0.010475
0.000000
0.000000
0.000000
0.010475
0.000000
0.000000
0.000000
0.008621
0.00000
0.00000
0.00000
Xu, X.
Marni, F.
Wu, X.
Su, Z.
Musayev, F.
Shrestha, S.
Xie, C.
Gao, W.
Liu, Q.
Zhou, L.
http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic
16
90.00
90.00
90.00
95.467
95.467
115.990
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
C10 H12 N5 O6 P
329.206
ADENOSINE-3',5'-CYCLIC-MONOPHOSPHATE
CYCLIC AMP; CAMP
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 H10 N3 O2 1
156.162
y
HISTIDINE
L-peptide linking
H2 O
18.015
WATER
non-polymer
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
O4 P -3
94.971
PHOSPHATE ION
non-polymer
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
R
P
N
75
N
O
N
76
N
O
N
77
N
O
N
78
N
C
N
79
R
C
N
80
N
O
N
81
S
C
N
82
N
O
N
83
R
C
N
84
N
O
N
85
R
C
Y
86
N
N
Y
87
N
C
Y
88
N
N
Y
89
N
C
Y
90
N
C
N
91
N
N
Y
92
N
N
Y
93
N
C
Y
94
N
N
Y
95
N
C
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
H
N
108
N
N
N
109
R
C
N
110
N
C
N
111
N
O
N
112
N
C
N
113
N
S
N
114
N
O
N
115
N
H
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
N
N
123
S
C
N
124
N
C
N
125
N
O
N
126
N
C
N
127
N
C
N
128
N
C
N
129
N
O
N
130
N
N
N
131
N
O
N
132
N
H
N
133
N
H
N
134
N
H
N
135
N
H
N
136
N
H
N
137
N
H
N
138
N
H
N
139
N
H
N
140
N
H
N
141
N
H
N
142
N
N
N
143
S
C
N
144
N
C
N
145
N
O
N
146
N
C
N
147
N
C
N
148
N
C
N
149
N
O
N
150
N
O
N
151
N
O
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
H
N
161
N
N
N
162
N
C
N
163
N
C
N
164
N
O
N
165
N
O
N
166
N
H
N
167
N
H
N
168
N
H
N
169
N
H
N
170
N
H
N
171
N
N
N
172
S
C
N
173
N
C
N
174
N
O
N
175
N
C
Y
176
N
C
Y
177
N
N
Y
178
N
C
Y
179
N
C
Y
180
N
N
N
181
N
O
N
182
N
H
N
183
N
H
N
184
N
H
N
185
N
H
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
O
N
193
N
H
N
194
N
H
N
195
N
N
N
196
S
C
N
197
N
C
N
198
N
O
N
199
S
C
N
200
N
C
N
201
N
C
N
202
N
C
N
203
N
O
N
204
N
H
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
H
N
215
N
H
N
216
N
H
N
217
N
N
N
218
S
C
N
219
N
C
N
220
N
O
N
221
N
C
N
222
N
C
N
223
N
C
N
224
N
C
N
225
N
O
N
226
N
H
N
227
N
H
N
228
N
H
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
N
N
240
S
C
N
241
N
C
N
242
N
O
N
243
N
C
N
244
N
C
N
245
N
C
N
246
N
C
N
247
N
N
N
248
N
O
N
249
N
H
N
250
N
H
N
251
N
H
N
252
N
H
N
253
N
H
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
N
N
265
S
C
N
266
N
C
N
267
N
O
N
268
N
C
N
269
N
C
N
270
N
S
N
271
N
C
N
272
N
O
N
273
N
H
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
H
N
282
N
H
N
283
N
H
N
284
N
N
N
285
S
C
N
286
N
C
N
287
N
O
N
288
N
C
Y
289
N
C
Y
290
N
C
Y
291
N
C
Y
292
N
C
Y
293
N
C
Y
294
N
C
N
295
N
O
N
296
N
H
N
297
N
H
N
298
N
H
N
299
N
H
N
300
N
H
N
301
N
H
N
302
N
H
N
303
N
H
N
304
N
H
N
305
N
H
N
306
N
H
N
307
N
P
N
308
N
O
N
309
N
O
N
310
N
O
N
311
N
O
N
312
N
N
N
313
S
C
N
314
N
C
N
315
N
O
N
316
N
C
N
317
N
C
N
318
N
C
N
319
N
O
N
320
N
H
N
321
N
H
N
322
N
H
N
323
N
H
N
324
N
H
N
325
N
H
N
326
N
H
N
327
N
H
N
328
N
H
N
329
N
N
N
330
S
C
N
331
N
C
N
332
N
O
N
333
N
C
N
334
N
O
N
335
N
O
N
336
N
H
N
337
N
H
N
338
N
H
N
339
N
H
N
340
N
H
N
341
N
H
N
342
N
H
N
343
N
N
N
344
S
C
N
345
N
C
N
346
N
O
N
347
R
C
N
348
N
O
N
349
N
C
N
350
N
O
N
351
N
H
N
352
N
H
N
353
N
H
N
354
N
H
N
355
N
H
N
356
N
H
N
357
N
H
N
358
N
H
N
359
N
H
N
360
N
N
N
361
S
C
N
362
N
C
N
363
N
O
N
364
N
C
Y
365
N
C
Y
366
N
C
Y
367
N
C
Y
368
N
C
Y
369
N
C
Y
370
N
C
N
371
N
O
N
372
N
O
N
373
N
H
N
374
N
H
N
375
N
H
N
376
N
H
N
377
