Summary for CCTα (NES ID: 238)
Full Name
Choline-phosphate cytidylyltransferase A
UniProt Alternative Names
CTP:phosphocholine cytidylyltransferase A (CCT A)
Phosphorylcholine transferase A
Organism
Homo sapiens (Human)
Experimental Evidence for CRM1-mediated Export
Mutations That Affect Nuclear Export
Unknown
Mutations That Affect CRM1 Binding
Unknown
Functional Export Signals
Secondary Structure of Export Signal
Unknown (NES not included in PDB)
Other Residues Important for Export
Unknown
Sequence
Show FASTA Format
>gi|166214967|sp|P49585.2|PCY1A_HUMAN RecName: Full=Choline-phosphate cytidylyltransferase A; AltName: Full=CCT-alpha; AltName: Full=CTP:phosphocholine cytidylyltransferase A; Short=CCT A; Short=CT A; AltName: Full=Phosphorylcholine transferase A
MDAQCSAKVNARKRRKEAPGPNGATEEDGVPSKVQRCAVGLRQPAPFSDEIEVDFSKPYVRVTMEEASRG
TPCERPVRVYADGIFDLFHSGHARALMQAKNLFPNTYLIVGVCSDELTHNFKGFTVMNENERYDAVQHCR
YVDEVVRNAPWTLTPEFLAEHRIDFVAHDDIPYSSAGSDDVYKHIKEAGMFAPTQRTEGISTSDIITRIV
RDYDVYARRNLQRGYTAKELNVSFINEKKYHLQERVDKVKKKVKDVEEKSKEFVQKVEEKSIDLIQKWEE
KSREFIGSFLEMFGPEGALKHMLKEGKGRMLQAISPKQSPSSSPTRERSPSPSFRWPFSGKTSPPCSPAN
LSRHKAAAYDISEDEED
Show Domain Info by CDD
Show Secondary Structure by PSIPRED
# PSIPRED HFORMAT (PSIPRED V3.2)
Conf: 974333340132210269999999877899864444555555899999700001369602
Pred: CCCCCCCCCHHHHHCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCHHHCCCCCCH
AA: MDAQCSAKVNARKRRKEAPGPNGATEEDGVPSKVQRCAVGLRQPAPFSDEIEVDFSKPYV
10 20 30 40 50 60
Conf: 455987524999999818872651231034589999999751999399992438045441
Pred: HHHHHHHHCCCCCCCCEEEEECCCCCCCCHHHHHHHHHHHHHCCCCEEEEEECCCHHHHH
AA: RVTMEEASRGTPCERPVRVYADGIFDLFHSGHARALMQAKNLFPNTYLIVGVCSDELTHN
70 80 90 100 110 120
Conf: 169988893788988512763121135999424998997314542640898767999822
Pred: CCCCCCCCHHHHHHHHHCCCCCCCCCCCCCCCCCHHHHHHHCCCEEECCCCCCCCCCCCH
AA: FKGFTVMNENERYDAVQHCRYVDEVVRNAPWTLTPEFLAEHRIDFVAHDDIPYSSAGSDD
130 140 150 160 170 180
Conf: 109899809864333367754125478861170899986520689800000456655578
Pred: HHHHHHHHCCCCCCCCCCCCCHHHHHHHHHCCCHHHHHHHHCCCCCCCHHHHHHHHHHHH
AA: VYKHIKEAGMFAPTQRTEGISTSDIITRIVRDYDVYARRNLQRGYTAKELNVSFINEKKY
190 200 210 220 230 240
Conf: 988978999764323444456789999998899999999954988997885208871245
Pred: HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCCCHHH
AA: HLQERVDKVKKKVKDVEEKSKEFVQKVEEKSIDLIQKWEEKSREFIGSFLEMFGPEGALK
250 260 270 280 290 300
Conf: 666632100000248899999999998999999899999999999999731123346899
Pred: HHHHHHHHHCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
AA: HMLKEGKGRMLQAISPKQSPSSSPTRERSPSPSFRWPFSGKTSPPCSPANLSRHKAAAYD
310 320 330 340 350 360
Conf: 9988779
Pred: CCCCCCC
AA: ISEDEED
Show Conservation Score by AL2CO
1 M -1.000 *
2 D -1.000 *
3 A -1.000 *
4 Q -1.000 *
5 C -1.000 *
6 S -1.000 *
7 A -1.000 *
8 K -1.000 *
9 V -1.000 *
10 N -1.000 *
11 A -1.000 *
12 R -1.000 *
13 K -1.000 *
14 R -1.000 *
15 R -1.000 *
16 K -1.000 *
17 E -1.000 *
18 A -1.000 *
19 P -1.000 *
20 G -1.000 *
21 P -1.000 *
22 N -1.000 *
23 G -1.000 *
24 A -1.000 *
25 T -1.000 *
26 E -1.000 *
27 E -1.000 *
28 D -1.000 *
29 G -1.000 *
30 V -1.000 *
31 P -1.000 *
32 S -1.000 *
33 K -1.000 *
34 V -1.000 *
35 Q -1.000 *
36 R -1.000 *
