
A
SER
35
n
35
SER
35
A
ILE
36
n
36
ILE
36
A
SER
37
n
37
SER
37
A
THR
38
n
38
THR
38
A
LYS
39
n
39
LYS
39
A
GLU
40
n
40
GLU
40
A
LEU
41
n
41
LEU
41
A
GLY
42
n
42
GLY
42
A
LYS
43
n
43
LYS
43
A
VAL
44
n
44
VAL
44
A
MET
45
n
45
MET
45
A
ARG
46
n
46
ARG
46
A
MET
47
n
47
MET
47
A
LEU
48
n
48
LEU
48
A
GLY
49
n
49
GLY
49
A
GLN
50
n
50
GLN
50
A
ASN
51
n
51
ASN
51
A
PRO
52
n
52
PRO
52
A
THR
53
n
53
THR
53
A
PRO
54
n
54
PRO
54
A
GLU
55
n
55
GLU
55
A
GLU
56
n
56
GLU
56
A
LEU
57
n
57
LEU
57
A
GLN
58
n
58
GLN
58
A
GLU
59
n
59
GLU
59
A
MET
60
n
60
MET
60
A
ILE
61
n
61
ILE
61
A
ASP
62
n
62
ASP
62
A
GLU
63
n
63
GLU
63
A
VAL
64
n
64
VAL
64
A
ASP
65
n
65
ASP
65
A
GLU
66
n
66
GLU
66
A
ASP
67
n
67
ASP
67
A
GLY
68
n
68
GLY
68
A
SER
69
n
69
SER
69
A
GLY
70
n
70
GLY
70
A
THR
71
n
71
THR
71
A
VAL
72
n
72
VAL
72
A
ASP
73
n
73
ASP
73
A
PHE
74
n
74
PHE
74
A
ASP
75
n
75
ASP
75
A
GLU
76
n
76
GLU
76
A
PHE
77
n
77
PHE
77
A
LEU
78
n
78
LEU
78
A
VAL
79
n
79
VAL
79
A
MET
80
n
80
MET
80
A
MET
81
n
81
MET
81
A
VAL
82
n
82
VAL
82
A
ARG
83
n
83
ARG
83
A
SER
84
n
84
SER
84
A
MET
85
n
85
MET
85
A
LYS
86
n
86
LYS
86
A
ASP
87
n
87
ASP
87
A
ASP
88
n
88
ASP
88
A
SER
89
n
89
SER
89
A
LYS
90
n
90
LYS
90
A
GLY
91
n
91
GLY
91
A
LYS
92
n
92
LYS
92
A
THR
93
n
93
THR
93
A
GLU
94
n
94
GLU
94
A
GLU
95
n
95
GLU
95
A
GLU
96
n
96
GLU
96
A
LEU
97
n
97
LEU
97
A
SER
98
n
98
SER
98
A
ASP
99
n
99
ASP
99
A
LEU
100
n
100
LEU
100
A
PHE
101
n
101
PHE
101
A
ARG
102
n
102
ARG
102
A
MET
103
n
103
MET
103
A
PHE
104
n
104
PHE
104
A
ASP
105
n
105
ASP
105
A
LYS
106
n
106
LYS
106
A
ASN
107
n
107
ASN
107
A
ALA
108
n
108
ALA
108
A
ASP
109
n
109
ASP
109
A
GLY
110
n
110
GLY
110
A
TYR
111
n
111
TYR
111
A
ILE
112
n
112
ILE
112
A
ASP
113
n
113
ASP
113
A
LEU
114
n
114
LEU
114
A
GLU
115
n
115
GLU
115
A
GLU
116
n
116
GLU
116
A
LEU
117
n
117
LEU
117
A
LYS
118
n
118
LYS
118
A
ILE
119
n
119
ILE
119
A
MET
120
n
120
MET
120
A
LEU
121
n
121
LEU
121
A
GLN
122
n
122
GLN
122
A
ALA
123
n
123
ALA
123
A
THR
124
n
124
THR
124
A
GLY
125
n
125
GLY
125
A
GLU
126
n
126
GLU
126
A
THR
127
n
127
THR
127
A
ILE
128
n
128
ILE
128
A
THR
129
n
129
THR
129
A
GLU
130
n
130
GLU
130
A
ASP
131
n
131
ASP
131
A
ASP
132
n
132
ASP
132
A
ILE
133
n
133
ILE