N
H
N
378
N
H
N
379
N
H
N
380
N
H
N
381
N
H
N
382
N
H
N
383
N
H
N
384
N
N
N
385
S
C
N
386
N
C
N
387
N
O
N
388
N
C
N
389
N
C
N
390
N
C
N
391
N
O
N
392
N
H
N
393
N
H
N
394
N
H
N
395
N
H
N
396
N
H
N
397
N
H
N
398
N
H
N
399
N
H
N
400
N
H
N
401
N
H
N
402
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
doub
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
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
sing
N
90
N
sing
N
91
N
sing
Y
92
N
sing
Y
93
N
sing
Y
94
N
doub
N
95
N
sing
Y
96
N
sing
Y
97
N
sing
Y
98
N
doub
N
99
N
sing
Y
100
N
doub
N
101
N
sing
N
102
N
sing
Y
103
N
sing
Y
104
N
doub
N
105
N
sing
Y
106
N
sing
N
107
N
sing
N
108
N
sing
N
109
N
sing
N
110
N
sing
N
111
N
sing
N
112
N
sing
N
113
N
doub
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
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
doub
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
doub
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
doub
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
doub
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
doub
N
173
N
sing
N
174
N
sing
N
175
N
sing
N
176
N
sing
Y
177
N
sing
Y
178
N
doub
Y
179
N
doub
N
180
N
sing
Y
181
N
sing
N
182
N
sing
Y
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
doub
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
sing
N
212
N
sing
N
213
N
sing
N
214
N
sing
N
215
N
sing
N
216
N
doub
N
217
N
sing
N
218
N
sing
N
219
N
sing
N
220
N
sing
N
221
N
sing
N
222
N
sing
N
223
N
sing
N
224
N
sing
N
225
N
sing
N
226
N
sing
N
227
N
sing
N
228
N
sing
N
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
doub
N
238
N
sing
N
239
N
sing
N
240
N
sing
N
241
N
sing
N
242
N
sing
N
243
N
sing
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
sing
N
261
N
doub
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
sing
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
doub
N
281
N
sing
N
282
N
sing
N
283
N
sing
N
284
N
sing
Y
285
N
doub
Y
286
N
sing
Y
287
N
sing
N
288
N
sing
Y
289
N
doub
N
290
N
sing
Y
291
N
doub
N
292
N
sing
Y
293
N
sing
N
294
N
sing
N
295
N
sing
N
296
N
sing
N
297
N
doub
N
298
N
sing
N
299
N
sing
N
300
N
sing
N
301
N
sing
N
302
N
sing
N
303
N
sing
N
304
N
sing
N
305
N
sing
N
306
N
sing
N
307
N
doub
N
308
N
sing
N
309
N
sing
N
310
N
sing
N
311
N
sing
N
312
N
sing
N
313
N
sing
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
doub
N
325
N
sing
N
326
N
sing
N
327
N
sing
N
328
N
sing
N
329
N
sing
N
330
N
sing
N
331
N
sing
N
332
N
sing
N
333
N
sing
N
334
N
sing
N
335
N
sing
N
336
N
sing
N
337
N
doub
N
338
N
sing
N
339
N
sing
N
340
N
sing
N
341
N
sing
N
342
N
sing
N
343
N
sing
N
344
N
sing
N
345
N
sing
N
346
N
sing
N
347
N
sing
N
348
N
sing
N
349
N
sing
N
350
N
sing
N
351
N
sing
N
352
N
sing
N
353
N
doub
N
354
N
sing
N
355
N
sing
N
356
N
sing
N
357
N
sing
Y
358
N
doub
Y
359
N
sing
Y
360
N
sing
N
361
N
sing
Y
362
N
doub
N
363
N
sing
Y
364
N
doub
N
365
N
sing
Y
366
N
sing
N
367
N
sing
N
368
N
sing
N
369
N
sing
N
370
N
sing
N
371
N
sing
N
372
N
sing
N
373
N
sing
N
374
N
sing
N
375
N
sing
N
376
N
sing
N
377
N
doub
N
378
N
sing
N
379
N
sing
N
380
N
sing
N
381
N
sing
N
382
N
sing
N
383
N
sing
N
384
N
sing
N
385
N
sing
N
386
N
sing
N
387
N
sing
N
388
N
sing
UK
Structure
STRUE6
2005
0969-2126
20
2116
2123
10.1016/j.str.2012.09.017
23103389
Local and Global Interpretations of a Disease-Causing Mutation near the Ligand Entry Path in Hyperpolarization-Activated cAMP-Gated Channel.
