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1                                              UBF bound with low affinity to nucleosome cores formed w
2                                              UBF could be stripped from ternary complexes with compet
3                                              UBF function in enhancement differs from that at the pro
4                                              UBF is a DNA binding protein with multiple HMG domains t
5                                              UBF is an HMG box-containing factor that binds to the rD
6                                              UBF is required for enhancer function.
7                                              UBF itself does not bind stably to rDNA but rapidly asso
8                                              UBF mRNA levels began to increase within 3-6 h of the in
9                                              UBF mutations at K232/254A and K232/254R restored rDNA t
10                                              UBF proteins (known to interact with both IRS-1 and beta
11                                              UBF showed marked significant differences (p<0.05) in co
12                                              UBF trimethylation leads to nucleolar chromatin condensa
13 nt assays show that while the formation of a UBF-SL1 complex can partially relieve the inhibition of
14 ion of transcription, only the assembly of a UBF-SL1-Pol I initiation complex on the rDNA promoter co
15 ardiomyocytes indicated that the accumulated UBF protein was phosphorylated and, thus, in the active
16 eolin but not the transcriptional activator, UBF.
17                 However, the formation of an UBF/Rb complex does block the interaction of UBF with SL
18 e have examined the hypothesis that SL-1 and UBF interact.
19 nsitive (phosphorylation of eEF2, ERK1/2 and UBF; gene expression of the myostatin target Mighty as w
20 a was given (1 microg kg(-1) I.V. bolus) and UBF was recorded for an additional hour.
21 ies demonstrated that a subset of CENP-C and UBF/NOR-90 is colocalized at nucleoli of interphase HeLa
22 pUL31, CMV fails to reorganize nucleolin and UBF and exhibits a replication defect at a low multiplic
23    This increased interaction between Rb and UBF correlated with the reduced rate of rDNA transcripti
24 nstrated that the interaction between Rb and UBF does not inhibit the binding of UBF to DNA.
25 r binding, RNA polymerase I recruitment, and UBF stabilization and that SL1-promoter complex formatio
26 p53 prevents the interaction between SL1 and UBF.
27 mmunofluorescence labeling shows treacle and UBF colocalize to specific nucleolar organizer regions a
28 nalysis shows the association of treacle and UBF with chromatin.
29  between serotonergic antidepressant use and UBF.
30 man cells coimmunoprecipitated with the anti-UBF antibody after mixing, indicating that the UBF-SL-1
31 reatment of N1S1 cell extracts with the anti-UBF antibody depleted the extracts of SL-1 activity but
32 tment of UBF-depleted extracts with the anti-UBF antibody depleted the extracts of SL-1 activity only
33  regions of the nucleolus where neither B23, UBF, or fibrillarin were concentrated.
34 ation by stabilizing the association between UBF and SL1.
35 antly, CK2 regulates the interaction between UBF and SL1 by counteracting the inhibitory effect of HM
36 n, we have identified an interaction between UBF and TAF1, a factor involved in the transcription of
37 ot solely mediated by an interaction between UBF and TATA-binding protein, which is also a component
38        No associations were observed between UBF and three assessments of maternal prenatal depressio
39 ng that nucleolar sequestration of SmgGDS by UBF stabilizes SmgGDS protein.
40 ding transcription factor (UBTF, also called UBF) is thought to function exclusively in RNA polymeras
41 revious studies have shown that the cellular UBF content increased in adrenergic- and contraction-ind
42                                     The CHP1-UBF interaction is restricted to the nucleus and inhibit
43 ecreased ipsilateral, but not contralateral, UBF vasodilatory responses to exogenous E2beta by approx
44 BF, intraarterial L-NAME partially decreased UBF dose dependently (r = 0.73, n = 46, P < 0.001) while
45 sychotics also was associated with decreased UBF.
46 moreover, incubation of the dephosphorylated UBF with nuclear extracts from exponentially growing cel
47 pproximately 60 bp of additional linker DNA, UBF bound with high affinity similar to its binding to n
48 is effect could be reversed by knocking down UBF or overexpressing RNASE1, which removes RNA-DNA hybr
49  ICI 182 780 infusion inhibited the elevated UBF seen in follicular phase and late pregnant ewes in a
50 ecombinant phosphorylated UBF and endogenous UBF from exponentially growing NIH 3T3 cells but not by
51                 Downregulation of endogenous UBF expression using an RNA interference approach reduce
52 ription, Rib1, can interact with an enhancer-UBF complex.