133
A
GLU
134
n
134
GLU
134
A
GLU
135
n
135
GLU
135
A
LEU
136
n
136
LEU
136
A
MET
137
n
137
MET
137
A
LYS
138
n
138
LYS
138
A
ASP
139
n
139
ASP
139
A
GLY
140
n
140
GLY
140
A
ASP
141
n
141
ASP
141
A
LYS
142
n
142
LYS
142
A
ASN
143
n
143
ASN
143
A
ASN
144
n
144
ASN
144
A
ASP
145
n
145
ASP
145
A
GLY
146
n
146
GLY
146
A
ARG
147
n
147
ARG
147
A
ILE
148
n
148
ILE
148
A
ASP
149
n
149
ASP
149
A
TYR
150
n
150
TYR
150
A
ASP
151
n
151
ASP
151
A
GLU
152
n
152
GLU
152
A
PHE
153
n
153
PHE
153
A
LEU
154
n
154
LEU
154
A
GLU
155
n
155
GLU
155
A
PHE
156
n
156
PHE
156
A
MET
157
n
157
MET
157
A
LYS
158
n
158
LYS
158
A
GLY
159
n
159
GLY
159
A
VAL
160
n
160
VAL
160
A
GLU
161
n
161
GLU
161
A
author_defined_assembly
1
monomeric
A
ASP
65
A
CG
ASP
65
1_555
A
CA
162
B
CA
CA
1_555
A
ASP
65
A
OD1
ASP
65
1_555
30.8
A
ASP
65
A
CG
ASP
65
1_555
A
CA
162
B
CA
CA
1_555
A
ASP
65
A
OD2
ASP
65
1_555
30.6
A
ASP
65
A
OD1
ASP
65
1_555
A
CA
162
B
CA
CA
1_555
A
ASP
65
A
OD2
ASP
65
1_555
60.6
A
ASP
65
A
CG
ASP
65
1_555
A
CA
162
B
CA
CA
1_555
A
ASP
67
A
OD1
ASP
67
1_555
61.0
A
ASP
65
A
OD1
ASP
65
1_555
A
CA
162
B
CA
CA
1_555
A
ASP
67
A
OD1
ASP
67
1_555
55.6
A
ASP
65
A
OD2
ASP
65
1_555
A
CA
162
B
CA
CA
1_555
A
ASP
67
A
OD1
ASP
67
1_555
66.6
A
ASP
65
A
CG
ASP
65
1_555
A
CA
162
B
CA
CA
1_555
A
SER
69
A
OG
SER
69
1_555
86.9
A
ASP
65
A
OD1
ASP
65
1_555
A
CA
162
B
CA
CA
1_555
A
SER
69
A
OG
SER
69
1_555
108.8
A
ASP
65
A
OD2
ASP
65
1_555
A
CA
162
B
CA
CA
1_555
A
SER
69
A
OG
SER
69
1_555
60.0
A
ASP
67
A
OD1
ASP
67
1_555
A
CA
162
B
CA
CA
1_555
A
SER
69
A
OG
SER
69
1_555
67.3
A
ASP
65
A
CG
ASP
65
1_555
A
CA
162
B
CA
CA
1_555
A
THR
71
A
O
THR
71
1_555
104.0
A
ASP
65
A
OD1
ASP
65
1_555
A
CA
162
B
CA
CA
1_555
A
THR
71
A
O
THR
71
1_555
114.1
A
ASP
65
A
OD2
ASP
65
1_555
A
CA
162
B
CA
CA
1_555
A
THR
71
A
O
THR
71
1_555
98.4
A
ASP
67
A
OD1
ASP
67
1_555
A
CA
162
B
CA
CA
1_555
A
THR
71
A
O
THR
71
1_555
164.4
A
SER
69
A
OG
SER
69
1_555
A
CA
162
B
CA
CA
1_555
A
THR
71
A
O
THR
71
1_555
110.0
A
ASP
65
A
CG
ASP
65
1_555
A
CA
162
B
CA
CA
1_555
A
THR
71
A
OG1
THR
71
1_555
142.7
A
ASP
65
A
OD1
ASP
65
1_555
A
CA
162
B
CA
CA
1_555
A
THR
71
A
OG1
THR
71
1_555
172.7
A
ASP
65
A
OD2
ASP
65
1_555
A
CA
162
B
CA
CA