2012
10.2210/pdb4hbn/pdb
pdb_00004hbn
1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
100
1
IMAGE PLATE
2010-12-21
RIGAKU RAXIS IV++
No.
SINGLE WAVELENGTH
M
x-ray
1
1.54
1.0
1.54
ROTATING ANODE
RIGAKU MICROMAX-007
24211.742
Potassium/sodium hyperpolarization-activated cyclic nucleotide-gated channel 4
C-linker and CNBD: unp residues 521-724
S672R
1
man
polymer
329.206
ADENOSINE-3',5'-CYCLIC-MONOPHOSPHATE
1
syn
non-polymer
94.971
PHOSPHATE ION
1
syn
non-polymer
18.015
water
60
nat
water
no
no
SDSSRRQYQEKYKQVEQYMSFHKLPPDTRQRIHDYYEHRYQGKMFDEESILGELSEPLREEIINFNCRKLVASMPLFANA
DPNFVTSMLTKLRFEVFQPGDYIIREGTIGKKMYFIQHGVVSVLTKGNKETKLADGSYFGEICLLTRGRRTARVRADTYC
RLYSLSVDNFNEVLEEYPMMRRAFETVALDRLDRIGKKNSILLHK
SDSSRRQYQEKYKQVEQYMSFHKLPPDTRQRIHDYYEHRYQGKMFDEESILGELSEPLREEIINFNCRKLVASMPLFANA
DPNFVTSMLTKLRFEVFQPGDYIIREGTIGKKMYFIQHGVVSVLTKGNKETKLADGSYFGEICLLTRGRRTARVRADTYC
RLYSLSVDNFNEVLEEYPMMRRAFETVALDRLDRIGKKNSILLHK
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
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
human
sample
HCN4
9606
Homo sapiens
469008
Escherichia coli
BL21(DE3)
pET28
pSMT3_hHCN4_S672R
1
2.73
54.93
VAPOR DIFFUSION, HANGING DROP
4.2
1.6 M KH2PO4/Na2HPO4 and 0.1 M Phosphate-Citrate, pH 4.2, VAPOR DIFFUSION, HANGING DROP, temperature 277K
277
chem_comp_atom
chem_comp_bond
database_2
struct_ref_seq_dif
struct_site
repository
Initial release
Data collection
Database references
Derived calculations
1
0
2013-01-16
1
1
2024-02-28
_database_2.pdbx_DOI
_database_2.pdbx_database_accession
_struct_ref_seq_dif.details
_struct_site.pdbx_auth_asym_id
_struct_site.pdbx_auth_comp_id
_struct_site.pdbx_auth_seq_id
RCSB
Y
RCSB
2012-09-28
REL
REL
CMP
ADENOSINE-3',5'-CYCLIC-MONOPHOSPHATE
PO4
PHOSPHATE ION
HOH
water
CMP
201
2
CMP
CMP
801
A
PO4
1
3
PO4
PO4
802
A
HOH
1
4
HOH
HOH
901
A
HOH
2
4
HOH
HOH
902
A
HOH
3
4
HOH
HOH
903
A
HOH
4
4
HOH
HOH
904
A
HOH
5
4
HOH
HOH
905
A
HOH
6
4
HOH
HOH
906
A
HOH
7
4
HOH
HOH
907
A
HOH
8
4
HOH
HOH
908
A
HOH
9
4
HOH
HOH
909
A
HOH
10
4
HOH
HOH
910
A
HOH
11
4
HOH
HOH
911
A
HOH
12
4
HOH
HOH
912
A
HOH
13
4
HOH
HOH
913
A
HOH
14
4
HOH
HOH
914
A
HOH
15
4
HOH
HOH
915
A
HOH
16
4
HOH
HOH
916
A
HOH
17
4
HOH
HOH
917
A
HOH
18
4
HOH
HOH
918
A
HOH
19
4
HOH
HOH
919
A
HOH
20
4
HOH
HOH
920
A
HOH
21
4
HOH
HOH
921
A
HOH