53 ription requires the upstream binding factor UBF and the selectivity factor SL1 to assemble coordinat
54 ls we identified the upstream binding factor UBF, a DNA-binding protein and component of the RNA poly
55 lymerase I activator upstream binding factor UBF-1 at interphase nucleoli, and this interaction is ep
56 the RNA polymerase I upstream binding factor UBF.
57 s complex is comprised of the HMG box factor UBF and the TBP-containing complex Rib1.
58     We found that pol I transcription factor UBF interacts with pre-rRNA processing factors as analyz
59 nts binding of the rRNA transcription factor UBF to regulatory sequences of the rRNA gene.
60  We found that the rDNA transcription factor UBF was acetylated in vivo.
61 cts with the basal rRNA transcription factor UBF.
62 ssociated with the rDNA transcription factor UBF.
63 malian RNA polymerase I transcription factor UBF.
64 ere it binds to the upstream binding factor (UBF) 1, a regulator of RNA polymerase I activity.
65 hich interacts with upstream binding factor (UBF) and affects transcription of the ribosomal DNA gene
66 ans-acting factors, upstream binding factor (UBF) and SL-1.
67  auxiliary factors, upstream binding factor (UBF) and SL1.
68 ion induces NPM and upstream-binding factor (UBF) degradation, which is independent of caspases.
69 rein, we found that upstream binding factor (UBF) interacts with ESET, a histone H3K9 methyltransfera
70                     Upstream binding factor (UBF) is a vertebrate RNA polymerase I transcription fact
71  disruption by anti-upstream binding factor (UBF) microinjection (in the absence of DNA damage) also
72 roup box-containing upstream binding factor (UBF) plays any role in this process.
73 ctly interacts with upstream binding factor (UBF) through its PHD1 domain and suppresses ribosomal RN
74 quent activation of upstream binding factor (UBF), a Pol I DNA binding transcription factor.
75 GF-2 interacts with upstream binding factor (UBF), an architectural transcription factor essential fo
76     The function of upstream binding factor (UBF), an essential component of the RNA polymerase (pol)
77 RNA polymerase I or upstream binding factor (UBF), an rDNA transcription factor.
78 ence that contained upstream binding factor (UBF), EPB3 genes, SHCL1, ASB-4-like sequence, and acidic
79 of its coactivator, upstream binding factor (UBF), increased in the atrophied heart whereas protein l
80 sphorylation of the upstream binding factor (UBF).
81 , and the activator upstream binding factor (UBF).
82 gh concentration of upstream binding factor (UBF).
83 ranscription factor upstream binding factor (UBF).
84  of Pol I activity, upstream binding factor (UBF).
85 ranscription factor upstream binding factor (UBF).
86 r SL1 and activator upstream binding factor (UBF).
87 by interacting with upstream binding factor (UBF).
88 the HMG box factor [Upstream binding factor (UBF)] and SL1 at the rRNA gene promoter is necessary to
89 d the upstream binding transcription factor (UBF), which interacts with the upstream control element
90 rRNA transcription (upstream-binding factor [UBF]), processing (nucleolin, fibrillarin, and RNase MRP
91 ion of a ribosomal DNA transcription factor, UBF, correlated with increased rates of ribosome biogene
92 ion domain of the rDNA transcription factor, UBF, which significantly reduced its ability to associat
93 t of the ribosomal DNA transcription factor, UBF.
94                         Unripe banana flour (UBF) obtained from organic acid pretreatment of pulp fro
95 n dramatically increases uterine blood flow (UBF) in ovariectomized (Ovx) ewes.
96 ects on the uterine vasculature, blood flow (UBF) increasing > or = 10-fold.
97 triction in uterine or umbilical blood flow (UBF).
98 ogen levels and rises in uterine blood flow (UBF).
99 omen underwent an ultrasound examination for UBF at approximately 25 weeks gestation.
100                          This novel role for UBF in promoter escape would allow control of rRNA synth
101                                      Fourth, UBF, a positive regulator of rRNA transcription, binds t
102 aked DNA, forming a ternary DNA-core histone-UBF complex.
103                                     However, UBF recruits the pol I-specific, TATA box-binding protei
104  NIH 3T3 cells but not by hypophosphorylated UBF from cells treated with rapamycin or dephosphorylate
105 ption reconstituted with purified RNA Pol I, UBF, and the TBP/TAF complex SL1.
