Summary for KLF6 (NES ID: 162)
Full Name
Krüppel-like factor 6
UniProt Alternative Names
B-cell-derived protein 1
Core promoter element-binding protein
GC-rich sites-binding factor GBF
Proto-oncogene BCD1
Suppressor of tumorigenicity 12 protein
Transcription factor Zf9
Organism
Homo sapiens (Human)
Experimental Evidence for CRM1-mediated Export
Mutations That Affect Nuclear Export
Mutations That Affect CRM1 Binding
Unknown
Functional Export Signals
Secondary Structure of Export Signal
Unknown
Other Residues Important for Export
Unknown
Sequence
Show FASTA Format
>gi|7387592|sp|Q99612.3|KLF6_HUMAN RecName: Full=Krueppel-like factor 6; AltName: Full=B-cell-derived protein 1; AltName: Full=Core promoter element-binding protein; AltName: Full=GC-rich sites-binding factor GBF; AltName: Full=Proto-oncogene BCD1; AltName: Full=Suppressor of tumorigenicity 12 protein; AltName: Full=Transcription factor Zf9
MDVLPMCSIFQELQIVHETGYFSALPSLEEYWQQTCLELERYLQSEPCYVSASEIKFDSQEDLWTKIILA
REKKEESELKISSSPPEDTLISPSFCYNLETNSLNSDVSSESSDSSEELSPTAKFTSDPIGEVLVSSGKL
SSSVTSTPPSSPELSREPSQLWGCVPGELPSPGKVRSGTSGKPGDKGNGDASPDGRRRVHRCHFNGCRKV
YTKSSHLKAHQRTHTGEKPYRCSWEGCEWRFARSDELTRHFRKHTGAKPFKCSHCDRCFSRSDHLALHMK
RHL
Show Domain Info by CDD
Show Secondary Structure by PSIPRED
# PSIPRED HFORMAT (PSIPRED V3.2)
Conf: 988874026898754204666556898135787789876531157873102345778860
Pred: CCCCCCCHHHHHHHHHCCCCCCCCCCCCHHHHHHHHHHHHHHCCCCCCCCCCCCCCCCCC
AA: MDVLPMCSIFQELQIVHETGYFSALPSLEEYWQQTCLELERYLQSEPCYVSASEIKFDSQ
10 20 30 40 50 60
Conf: 346778764101111012678999999988897435666656778899889999989998
Pred: HHHHHHHHHHCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
AA: EDLWTKIILAREKKEESELKISSSPPEDTLISPSFCYNLETNSLNSDVSSESSDSSEELS
70 80 90 100 110 120
Conf: 998888999863323578888887899999976877987665679987899975467999
Pred: CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
AA: PTAKFTSDPIGEVLVSSGKLSSSVTSTPPSSPELSREPSQLWGCVPGELPSPGKVRSGTS
130 140 150 160 170 180
Conf: 999999999999988851000125886512322201210001336999700368996400
Pred: CCCCCCCCCCCCCCCCCCEECCCCCCCCCEEECCCHHHHCCCCCCCCCCCCCCCCCCCCE
AA: GKPGDKGNGDASPDGRRRVHRCHFNGCRKVYTKSSHLKAHQRTHTGEKPYRCSWEGCEWR
190 200 210 220 230 240
Conf: 1020688887754229998458988653343113453210279
Pred: EECHHHHHHHHHHHCCCCCCCCCCCCCCCCCCHHHHHHHHCCC
AA: FARSDELTRHFRKHTGAKPFKCSHCDRCFSRSDHLALHMKRHL
250 260 270 280
Show Conservation Score by AL2CO
1 M -1.000 *
2 D -1.000 *
3 V -1.000 *
4 L -1.000 *
5 P -1.000 *
6 M -1.000 *
7 C -1.000 *
8 S -1.000 *
9 I -1.000 *
10 F -1.000 *
11 Q -1.000 *
12 E -1.000 *
13 L -1.000 *
14 Q -1.000 *
15 I -1.000 *
16 V -1.000 *
17 H -1.000 *
18 E -1.000 *
19 T -1.000 *
20 G -1.000 *
21 Y -1.000 *