22
4
HOH
HOH
922
A
HOH
23
4
HOH
HOH
923
A
HOH
24
4
HOH
HOH
924
A
HOH
25
4
HOH
HOH
925
A
HOH
26
4
HOH
HOH
926
A
HOH
27
4
HOH
HOH
927
A
HOH
28
4
HOH
HOH
928
A
HOH
29
4
HOH
HOH
929
A
HOH
30
4
HOH
HOH
930
A
HOH
31
4
HOH
HOH
931
A
HOH
32
4
HOH
HOH
932
A
HOH
33
4
HOH
HOH
933
A
HOH
34
4
HOH
HOH
934
A
HOH
35
4
HOH
HOH
935
A
HOH
36
4
HOH
HOH
936
A
HOH
37
4
HOH
HOH
937
A
HOH
38
4
HOH
HOH
938
A
HOH
39
4
HOH
HOH
939
A
HOH
40
4
HOH
HOH
940
A
HOH
41
4
HOH
HOH
941
A
HOH
42
4
HOH
HOH
942
A
HOH
43
4
HOH
HOH
943
A
HOH
44
4
HOH
HOH
944
A
HOH
45
4
HOH
HOH
945
A
HOH
46
4
HOH
HOH
946
A
HOH
47
4
HOH
HOH
947
A
HOH
48
4
HOH
HOH
948
A
HOH
49
4
HOH
HOH
949
A
HOH
50
4
HOH
HOH
950
A
HOH
51
4
HOH
HOH
951
A
HOH
52
4
HOH
HOH
952
A
HOH
53
4
HOH
HOH
953
A
HOH
54
4
HOH
HOH
954
A
HOH
55
4
HOH
HOH
955
A
HOH
56
4
HOH
HOH
956
A
HOH
57
4
HOH
HOH
957
A
HOH
58
4
HOH
HOH
958
A
HOH
59
4
HOH
HOH
959
A
HOH
60
4
HOH
HOH
960
A
SER
520
n
1
SER
520
A
ASP
521
n
2
ASP
521
A
SER
522
n
3
SER
522
A
SER
523
n
4
SER
523
A
ARG
524
n
5
ARG
524
A
ARG
525
n
6
ARG
525
A
GLN
526
n
7
GLN
526
A
TYR
527
n
8
TYR
527
A
GLN
528
n
9
GLN
528
A
GLU
529
n
10
GLU
529
A
LYS
530
n
11
LYS
530
A
TYR
531
n
12
TYR
531
A
LYS
532
n
13
LYS
532
A
GLN
533
n
14
GLN
533
A
VAL
534
n
15
VAL
534
A
GLU
535
n
16
GLU
535
A
GLN
536
n
17
GLN
536
A
TYR
537
n
18
TYR
537
A
MET
538
n
19
MET
538
A
SER
539
n
20
SER
539
A
PHE
540
n
21
PHE
540
A
HIS
541
n
22
HIS
541
A
LYS
542
n
23
LYS
542
A
LEU
543
n
24
LEU
543
A
PRO
544
n
25
PRO
544
A
PRO
545
n
26
PRO
545
A
ASP
546
n
27
ASP
546
A
THR
547
n
28
THR
547
A
ARG
548
n
29
ARG
548
A
GLN
549
n
30
GLN
549
A
ARG
550
n
31
ARG
550
A
ILE
551
n
32
ILE
551
A
HIS
552
n
33
HIS
552
A
ASP
553
n
34
ASP
553
A
TYR
554
n
35
TYR
554
A
TYR
555
n
36
TYR
555
A
GLU
556
n
37
GLU
556
A
HIS
557
n
38
HIS
557
A
ARG
558
n
39
ARG
558
A
TYR
559
n
40
TYR
559
A
GLN
560
n
41
GLN
560
A
GLY
561
n
42
GLY
561
A
LYS
562
n
43
LYS
562
A
MET
563
n
44
MET
563
A
PHE
564
n
45
PHE
564
A
ASP
565
n
46
ASP
565
A
GLU
566
n
47
GLU
566
A
GLU
567
n
48
GLU
567
A
SER
568
n
49
SER
568
A
ILE
569
n
50
ILE
569
A
LEU
570
n
51
LEU
570
A
GLY
571
n
52
GLY
571
A
GLU
572
n
53
GLU
572
A
LEU
573
n
54
LEU
573
A
SER
574
n
55
SER
574
A
GLU
575
n
56
GLU
575
A
PRO
576
n
57
PRO
576
A
LEU
577
n
58
LEU
577
A
ARG
578
n
59
ARG
578
A
GLU
579
n
60
GLU
579