1_555
A
THR
71
A
OG1
THR
71
1_555
112.5
A
ASP
67
A
OD1
ASP
67
1_555
A
CA
162
B
CA
CA
1_555
A
THR
71
A
OG1
THR
71
1_555
120.5
A
SER
69
A
OG
SER
69
1_555
A
CA
162
B
CA
CA
1_555
A
THR
71
A
OG1
THR
71
1_555
64.2
A
THR
71
A
O
THR
71
1_555
A
CA
162
B
CA
CA
1_555
A
THR
71
A
OG1
THR
71
1_555
68.2
A
ASP
65
A
CG
ASP
65
1_555
A
CA
162
B
CA
CA
1_555
A
GLU
76
A
OE1
GLU
76
1_555
80.6
A
ASP
65
A
OD1
ASP
65
1_555
A
CA
162
B
CA
CA
1_555
A
GLU
76
A
OE1
GLU
76
1_555
69.8
A
ASP
65
A
OD2
ASP
65
1_555
A
CA
162
B
CA
CA
1_555
A
GLU
76
A
OE1
GLU
76
1_555
100.6
A
ASP
67
A
OD1
ASP
67
1_555
A
CA
162
B
CA
CA
1_555
A
GLU
76
A
OE1
GLU
76
1_555
123.3
A
SER
69
A
OG
SER
69
1_555
A
CA
162
B
CA
CA
1_555
A
GLU
76
A
OE1
GLU
76
1_555
154.3
A
THR
71
A
O
THR
71
1_555
A
CA
162
B
CA
CA
1_555
A
GLU
76
A
OE1
GLU
76
1_555
52.8
A
THR
71
A
OG1
THR
71
1_555
A
CA
162
B
CA
CA
1_555
A
GLU
76
A
OE1
GLU
76
1_555
115.3
A
ASP
65
A
CG
ASP
65
1_555
A
CA
162
B
CA
CA
1_555
A
GLU
76
A
OE2
GLU
76
1_555
113.2
A
ASP
65
A
OD1
ASP
65
1_555
A
CA
162
B
CA
CA
1_555
A
GLU
76
A
OE2
GLU
76
1_555
86.3
A
ASP
65
A
OD2
ASP
65
1_555
A
CA
162
B
CA
CA
1_555
A
GLU
76
A
OE2
GLU
76
1_555
142.3
A
ASP
67
A
OD1
ASP
67
1_555
A
CA
162
B
CA
CA
1_555
A
GLU
76
A
OE2
GLU
76
1_555
110.9
A
SER
69
A
OG
SER
69
1_555
A
CA
162
B
CA
CA
1_555
A
GLU
76
A
OE2
GLU
76
1_555
156.6
A
THR
71
A
O
THR
71
1_555
A
CA
162
B
CA
CA
1_555
A
GLU
76
A
OE2
GLU
76
1_555
77.9
A
THR
71
A
OG1
THR
71
1_555
A
CA
162
B
CA
CA
1_555
A
GLU
76
A
OE2
GLU
76
1_555
101.0
A
GLU
76
A
OE1
GLU
76
1_555
A
CA
162
B
CA
CA
1_555
A
GLU
76
A
OE2
GLU
76
1_555
47.2
A
ASP
105
A
OD1
ASP
105
1_555
A
CA
163
C
CA
CA
1_555
A
ASN
107
A
OD1
ASN
107
1_555
124.0
A
ASP
105
A
OD1
ASP
105
1_555
A
CA
163
C
CA
CA
1_555
A
ASP
109
A
OD1
ASP
109
1_555
90.7
A
ASN
107
A
OD1
ASN
107
1_555
A
CA
163
C
CA
CA
1_555
A
ASP
109
A
OD1
ASP
109
1_555
71.2
A
ASP
105
A
OD1
ASP
105
1_555
A
CA
163
C
CA
CA
1_555
A
TYR
111
A
O
TYR
111
1_555
72.2
A
ASN
107
A
OD1
ASN
107
1_555
A
CA
163
C
CA
CA
1_555
A
TYR
111
A
O
TYR
111
1_555
135.7
A
ASP
109
A
OD1
ASP
109
1_555
A
CA
163
C
CA
CA
1_555
A
TYR
111
A
O
TYR
111
1_555
67.5
A
ASP
105
A
OD1
ASP
105
1_555
A
CA
163
C
CA
CA
1_555
A
GLU
116
A
OE1
GLU
116
1_555
66.3
A
ASN
107
A
OD1