22 F -1.000 *
23 S -1.000 *
24 A -1.000 *
25 L -1.000 *
26 P -1.000 *
27 S -1.000 *
28 L -1.000 *
29 E -1.000 *
30 E -1.000 *
31 Y -1.000 *
32 W -1.000 *
33 Q -1.000 *
34 Q -1.000 *
35 T -1.000 *
36 C -1.000 *
37 L -1.000 *
38 E -1.000 *
39 L -1.000 *
40 E -1.000 *
41 R -1.000 *
42 Y -1.000 *
43 L -1.000 *
44 Q -1.000 *
45 S -1.000 *
46 E -1.000 *
47 P -1.000 *
48 C -1.000 *
49 Y -1.000 *
50 V -1.000 *
51 S -1.000 *
52 A -1.000 *
53 S -1.000 *
54 E -1.000 *
55 I -1.000 *
56 K -1.000 *
57 F -1.000 *
58 D -1.000 *
59 S -1.000 *
60 Q -1.000 *
61 E -1.000 *
62 D -1.000 *
63 L -1.000 *
64 W -1.000 *
65 T -0.556
66 K -0.494
67 I -0.523
68 I -0.564
69 L -0.471
70 A -0.542
71 R -0.635
72 E -0.463
73 K -0.614
74 K -0.459
75 E -0.506
76 E -0.541
77 S -0.581
78 E -0.575
79 L -0.575
80 K -0.592
81 I -0.666
82 S -0.618
83 S -0.585
84 S -0.200
85 P -0.474
86 P -0.406
87 E -0.608
88 D -0.463
89 T -0.576
90 L -0.498
91 I -0.617
92 S -0.576
93 P -0.506
94 S -0.582
95 F -0.700
96 C -0.680
97 Y -0.579
98 N -0.500
99 L -0.613
100 E -0.448
101 T -0.661
102 N -0.650
103 S -0.580
104 L -0.677
105 N -0.532
106 S -0.640
107 D -0.632
108 V -0.589
109 S -0.534
110 S -0.665
111 E -0.611
112 S -0.669
113 S -0.687
114 D -0.546
115 S -0.502
116 S -0.617
117 E -0.463
118 E -0.631
119 L -0.710
120 S -0.527
121 P -0.596
122 T -0.622
123 A -0.530
124 K -0.636
125 F -0.617
126 T -0.576
127 S -0.645
128 D -0.616
129 P -0.582
130 I -0.654
131 G -0.624
132 E -0.676
133 V -0.604
134 L -0.686
135 V -0.703
136 S -0.685
137 S -0.743
138 G -0.635
139 K -0.640
140 L -0.584
141 S -0.664
142 S -0.665
143 S -0.583
144 V -0.601
145 T -0.565
146 S -0.653
147 T -0.663
148 P -0.623
149 P -0.583
150 S -0.530
151 S -0.672
152 P -0.694
153 E -0.678
154 L -0.726
155 S -0.605
156 R -0.740
157 E -0.660
158 P -0.636
159 S -0.686
160 Q -0.690
161 L -0.702
162 W -0.686
163 G -0.625
164 C -0.706
165 V -0.703
166 P -0.632
167 G -0.695
168 E -0.690
169 L -0.711
170 P -0.623
171 S -0.681
172 P -0.641
173 G -0.609
174 K -0.595
175 V -0.471
176 R -0.638
177 S -0.630
178 G -0.630
179 T -0.651
180 S -0.694
181 G -0.740
182 K -0.732
183 P -0.691
184 G -0.565
185 D -0.711
186 K -0.525
187 G -0.680
188 N -0.718
189 G -0.722
190 D -0.484
191 A -0.534
192 S -0.647
193 P -0.436
194 D -0.544
195 G -0.456
196 R -0.074
197 R 0.085
198 R 0.279
199 V -0.134
200 H 1.510
201 R -0.368
202 C 1.233
203 H -0.346
204 F 0.178
205 N -0.118
206 G 0.235
207 C 3.032
208 R -0.197
209 K 1.815
210 V 0.104
211 Y 1.966
212 T 0.275
213 K 0.334
214 S 0.231
215 S 0.718
216 H 0.147
217 L 2.621
218 K -0.064
219 A 0.053
220 H 3.032
221 Q -0.113
222 R 1.036
223 T 0.571
224 H 2.623
225 T 0.931
226 G 1.559
227 E 0.662