A
GLU
580
n
61
GLU
580
A
ILE
581
n
62
ILE
581
A
ILE
582
n
63
ILE
582
A
ASN
583
n
64
ASN
583
A
PHE
584
n
65
PHE
584
A
ASN
585
n
66
ASN
585
A
CYS
586
n
67
CYS
586
A
ARG
587
n
68
ARG
587
A
LYS
588
n
69
LYS
588
A
LEU
589
n
70
LEU
589
A
VAL
590
n
71
VAL
590
A
ALA
591
n
72
ALA
591
A
SER
592
n
73
SER
592
A
MET
593
n
74
MET
593
A
PRO
594
n
75
PRO
594
A
LEU
595
n
76
LEU
595
A
PHE
596
n
77
PHE
596
A
ALA
597
n
78
ALA
597
A
ASN
598
n
79
ASN
598
A
ALA
599
n
80
ALA
599
A
ASP
600
n
81
ASP
600
A
PRO
601
n
82
PRO
601
A
ASN
602
n
83
ASN
602
A
PHE
603
n
84
PHE
603
A
VAL
604
n
85
VAL
604
A
THR
605
n
86
THR
605
A
SER
606
n
87
SER
606
A
MET
607
n
88
MET
607
A
LEU
608
n
89
LEU
608
A
THR
609
n
90
THR
609
A
LYS
610
n
91
LYS
610
A
LEU
611
n
92
LEU
611
A
ARG
612
n
93
ARG
612
A
PHE
613
n
94
PHE
613
A
GLU
614
n
95
GLU
614
A
VAL
615
n
96
VAL
615
A
PHE
616
n
97
PHE
616
A
GLN
617
n
98
GLN
617
A
PRO
618
n
99
PRO
618
A
GLY
619
n
100
GLY
619
A
ASP
620
n
101
ASP
620
A
TYR
621
n
102
TYR
621
A
ILE
622
n
103
ILE
622
A
ILE
623
n
104
ILE
623
A
ARG
624
n
105
ARG
624
A
GLU
625
n
106
GLU
625
A
GLY
626
n
107
GLY
626
A
THR
627
n
108
THR
627
A
ILE
628
n
109
ILE
628
A
GLY
629
n
110
GLY
629
A
LYS
630
n
111
LYS
630
A
LYS
631
n
112
LYS
631
A
MET
632
n
113
MET
632
A
TYR
633
n
114
TYR
633
A
PHE
634
n
115
PHE
634
A
ILE
635
n
116
ILE
635
A
GLN
636
n
117
GLN
636
A
HIS
637
n
118
HIS
637
A
GLY
638
n
119
GLY
638
A
VAL
639
n
120
VAL
639
A
VAL
640
n
121
VAL
640
A
SER
641
n
122
SER
641
A
VAL
642
n
123
VAL
642
A
LEU
643
n
124
LEU
643
A
LYS
644
n
125
THR
644
A
n
126
645
A
GLY
646
n
127
GLY
646
A
ASN
647
n
128
ASN
647
A
LYS
648
n
129
LYS
648
A
GLU
649
n
130
GLU
649
A
THR
650
n
131
THR
650
A
LYS
651
n
132
LYS
651
A
LEU
652
n
133
LEU
652
A
ALA
653
n
134
ALA
653
A
ASP
654
n
135
ASP
654
A
GLY
655
n
136
GLY
655
A
SER
656
n
137
SER
656
A
TYR
657
n
138
TYR
657
A
PHE
658
n
139
PHE
658
A
GLY
659
n
140
GLY
659
A
GLU
660
n
141
GLU
660
A
ILE
661
n
142
ILE
661
A
CYS
662
n
143
CYS
662
A
LEU
663
n
144
LEU
663
A
LEU
664
n
145
LEU
664
A
THR
665
n
146
THR
665
A
ARG
666
n
147
ARG
666
A
GLY
667
n
148
GLY
667
A
ARG
668
n
149
ARG
668
A
ARG
669
n
150
ARG
669
A
THR
670
n
151
THR
670
A
ALA
671
n
152
ALA
671
A
ARG
672
n
153
ARG
672
A
VAL
673
n
154
VAL
673
A
ARG
674
n
155
ARG
674
A
ALA
675
n
156
ALA
675
A
ASP
676
n