ASN
107
1_555
A
CA
163
C
CA
CA
1_555
A
GLU
116
A
OE1
GLU
116
1_555
120.6
A
ASP
109
A
OD1
ASP
109
1_555
A
CA
163
C
CA
CA
1_555
A
GLU
116
A
OE1
GLU
116
1_555
157.0
A
TYR
111
A
O
TYR
111
1_555
A
CA
163
C
CA
CA
1_555
A
GLU
116
A
OE1
GLU
116
1_555
103.7
A
ASP
105
A
OD1
ASP
105
1_555
A
CA
163
C
CA
CA
1_555
A
GLU
116
A
OE2
GLU
116
1_555
114.7
A
ASN
107
A
OD1
ASN
107
1_555
A
CA
163
C
CA
CA
1_555
A
GLU
116
A
OE2
GLU
116
1_555
84.7
A
ASP
109
A
OD1
ASP
109
1_555
A
CA
163
C
CA
CA
1_555
A
GLU
116
A
OE2
GLU
116
1_555
152.2
A
TYR
111
A
O
TYR
111
1_555
A
CA
163
C
CA
CA
1_555
A
GLU
116
A
OE2
GLU
116
1_555
129.1
A
GLU
116
A
OE1
GLU
116
1_555
A
CA
163
C
CA
CA
1_555
A
GLU
116
A
OE2
GLU
116
1_555
49.6
A
ASP
141
A
OD1
ASP
141
1_555
A
CA
164
D
CA
CA
1_555
A
ASN
143
A
OD1
ASN
143
1_555
55.4
A
ASP
141
A
OD1
ASP
141
1_555
A
CA
164
D
CA
CA
1_555
A
ASP
145
A
OD1
ASP
145
1_555
63.2
A
ASN
143
A
OD1
ASN
143
1_555
A
CA
164
D
CA
CA
1_555
A
ASP
145
A
OD1
ASP
145
1_555
75.9
A
ASP
141
A
OD1
ASP
141
1_555
A
CA
164
D
CA
CA
1_555
A
ASP
145
A
OD2
ASP
145
1_555
106.4
A
ASN
143
A
OD1
ASN
143
1_555
A
CA
164
D
CA
CA
1_555
A
ASP
145
A
OD2
ASP
145
1_555
86.9
A
ASP
145
A
OD1
ASP
145
1_555
A
CA
164
D
CA
CA
1_555
A
ASP
145
A
OD2
ASP
145
1_555
46.2
A
ASP
141
A
OD1
ASP
141
1_555
A
CA
164
D
CA
CA
1_555
A
ARG
147
A
O
ARG
147
1_555
97.3
A
ASN
143
A
OD1
ASN
143
1_555
A
CA
164
D
CA
CA
1_555
A
ARG
147
A
O
ARG
147
1_555
142.8
A
ASP
145
A
OD1
ASP
145
1_555
A
CA
164
D
CA
CA
1_555
A
ARG
147
A
O
ARG
147
1_555
68.7
A
ASP
145
A
OD2
ASP
145
1_555
A
CA
164
D
CA
CA
1_555
A
ARG
147
A
O
ARG
147
1_555
76.8
A
ASP
141
A
OD1
ASP
141
1_555
A
CA
164
D
CA
CA
1_555
A
GLU
152
A
OE2
GLU
152
1_555
110.3
A
ASN
143
A
OD1
ASN
143
1_555
A
CA
164
D
CA
CA
1_555
A
GLU
152
A
OE2
GLU
152
1_555
69.4
A
ASP
145
A
OD1
ASP
145
1_555
A
CA
164
D
CA
CA
1_555
A
GLU
152
A
OE2
GLU
152
1_555
138.9
A
ASP
145
A
OD2
ASP
145
1_555
A
CA
164
D
CA
CA
1_555
A
GLU
152
A
OE2
GLU
152
1_555
109.6
A
ARG
147
A
O
ARG
147
1_555
A
CA
164
D
CA
CA
1_555
A
GLU
152
A
OE2
GLU
152
1_555
147.6
A
ASP
141
A
OD1
ASP
141
1_555
A
CA
164
D
CA
CA
1_555
A
GLU
152
A
OE1
GLU
152
1_555
64.0
A
ASN
143
A
OD1
ASN
143
1_555
A
CA
164
D
CA
CA
1_555
A
GLU
152
A
OE1
GLU
152
1_555