106 pleted the extracts of SL-1 activity only if UBF was added to the extract prior to the immunodepletio
107 rexpressed beta-catenin, further implicating UBF as a transcriptional enhancer of the beta-catenin pa
108 kg) caused parallel increases (P < 0.001) in UBF (15+/-3 to 130+/-16 ml/min) and uterine cGMP secreti
109                       Species differences in UBF are utilized to demonstrate that enhancers do not ac
110 adiol-17beta (E2beta)-mediated elevations in UBF.
111 t, c.628G>A in UBTF, encoding p.Glu210Lys in UBF, which occurred de novo in all cases.
112                              The increase in UBF phosphorylation occurred within 3 to 6 hours after e
113  T antigen expression induces an increase in UBF phosphorylation.
114          Acute estrogen-induced increases in UBF are associated with NO-dependent increases in cGMP s
115 rial L-NAME partially inhibited increases in UBF dose-dependently (r = 0.66, n = 18, P < 0.003) while
116 e that exogenous E2beta-induced increases in UBF in the Ovx animal and endogenous E2beta-mediated ele
117  cGMP modulate estrogen-induced increases in UBF, and if cyclooxygenase inhibition modifies E2beta re
118            After E2beta-induced increases in UBF, intraarterial L-NAME partially decreased UBF dose d
119 ression and anxiety-associated reductions in UBF may not be a pathway by which risk is conferred duri
120 xposure may be associated with reductions in UBF.
121 echanism is responsible for in vivo rises in UBF in physiological states of high oestrogen.
122                 When peri-ovulatory rises in UBF reached near peak levels, ICI 182 780 (1 or 2 microg
123           In pregnant ewes, E2beta increased UBF and venous cGMP (9.1+/-0.96 to 13.2+/-0.96 pmol/ml,
124 on to UBF, manifesting by markedly increased UBF binding to the rDNA promoter and to the 5'- external
125 over, we showed that large T antigen-induced UBF phosphorylation promotes the formation of a stable U
126 , overexpression of recombinant Rb inhibited UBF-dependent activation of transcription from a cotrans
127 ymerase I (rDNA transcription) by inhibiting UBF-mediated transcription.
128                               To investigate UBF's likely role as an architectural protein of rRNA ge
129 recipitation of [32P] orthophosphate-labeled UBF from hypertrophying neonatal cardiomyocytes suggeste
130 precipitation of [32P]orthophosphate-labeled UBF from hypertrophying, neonatal cardiomyocytes indicat
131 very strong positive correlation for Mabonde UBF in citric and lactic acid pretreatment (r = 0.999, p
132                       Lastly, like mammalian UBF, Hmo1 associates at many locations throughout the rR
133  identify a potential role for the mammalian UBF splice variant, UBF2, in enhancer function.
134 east UAF and the previously studied metazoan UBF are discussed.
135 basal cGMP secretion 66% (P = 0.02), but not UBF.
136 t of UBF completely abolished the ability of UBF to interact with SL1; moreover, incubation of the de
137 curate Pol I transcription in the absence of UBF and can interact with the rDNA promoter independentl
138 etention of CHP1 attenuates the abundance of UBF in the nucleolus and inhibits RNA synthesis when qui
139 ne acetylation and/or through acetylation of UBF or one of the other components of rDNA transcription
140 al gene transcription through acetylation of UBF, a ribosomal specific transcription factor, as well
141 of UBF, which would increase the activity of UBF.
142                Phosphoamino acid analysis of UBF immunoprecipitated from control and treated cardiomy
143 pothesis in which the dynamic association of UBF with ribosomal DNA clusters recruits the pol I trans
144              We show that the association of UBF with this locus induces large-scale chromatin decond
145 n Rb and UBF does not inhibit the binding of UBF to DNA.
146 a model wherein regulation of the binding of UBF to Rb and, perhaps the cellular content of PAF53, ar
147 IIB activity, suggesting that the binding of UBF to SL-1 is specific and not solely mediated by an in
148               The RNAi-mediated depletion of UBF diminishes nucleolar localization of SmgGDS and prom
149 ficantly reduces the rate of dissociation of UBF from the rDNA promoter.