157
ASP
676
A
THR
677
n
158
THR
677
A
TYR
678
n
159
TYR
678
A
CYS
679
n
160
CYS
679
A
ARG
680
n
161
ARG
680
A
LEU
681
n
162
LEU
681
A
TYR
682
n
163
TYR
682
A
SER
683
n
164
SER
683
A
LEU
684
n
165
LEU
684
A
SER
685
n
166
SER
685
A
VAL
686
n
167
VAL
686
A
ASP
687
n
168
ASP
687
A
ASN
688
n
169
ASN
688
A
PHE
689
n
170
PHE
689
A
ASN
690
n
171
ASN
690
A
GLU
691
n
172
GLU
691
A
VAL
692
n
173
VAL
692
A
LEU
693
n
174
LEU
693
A
GLU
694
n
175
GLU
694
A
GLU
695
n
176
GLU
695
A
TYR
696
n
177
TYR
696
A
PRO
697
n
178
PRO
697
A
MET
698
n
179
MET
698
A
MET
699
n
180
MET
699
A
ARG
700
n
181
ARG
700
A
ARG
701
n
182
ARG
701
A
ALA
702
n
183
ALA
702
A
PHE
703
n
184
PHE
703
A
GLU
704
n
185
GLU
704
A
THR
705
n
186
THR
705
A
VAL
706
n
187
VAL
706
A
ALA
707
n
188
ALA
707
A
LEU
708
n
189
LEU
708
A
ASP
709
n
190
ASP
709
A
ARG
710
n
191
ARG
710
A
LEU
711
n
192
LEU
711
A
ASP
712
n
193
ASP
712
A
ARG
713
n
194
ARG
713
A
ILE
714
n
195
ILE
714
A
GLY
715
n
196
GLY
715
A
LYS
716
n
197
LYS
716
A
LYS
717
n
198
LYS
717
A
ASN
718
n
199
ASN
718
A
SER
719
n
200
SER
719
A
n
201
720
A
n
202
721
A
n
203
722
A
n
204
723
A
n
205
724
A
author_and_software_defined_assembly
PISA
4
tetrameric
12630
-74
38170
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
-1.0000000000
0.0000000000
0.0000000000
0.0000000000
-1.0000000000
0.0000000000
0.0000000000
0.0000000000
1.0000000000
2_555
-x,-y,z
crystal symmetry operation
0.0000000000
0.0000000000
0.0000000000
0.0000000000
-1.0000000000
0.0000000000
1.0000000000
0.0000000000
0.0000000000
0.0000000000
0.0000000000
1.0000000000
3_555
-y,x,z
crystal symmetry operation
0.0000000000
0.0000000000
0.0000000000
0.0000000000
1.0000000000
0.0000000000
-1.0000000000
0.0000000000
0.0000000000
0.0000000000
0.0000000000
1.0000000000
4_555
y,-x,z
crystal symmetry operation
0.0000000000
0.0000000000
0.0000000000
A
N
GLU
614
A
N
GLU
95
A
O
LEU
681
A
O
LEU
162
A
O
LEU
684
A
O
LEU
165
A
N
MET
632
A
N
MET
113
A
N
TYR
633
A
N
TYR
114
A
O
PHE
658
A
O
PHE
139
A
N
ILE
623
A
N
ILE
104
A
O
VAL
673
A
O
VAL
154
A
O
ARG
674
A
O
ARG
155
A
N
SER
641
A
N
SER
122
A
N
VAL
642
A
N
VAL
123
A
O
THR
650
A
O
THR
131
1
A
CG
ASP
521
A
CG
ASP
2
1
Y
1
A
OD1
ASP
521
A
OD1
ASP
2
1
Y
1
A
OD2
ASP
521
A
OD2
ASP
2
1
Y
1
A
CG
GLN
526
A
CG
GLN
7
1
Y
1
A
CD
GLN
526
A
CD
GLN
7
1
Y