61.6
A
ASP
145
A
OD1
ASP
145
1_555
A
CA
164
D
CA
CA
1_555
A
GLU
152
A
OE1
GLU
152
1_555
124.8
A
ASP
145
A
OD2
ASP
145
1_555
A
CA
164
D
CA
CA
1_555
A
GLU
152
A
OE1
GLU
152
1_555
147.4
A
ARG
147
A
O
ARG
147
1_555
A
CA
164
D
CA
CA
1_555
A
GLU
152
A
OE1
GLU
152
1_555
133.5
A
GLU
152
A
OE2
GLU
152
1_555
A
CA
164
D
CA
CA
1_555
A
GLU
152
A
OE1
GLU
152
1_555
53.5
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
ILE
36
A
O
ILE
36
A
N
VAL
72
A
N
VAL
72
A
N
ILE
112
A
N
ILE
112
A
O
ILE
148
A
O
ILE
148
1
A
ALA
1
A
ALA
1
1
Y
1
A
A
O
H
ILE
ASP
61
65
1.46
1
A
A
O
H
THR
GLN
13
16
1.53
1
A
A
O
H
VAL
ALA
28
31
1.60
1
A
ARG
46
0.220
SIDE CHAIN
1
A
ARG
83
0.309
SIDE CHAIN
1
A
ARG
102
0.317
SIDE CHAIN
1
A
LEU
12
-43.55
165.91
1
A
ALA
31
-77.51
-160.07
1
A
GLU
32
-146.30
-38.25
1
A
LEU
48
-76.97
-82.31
1
A
ASP
73
-107.56
-164.27
1
A
MET
85
-104.58
-64.21
1
A
ASP
87
59.12
113.83
1
A
SER
89
-177.57
-52.86
1
A
LYS
90
-56.60
174.43
1
A
LYS
92
-179.27
101.19
1
A
THR
93
-146.98
-124.17
1
A
ASP
105
-56.43
88.50
1
A
THR
124
-140.73
21.42
1
A
GLU
126
-74.95
-154.28
1
A
ASN
144
47.97
72.18
1
A
VAL
160
-158.08
-54.86
model building
X-PLOR
3.1
refinement
X-PLOR
3.1
phasing
X-PLOR
3.1
STRUCTURE OF CALCIUM-SATURATED CARDIAC TROPONIN C, NMR, 1 STRUCTURE
1
Y
N
2
N
N
2
N
N
2
N
N
A
LYS
6
A
LYS
6
HELX_P
A
GLU
10
A
GLU
10
1
HN
5
A
GLU
14
A
GLU
14
HELX_P
A
VAL
28
A
VAL
28
1
HA
15
A
THR
38
A
THR
38
HELX_P
A
LEU
48
A
LEU
48
1
HB
11
A
PRO
54
A
PRO
54
HELX_P
A
VAL
64
A
VAL
64
1
HC
11
A
PHE
74
A
PHE
74
HELX_P
A
ARG
83
A
ARG
83
1
HD
10
A
GLU
95
A
GLU
95
HELX_P
A
MET
103
A
MET
103
1
HE
9
A
LEU
114
A
LEU
114
HELX_P
A
ALA
123
A
ALA
123
1
HF
10
A
GLU
130
A
GLU
130
HELX_P
A
GLY
140
A
GLY
140
1
HG
11
A
TYR
150
A
TYR
150
HELX_P
A
LYS
158
A
LYS
158
1
HH
9
metalc
2.384
A
ASP
65
A
CG
ASP
65
1_555
A
CA
162
B
CA
CA
1_555
metalc
2.080
A
ASP
65
A
OD1
ASP
65
1_555
A
CA
162
B
CA
CA
1_555
metalc
2.184
A
ASP
65
A
OD2
ASP
65
1_555
A
CA
162
B
CA
CA
1_555
metalc
2.807
A
ASP
67
A
OD1
ASP
67
1_555
A
CA
162
B
CA
CA
1_555
metalc
2.737
A
SER
69
A
OG
SER
69
1_555
A
CA
162
B
CA
CA
1_555
metalc
2.807
A
THR
71
A
O
THR
71
1_555
A
CA
162
B
CA
CA
1_555
metalc
2.747
A
THR
71
A
OG1
THR
71
1_555
A
CA
162
B
CA
CA
1_555