228 K 1.214
229 P 1.011
230 Y 1.619
231 R -0.449
232 C 2.570
233 S 0.370
234 W 0.937
235 E -0.312
236 G -0.030
237 C 3.032
238 E 0.080
239 W 1.413
240 R 0.570
241 F 2.100
242 A 0.259
243 R 0.168
244 S 0.504
245 D 0.596
246 E 0.190
247 L 3.032
248 T 0.090
249 R 0.243
250 H 3.032
251 F -0.128
252 R 1.611
253 K 0.602
254 H 3.032
255 T 1.549
256 G 1.175
257 A 0.143
258 K 1.261
259 P 1.090
260 F 2.158
261 K -0.285
262 C 2.587
263 S -0.525
264 H -0.297
265 C 2.592
266 D 0.042
267 R 1.438
268 C 0.277
269 F 2.595
270 S 0.150
271 R 0.635
272 S 0.737
273 D 0.875
274 H -0.144
275 L 1.860
276 A -0.018
277 L 0.694
278 H 2.592
279 M 0.055
280 K 1.401
281 R 0.634
282 H 3.032
283 L -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 - 162.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
MDVLPMCSIF QELQIVHETG YFSALPSLEE YWQQTCLELE RYLQSEPCYV SASEIKFDSQ
70 80 90 100 110 120
EDLWTKIILA REKKEESELK ISSSPPEDTL ISPSFCYNLE TNSLNSDVSS ESSDSSEELS
130 140 150 160 170 180
PTAKFTSDPI GEVLVSSGKL SSSVTSTPPS SPELSREPSQ LWGCVPGELP SPGKVRSGTS
190 200 210 220 230 240
GKPGDKGNGD ASPDGRRRVH RCHFNGCRKV YTKSSHLKAH QRTHTGEKPY RCSWEGCEWR
250 260 270 280
FARSDELTRH FRKHTGAKPF KCSHCDRCFS RSDHLALHMK RHL
3D Structures in PDB
Not Available
Comments
Krüppel-like factor 6 (KFL6) is a tumor suppressor that binds DNA with three zinc finger (ZF) domains at its C-terminus. Rodriguez et al. narrowed the NLS to the ZF (202-256) and defined a CRM1-dependent NES at its very N-terminal. KLF6's splice variant-1, a naturally occurring inactivating mutant of KLF6 as defined and discussed in the literature, also contains the same NES. While KLF6 is associated with tumor suppressor function, KLF6-SV1 is known for its oncogenic/anti-apoptotic
function.
KLF6 has a noticeable short half-life and its turnover is dependent upon the NLS and NES, as disruptions in either of them altered protein stability. The KLF6 zinc-fingers, NLS, as well as NES contribute to its decreased protein stability. KLF6-SV1 lacks the NLS but is found in the nucleus, possible through binding KLF6 or other actively shuttling proteins.
KLF6 mutations, particularly in the NES and NLS domains, have been identified in various cancers. Furthermore, deregulation of KLF6 and increased production of KLF6-SV1 have been associated with increased tumor stage, chemoresistance, and poor prognosis.
References
[1]. "Nucleo-cytoplasmic localization domains regulate Krüppel-like factor 6 (KLF6) protein stability and tumor suppressor function."
Rodriguez E, Aburjania N, Priedigkeit NM, DiFeo A, Martignetti JA. (2010)
PLoS One,
5:e12639
PubMedUser Input
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