1
A
OE1
GLN
526
A
OE1
GLN
7
1
Y
1
A
NE2
GLN
526
A
NE2
GLN
7
1
Y
1
A
CG
GLU
556
A
CG
GLU
37
1
Y
1
A
CD
GLU
556
A
CD
GLU
37
1
Y
1
A
OE1
GLU
556
A
OE1
GLU
37
1
Y
1
A
OE2
GLU
556
A
OE2
GLU
37
1
Y
1
A
CG
ARG
612
A
CG
ARG
93
1
Y
1
A
CD
ARG
612
A
CD
ARG
93
1
Y
1
A
NE
ARG
612
A
NE
ARG
93
1
Y
1
A
CZ
ARG
612
A
CZ
ARG
93
1
Y
1
A
NH1
ARG
612
A
NH1
ARG
93
1
Y
1
A
NH2
ARG
612
A
NH2
ARG
93
1
Y
1
A
CG
LYS
630
A
CG
LYS
111
1
Y
1
A
CD
LYS
630
A
CD
LYS
111
1
Y
1
A
CE
LYS
630
A
CE
LYS
111
1
Y
1
A
NZ
LYS
630
A
NZ
LYS
111
1
Y
1
A
OG1
THR
644
A
OG1
THR
125
1
Y
1
A
CG2
THR
644
A
CG2
THR
125
1
Y
1
A
CG
ASN
647
A
CG
ASN
128
1
Y
1
A
OD1
ASN
647
A
OD1
ASN
128
1
Y
1
A
ND2
ASN
647
A
ND2
ASN
128
1
Y
1
A
CG
LYS
648
A
CG
LYS
129
1
Y
1
A
CD
LYS
648
A
CD
LYS
129
1
Y
1
A
CE
LYS
648
A
CE
LYS
129
1
Y
1
A
NZ
LYS
648
A
NZ
LYS
129
1
Y
1
A
CG
GLU
649
A
CG
GLU
130
1
Y
1
A
CD
GLU
649
A
CD
GLU
130
1
Y
1
A
OE1
GLU
649
A
OE1
GLU
130
1
Y
1
A
OE2
GLU
649
A
OE2
GLU
130
1
Y
1
A
CG
LYS
717
A
CG
LYS
198
1
Y
1
A
CD
LYS
717
A
CD
LYS
198
1
Y
1
A
CE
LYS
717
A
CE
LYS
198
1
Y
1
A
NZ
LYS
717
A
NZ
LYS
198
1
Y
1
A
CG
ASN
718
A
CG
ASN
199
1
Y
1
A
OD1
ASN
718
A
OD1
ASN
199
1
Y
1
A
ND2
ASN
718
A
ND2
ASN
199
1
Y
1
A
OG
SER
719
A
OG
SER
200
1
Y
1
A
LYS
645
A
LYS
126
1
Y
1
A
ILE
720
A
ILE
201
1
Y
1
A
LEU
721
A
LEU
202
1
Y
1
A
LEU
722
A
LEU
203
1
Y
1
A
HIS
723
A
HIS
204
1
Y
1
A
LYS
724
A
LYS
205
1
Y
1
A
A
OG
O3
SER
PO4
568
802
2.18
1
A
SER
522
-168.97
-37.32
1
A
GLN
560
36.94
19.89
1
A
ASP
565
-72.62
40.38
1
A
ASP
620
-45.88
157.21
1
A
ASN
647
-100.11
-131.73
1
A
ALA
671
-167.89
-167.10
1
A
TYR
678
-59.63
92.75
1
A
MET
698
-37.55
-35.07
1
A
ILE
714
-91.20
-84.66
48.092
-1.85
0.00
0.00
-1.85
0.00
3.69
0.903
0.879
HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
0.29669
0.25746
0.25941
2.60
50.00
400
8484
7972
4.8
97.68
13.493
0.293
RANDOM
1
THROUGHOUT
MOLECULAR REPLACEMENT
0.816
0.364
0.80
0.80
1.40
MAXIMUM LIKELIHOOD
MASK
2.60
50.00
60
1692
27
0
1605
0.007
0.022
1668
1.238
1.980
2251
6.488
5.000
197
34.072
22.500
84
20.028
15.000
287
23.661
15.000
18
0.083
0.200
239
0.009
0.021
1270
1.017
1.500
989
1.900
2.000
1584
2.848
3.000
679
4.491
4.500
667
0.286
0.251
2.667
30
581
20
100.00
2.6
50
4HBN
55982
8484
3.0
1.0
1
99.1
0.232
2.60
2.69
7.6
1
100
0.209
2.69
2.80
8.0
1
100
0.176
2.80
2.93