37 C -1.000 *
38 A -1.000 *
39 V -1.000 *
40 G -1.000 *
41 L -0.978
42 R -0.866
43 Q -0.867
44 P -0.516
45 A -0.424
46 P -0.732
47 F -0.909
48 S -0.884
49 D -0.670
50 E -0.899
51 I -0.996
52 E -1.030
53 V -1.011
54 D -0.687
55 F -1.050
56 S -0.897
57 K -1.175
58 P -0.856
59 Y -0.837
60 V -1.056
61 R -0.592
62 V -0.827
63 T -0.910
64 M -0.953
65 E -0.726
66 E -0.826
67 A -0.899
68 S -0.998
69 R -0.802
70 G -0.722
71 T -0.772
72 P -0.504
73 C -0.935
74 E -0.807
75 R -0.239
76 P -0.597
77 V 0.096
78 R 1.265
79 V 1.764
80 Y 1.437
81 A 0.521
82 D 0.362
83 G 4.198
84 I 0.742
85 F 2.479
86 D 4.198
87 L 1.337
88 F 0.649
89 H 2.506
90 S -0.451
91 G 3.105
92 H 3.678
93 A 0.291
94 R -0.069
95 A -0.038
96 L 2.057
97 M 0.483
98 Q -0.095
99 A 1.212
100 K 0.494
101 N -0.474
102 L -0.501
103 F -0.402
104 P -0.517
105 N -0.139
106 T -0.355
107 Y -0.225
108 L 1.878
109 I 1.094
110 V 1.726
111 G 2.825
112 V 1.528
113 C -0.161
114 S 0.354
115 D 2.079
116 E -0.715
117 L -0.253
118 T 0.926
119 H -0.858
120 N -0.622
121 F -0.571
122 K 1.870
123 G -0.110
124 F -0.472
125 T 1.026
126 V 1.566
127 M 0.516
128 N 0.218
129 E -0.263
130 N -0.862
131 E 1.205
132 R 4.168
133 Y 0.149
134 D -0.374
135 A -0.163
136 V 1.383
137 Q -0.366
138 H 0.610
139 C 0.713
140 R 0.733
141 Y 0.719
142 V 1.461
143 D 1.504
144 E 0.018
145 V 1.275
146 V 1.215
147 R -0.676
148 N -0.020
149 A 0.719
150 P 1.570
151 W 0.204
152 T -0.677
153 L 0.188
154 T 0.084
155 P -0.675
156 E -0.050
157 F 0.003
158 L 0.922
159 A -0.390
160 E -0.702
161 H -0.332
162 R -0.520
163 I 0.742
164 D -0.279
165 F -0.103
166 V 0.913
167 A 0.503
168 H -0.167
169 D 1.311
170 D -0.425
171 I -0.400
172 P -0.657
173 Y -0.639
174 S -1.005
175 S -0.800
176 A -0.716
177 G -0.440
178 S -0.927
179 D -0.787
180 D 0.521
181 V -0.330
182 Y 0.729
183 K -0.598
184 H -0.984
185 I -0.297
186 K 1.164
187 E -0.167
188 A -0.584
189 G 0.435
190 M 0.073
191 F 0.661
192 A -0.562
193 P -0.446
194 T 0.440
195 Q -0.457
196 R -0.161
197 T -0.234
198 E -0.492
199 G -0.175
200 I 0.635
201 S 1.094
202 T 1.616
203 S 0.090
204 D -0.295
205 I 1.222
206 I 1.336
207 T -0.844
208 R 1.536
209 I 1.785
210 V 0.774
211 R -0.280
212 D -0.429
213 Y -0.141
214 D -0.482
215 V -0.779
216 Y 0.562
217 A -0.453
218 R -0.869
219 R 0.522
220 N 0.065
221 L -0.531
222 Q -0.560
223 R 0.763
224 G -0.225
225 Y -0.765
226 T -0.553
227 A -0.236
228 K -0.259
229 E -0.071
230 L -0.142
231 N -0.385
232 V -0.514
233 S -0.475
234 F -0.492
235 I -0.387
236 N -0.777
237 E -0.302
238 K -0.546
239 K -0.498
240 Y -0.738
241 H -0.622
242 L -0.419
243 Q -0.332
244 E -0.620
245 R -0.718
246 V -0.446
247 D -0.627
248 K -0.323
249 V -0.336
250 K -0.421
251 K -0.434
252 K -0.558
253 V -0.104
254 K -0.644
255 D -0.408
256 V -1.000 *
257 E -1.000 *
258 E -1.000 *
259 K -0.374
260 S -1.000 *
261 K -0.820
262 E -0.500
263 F -0.554
264 V -0.764
265 Q -0.844
266 K -0.899
267 V -0.282
268 E -0.662
269 E -0.495
270 K -0.694
271 S -0.817
272 I -1.004
273 D -0.589
274 L -0.861
275 I -0.633
276 Q -0.914
277 K -0.849
278 W 0.395
279 E -0.600
280 E -0.638
281 K -1.000 *
282 S -1.000 *
283 R -1.000 *
284 E -1.000 *
285 F -1.000 *
286 I -1.000 *
287 G -1.000 *
288 S -1.000 *