metalc
2.782
A
GLU
76
A
OE1
GLU
76
1_555
A
CA
162
B
CA
CA
1_555
metalc
2.573
A
GLU
76
A
OE2
GLU
76
1_555
A
CA
162
B
CA
CA
1_555
metalc
2.809
A
ASP
105
A
OD1
ASP
105
1_555
A
CA
163
C
CA
CA
1_555
metalc
2.781
A
ASN
107
A
OD1
ASN
107
1_555
A
CA
163
C
CA
CA
1_555
metalc
2.104
A
ASP
109
A
OD1
ASP
109
1_555
A
CA
163
C
CA
CA
1_555
metalc
2.084
A
TYR
111
A
O
TYR
111
1_555
A
CA
163
C
CA
CA
1_555
metalc
2.421
A
GLU
116
A
OE1
GLU
116
1_555
A
CA
163
C
CA
CA
1_555
metalc
2.684
A
GLU
116
A
OE2
GLU
116
1_555
A
CA
163
C
CA
CA
1_555
metalc
2.770
A
ASP
141
A
OD1
ASP
141
1_555
A
CA
164
D
CA
CA
1_555
metalc
2.765
A
ASN
143
A
OD1
ASN
143
1_555
A
CA
164
D
CA
CA
1_555
metalc
2.449
A
ASP
145
A
OD1
ASP
145
1_555
A
CA
164
D
CA
CA
1_555
metalc
2.931
A
ASP
145
A
OD2
ASP
145
1_555
A
CA
164
D
CA
CA
1_555
metalc
2.158
A
ARG
147
A
O
ARG
147
1_555
A
CA
164
D
CA
CA
1_555
metalc
2.264
A
GLU
152
A
OE2
GLU
152
1_555
A
CA
164
D
CA
CA
1_555
metalc
2.502
A
GLU
152
A
OE1
GLU
152
1_555
A
CA
164
D
CA
CA
1_555
MUSCLE PROTEIN
CARDIAC, MUSCLE PROTEIN, REGULATORY, CALCIUM BINDING
TNNC1_CHICK
UNP
1
1
P09860
MDDIYKAAVEQLTEEQKNEFKAAFDIFVLGAEDGCISTKELGKVMRMLGQNPTPEELQEMIDEVDEDGSGTVDFDEFLVM
MVRCMKDDSKGKTEEELSDLFRMFDKNADGYIDLEELKIMLQATGETITEDDIEELMKDGDKNNDGRIDYDEFLEFMKGV
E
3
161
1AJ4
3
161
P09860
A
1
3
161
1
CYS
engineered mutation
SER
35
1AJ4
A
P09860
UNP
35
35
1
CYS
engineered mutation
SER
84
1AJ4
A
P09860
UNP
84
84
2
2
anti-parallel
anti-parallel
A
SER
35
A
SER
35
A
SER
37
A
SER
37
A
THR
71
A
THR
71
A
ASP
73
A
ASP
73
A
TYR
111
A
TYR
111
A
ASP
113
A
ASP
113
A
ARG
147
A
ARG
147
A
ASP
149
A
ASP
149
BINDING SITE FOR RESIDUE CA A 162
A
CA
162
Software
5
BINDING SITE FOR RESIDUE CA A 163
A
CA
163
Software
6
BINDING SITE FOR RESIDUE CA A 164
A
CA
164
Software
5
A
ASP
65
A
ASP
65
5
1_555
A
ASP
67
A
ASP
67
5
1_555
A
SER
69
A
SER
69
5
1_555
A
THR
71
A
THR
71
5
1_555
A
GLU
76
A
GLU
76
5
1_555
A
ASP
105
A
ASP
105
6
1_555
A
ASN
107
A
ASN
107
6
1_555
A
ASP
109
A
ASP
109
6
1_555
A
TYR
111
A
TYR
111
6
1_555
A
ILE
112
A
ILE
112
6
1_555
A
GLU
116
A
GLU
116
6
1_555
A
ASP
141
A
ASP
141
5
1_555
A
ASN
143
A
ASN
143
5
1_555
A
ASP
145
A
ASP
145
5
1_555
A
ARG
147
A
ARG
147
5
1_555
A
GLU
152
A
GLU
152
5
1_555
1
P 1