150  a combination of the dimerization domain of UBF and HMG boxes 1-3 are sufficient to specify its role
151 hoacceptor sites in the C-terminal domain of UBF is important for promoting multiple rounds of Pol I
152 at the carboxy-terminal activation domain of UBF is required for the phosphorylation to occur.
153 ndicated that the carboxy-terminal domain of UBF, which is necessary for transcriptional activation,
154 and endogenous E2beta-mediated elevations of UBF during the follicular phase and late pregnancy are p
155  We hypothesized that elevated expression of UBF was part of the mechanism by which these hypertrophi
156  a prerequisite for the enhancer function of UBF.
157 e Rib1 interaction and enhancer functions of UBF and can conclude that direct interaction with Rib1 i
158 We further show that hyperphosphorylation of UBF occurs as a result of up-regulation of both cyclin D
159 on may be due to the hyperphosphorylation of UBF, which would increase the activity of UBF.
160           To directly evaluate the impact of UBF on chromatin structure, we used an in vivo assay in
161 UBF/Rb complex does block the interaction of UBF with SL-1, as indicated by using the 48 kDa subunit
162 nscription by affecting the protein level of UBF.
163                          While the levels of UBF, Ser388 phosphorylated UBF, and other Pol I-related
164              To investigate the mechanism of UBF-dependent transcriptional activation, we first perfo
165 show that a novel epigenetic modification of UBF is linked to impaired rDNA transcription and nucleol
166  and PMA demonstrates that the modulation of UBF phosphorylation is an additional pathway by which ri
167 hese studies suggest that phosphorylation of UBF and subsequent binding to TBP represent a key regula
168 ce implicating a role for phosphorylation of UBF in the control of growth-induced increases in rRNA t
169 ding assay, we found that phosphorylation of UBF in vivo in response to stimulation with different gr
170 uires S6K1 activation and phosphorylation of UBF.
171 h UBF and is regulated by phosphorylation of UBF.
172 s the physical and antioxidant properties of UBF hitherto absent in composite food formulations.
173                         Since this region of UBF can be phosphorylated, we then tested whether this m
174               The carboxy-terminal region of UBF is necessary for transcription activation and has be
175 ort of the hypothesis that the regulation of UBF is a key component of the increased ribosome biogene
176  has led to the speculation that one role of UBF binding may be to induce chromatin remodeling.
177 teraction assays between SL1 and a series of UBF deletion mutants.
178 flexible with respect to both the species of UBF and the enhancer element employed.
179 he ribosomal DNA promoter and stimulation of UBF-dependent transcription.
180  depended on the C-terminal 'acidic tail' of UBF that was hyperphosphorylated at multiple serine site
181 so demonstrate that the acidic C-terminus of UBF is primarilyresponsible for its observed interaction
182 pecific serines located at the C-terminus of UBF.
183 omoter and does not involve translocation of UBF from enhancer repeats to the promoter.
184            Alkaline phosphatase treatment of UBF completely abolished the ability of UBF to interact
185                                 Treatment of UBF-depleted extracts with the anti-UBF antibody deplete
186  short hairpin RNA reduced trimethylation of UBF and resulted in the restoration of rDNA transcriptio
187                       The smaller version of UBF lacks an internal 111-bp region corresponding to 37
188  concomitant influence of pharmacotherapy on UBF.
189 amined directly the effect of overexpressing UBF on rDNA transcription in neonatal cardiomyocytes in
190  showed increased recovery of phosphorylated UBF from growth-stimulated smooth muscle cells.
191 scued by purified recombinant phosphorylated UBF and endogenous UBF from exponentially growing NIH 3T
192 ile the levels of UBF, Ser388 phosphorylated UBF, and other Pol I-related components (POLR1E, TAF1A,
193              In addition, partially purified UBF from rat cell nuclear extracts and partially purifie
194 ct by recruiting UBF to the promoter, rather UBF performs its own distinct role at the enhancers.
195                                    Recently, UBF was found distributed throughout ribosomal gene repe
196 th rapamycin or dephosphorylated recombinant UBF.
197 We demonstrate that authentic or recombinant UBF and Rb interact directly and this requires a functio
198 rate that enhancers do not act by recruiting UBF to the promoter, rather UBF performs its own distinc
199 le inverse correlation was recorded in M-red UBF for ascorbic and lactic acid pretreatment (r = -0.03
200 zyl (DPPH) differed significantly with M-red UBF recording high TPC (1130.39 +/- 27.26 mg GAE/100g d.