289 F -1.000 *
290 L -1.000 *
291 E -1.000 *
292 M -1.000 *
293 F -1.000 *
294 G -1.000 *
295 P -1.000 *
296 E -1.000 *
297 G -1.000 *
298 A -1.000 *
299 L -1.000 *
300 K -1.000 *
301 H -1.000 *
302 M -1.000 *
303 L -1.000 *
304 K -1.000 *
305 E -1.000 *
306 G -1.000 *
307 K -1.000 *
308 G -1.000 *
309 R -1.000 *
310 M -1.000 *
311 L -1.000 *
312 Q -1.000 *
313 A -1.000 *
314 I -1.000 *
315 S -1.000 *
316 P -1.000 *
317 K -1.000 *
318 Q -1.000 *
319 S -1.000 *
320 P -1.000 *
321 S -1.000 *
322 S -1.000 *
323 S -1.000 *
324 P -1.000 *
325 T -1.000 *
326 R -1.000 *
327 E -1.000 *
328 R -1.000 *
329 S -1.000 *
330 P -1.000 *
331 S -1.000 *
332 P -1.000 *
333 S -1.000 *
334 F -1.000 *
335 R -1.000 *
336 W -1.000 *
337 P -1.000 *
338 F -1.000 *
339 S -1.000 *
340 G -1.000 *
341 K -1.000 *
342 T -1.000 *
343 S -1.000 *
344 P -1.000 *
345 P -1.000 *
346 C -1.000 *
347 S -1.000 *
348 P -1.000 *
349 A -1.000 *
350 N -1.000 *
351 L -1.000 *
352 S -1.000 *
353 R -1.000 *
354 H -1.000 *
355 K -1.000 *
356 A -1.000 *
357 A -1.000 *
358 A -1.000 *
359 Y -1.000 *
360 D -1.000 *
361 I -1.000 *
362 S -1.000 *
363 E -1.000 *
364 D -1.000 *
365 E -1.000 *
366 E -1.000 *
367 D -1.000 *
* gap fraction no less than 0.50; conservation set to M-S
M: mean; S: standard deviation
al2co - The parameters are:
Input alignment file - 238.paln
Output conservation - STDOUT
Weighting scheme - independent-count based
Conservation calculation method - entropy-based
Window size - 1
Conservation normalized to zero mean and unity variance
Gap fraction to suppress calculation - 0.50
10 20 30 40 50 60
MDAQCSAKVN ARKRRKEAPG PNGATEEDGV PSKVQRCAVG LRQPAPFSDE IEVDFSKPYV
70 80 90 100 110 120
RVTMEEASRG TPCERPVRVY ADGIFDLFHS GHARALMQAK NLFPNTYLIV GVCSDELTHN
130 140 150 160 170 180
FKGFTVMNEN ERYDAVQHCR YVDEVVRNAP WTLTPEFLAE HRIDFVAHDD IPYSSAGSDD
190 200 210 220 230 240
VYKHIKEAGM FAPTQRTEGI STSDIITRIV RDYDVYARRN LQRGYTAKEL NVSFINEKKY
250 260 270 280 290 300
HLQERVDKVK KKVKDVEEKS KEFVQKVEEK SIDLIQKWEE KSREFIGSFL EMFGPEGALK
310 320 330 340 350 360
HMLKEGKGRM LQAISPKQSP SSSPTRERSP SPSFRWPFSG KTSPPCSPAN LSRHKAAAYD
ISEDEED
3D Structures in PDB
3HL4 (X-Ray,2.20 Å resolution)
Comments
CCTα is an enzyme responsible for generation of cell membranes, pulmonary surfactant, lipoproteins, bile, etc. CCTα is distributed with the cytoplasm and nucleus in ling epithelia. The inactive, soluble, cytoplasmic form of CCTα becomes ative after translocation to the endoplasmic reticulum or nuclear membrane. Agassandian et al. showed that CCTα is a substrate of calmodulin kinase I (CaMKI), which docks within the membrane-binding domain of CCTα (aa 290-299). Agassandian et al. also showed that the same sequence is a NES, capable of targeting CFP to the cytoplasm in a LMB sensitive manner. The binding of CCTα to CRM1 is direct and in competition with CaMKI.
References
[1]. "Calcium-calmodulin kinase I cooperatively regulates nucleocytoplasmic shuttling of CCTalpha by accessing a nuclear export signal."
Agassandian M, Chen BB, Pulijala R, Kaercher L, Glasser JR, Mallampalli RK (2012)
Mol Biol Cell,
23:2755-69
PubMedUser Input
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