9.4
1
99.9
0.131
2.93
3.08
11.4
1
100
0.099
3.08
3.28
14.2
1
99.9
0.084
3.28
3.53
16.3
1
99.8
0.100
3.53
3.88
15.2
1
99.3
0.036
3.88
4.44
40.3
1
99.5
0.027
4.44
5.59
52.5
1
100
0.019
5.59
29.17
65.4
1
93.7
data collection
MAR345dtb
phasing
PHASES
refinement
REFMAC
5.5.0102
data reduction
d*TREK
data scaling
d*TREK
Crystal structure of the human HCN4 channel C-terminus carrying the S672R mutation
1
N
N
2
N
N
3
N
N
4
N
N
A
SER
522
A
SER
3
HELX_P
A
HIS
541
A
HIS
22
1
1
20
A
PRO
544
A
PRO
25
HELX_P
A
GLN
560
A
GLN
41
1
2
17
A
ASP
565
A
ASP
46
HELX_P
A
LEU
573
A
LEU
54
1
3
9
A
SER
574
A
SER
55
HELX_P
A
CYS
586
A
CYS
67
1
4
13
A
CYS
586
A
CYS
67
HELX_P
A
SER
592
A
SER
73
1
5
7
A
MET
593
A
MET
74
HELX_P
A
ASN
598
A
ASN
79
1
6
6
A
ASP
600
A
ASP
81
HELX_P
A
THR
609
A
THR
90
1
7
10
A
GLU
660
A
GLU
141
HELX_P
A
ARG
666
A
ARG
147
1
8
7
A
VAL
686
A
VAL
167
HELX_P
A
TYR
696
A
TYR
177
1
9
11
A
MET
699
A
MET
180
HELX_P
A
GLY
715
A
GLY
196
1
10
17
NEUROPEPTIDE
cAMP binding, cAMP, NEUROPEPTIDE
HCN4_HUMAN
UNP
1
521
Q9Y3Q4
DSSRRQYQEKYKQVEQYMSFHKLPPDTRQRIHDYYEHRYQGKMFDEESILGELSEPLREEIINFNCRKLVASMPLFANAD
PNFVTSMLTKLRFEVFQPGDYIIREGTIGKKMYFIQHGVVSVLTKGNKETKLADGSYFGEICLLTRGRRTASVRADTYCR
LYSLSVDNFNEVLEEYPMMRRAFETVALDRLDRIGKKNSILLHK
521
724
4HBN
521
724
Q9Y3Q4
A
1
2
205
1
expression tag
SER
520
4HBN
A
Q9Y3Q4
UNP
1
1
SER
engineered mutation
ARG
672
4HBN
A
Q9Y3Q4
UNP
672
153
4
4
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
A
ARG
612
A
ARG
93
A
PHE
616
A
PHE
97
A
CYS
679
A
CYS
160
A
SER
685
A
SER
166
A
LYS
631
A
LYS
112
A
HIS
637
A
HIS
118
A
TYR
657
A
TYR
138
A
PHE
658
A
PHE
139
A
TYR
621
A
TYR
102
A
ILE
623
A
ILE
104
A
ARG
672
A
ARG
153
A
ALA
675
A
ALA
156
A
VAL
640
A
VAL
121
A
LEU
643
A
LEU
124
A
GLU
649
A
GLU
130
A
LEU
652
A
LEU
133
BINDING SITE FOR RESIDUE CMP A 801
A
CMP
801
Software
12
BINDING SITE FOR RESIDUE PO4 A 802
A
PO4
802
Software
2
A
VAL
642
A
VAL
123
12
1_555
A
THR
650
A
THR
131
12
1_555
A
PHE
658
A
PHE
139
12
1_555
A
GLY
659
A
GLY
140
12
1_555
A
GLU
660
A
GLU
141
12
1_555
A
ILE
661
A
ILE
142
12
1_555
A
CYS
662
A
CYS
143
12
1_555
A
ARG
669
A
ARG
150
12
1_555
A
THR
670
A
THR
151
12
1_555
A
ARG
710
A
ARG
191
12
1_555
A
ARG
713
A
ARG
194
12
1_555
A
HOH
948
D
HOH
12
1_555
A
SER
568
A
SER
49
2
1_555
A
GLU
572
A
GLU
53
2
1_555
97
I 4 2 2