201 use of bupropion was associated with reduced UBF, even after controlling for pregnancy complications.
202 examined the mechanism by which Rb represses UBF-dependent rDNA transcription and determined if other
203 nscription in vitro by 18-kDa FGF-2 requires UBF.
204                              These data show UBF as a newly identified CHP1-binding protein and regul
205 orylation promotes the formation of a stable UBF-SL1 complex.
206 onfirmed that the overexpressed, FLAG-tagged UBF accumulated in the cardiomyocyte nuclei.
207 ished that Tip60 complexes with, and targets UBF for acetylation.
208 rRNA genes organized in chromatin, we tested UBF's ability to bind rRNA gene enhancers assembled into
209  the rate of association of SL1, rather than UBF, with the promoter.
210       Atomic force microscopy confirmed that UBF trimethylated by ESET modulates the plasticity of nu
211 rther biochemical analysis demonstrated that UBF is phosphorylated by a kinase activity that is stron
212                 We further demonstrated that UBF trimethylation at K232/254 by ESET deregulates rDNA
213 and treated cardiomyocytes demonstrated that UBF was phosphorylated exclusively on serine residues.
214                Finally, we demonstrated that UBF-TBP binding depended on the C-terminal 'acidic tail'
215             These data provide evidence that UBF and SL-1 interact.
216           However, we found no evidence that UBF could stimulate recruitment or stabilization of the
217 e-treated UBF provided further evidence that UBF phosphorylation plays a critical role in the regulat
218 ults are consistent with the hypothesis that UBF is an important factor in the regulation of rDNA tra
219    These results support the hypothesis that UBF is an important regulatory factor during the initiat
220         Our findings challenge the idea that UBF activates transcription through recruitment of SL1 a
221                          Our data imply that UBF exerts its stimulatory effect on RNA synthesis, afte
222                      Footprinting shows that UBF outcompetes histone H1 for binding to a nucleosome c
223          We provide evidence to suggest that UBF activates transcription in the transition between in
224                      These data suggest that UBF may act to prevent or reverse the assembly of transc
225 cores, rather than free DNA, suggesting that UBF binding to nucleosome cores does not displace the co
226 d exonuclease III footprinting suggests that UBF and histone H1 interact with DNA on both sides flank
227  functional and stable PICs that include the UBF activator in mammalian cells.
228 g deletions of the 5'-flanking region of the UBF gene revealed the presence of contraction response e
229 ated increased rates of transcription of the UBF gene.
230 tially growing cells was able to restore the UBF-SL1 interaction.
231 F antibody after mixing, indicating that the UBF-SL-1 complex can re-form.
232 sion and anxiety (acute: coincident with the UBF scan; proximal: within 2 weeks of the scan; chronic:
233                                     In this, UBF is fundamentally different from archetypal activator
234 noprecipitation studies using an antibody to UBF demonstrated that TATA-binding protein, a subunit of
235 eraction assays confirmed that TAF1 binds to UBF.
236 l, the variant conferred gain of function to UBF, manifesting by markedly increased UBF binding to th
237    The key activator of Pol I transcription, UBF, has been proposed to act by facilitating recruitmen
238 he inability of alkaline phosphatase treated UBF to efficiently activate transcription can be rescued
239 ranscription assays with phosphatase-treated UBF provided further evidence that UBF phosphorylation p
240                                        Using UBF (284-670) as bait in a yeast two-hybrid screen, we h
241 o transduce signals into the nucleoplasm via UBF hyperphosphorylation leading to rRNA transcription a
242 structure, we used an in vivo assay in which UBF is targeted via a lac repressor fusion protein to a
243  protein, a subunit of SL-1, associates with UBF in the absence of DNA.
244 microscopy showed that TAF1 colocalizes with UBF in Hela cells, and cell fractionation experiments pr
245  found in this location and colocalizes with UBF, the RNA polymerase I transcription factor.
246 but not p107, can be found in a complex with UBF.
247       The ability of SmgGDS to interact with UBF and localize in the nucleolus is diminished by expre
248 ter occurs through protein interactions with UBF and is regulated by phosphorylation of UBF.
249 diated by specific protein interactions with UBF.
250 in the nucleolus, while it co-localizes with UBF as shown by confocal microscopy.
251           Although treacle co-localizes with UBF throughout mitosis, it co-localizes with NOP56 and f

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