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1 PABP also interacts genetically and biochemically with E
2 PABP and eIF4B compete with eIF4A for binding eIFiso4G i
3 PABP binds several translation factors but is primarily
4 PABP cleavage did not affect eIF4GI-PABP interactions, a
5 PABP cleavage may be a common mechanism among certain vi
6 PABP did not significantly increase the rate of the conf
7 PABP has been found to stimulate translation initiation
8 PABP increases the efficiency of translation termination
9 PABP is a modular protein, with four N-terminal RNA-bind
10 PABP is able to bind the poly(A) tail of mRNA, as well a
11 PABP's function in translation termination depends on it
12 PABPs accelerate miRNA-mediated deadenylation, but this
13 ith the SG marker poly(A)-binding protein 1 (PABP-1), whereas inclusions in spinal cord, which contai
15 by the eukaryotic initiation factor (eIF) 4G/PABP/poly(A) tail interaction is achieved instead throug
18 ure that may be responsible for binding to a PABP interacting protein, Paip1, and other shared intera
20 iation time of a cooperatively bound poly(A)/PABP complex as compared with a noncooperatively bound o
21 However, approximately 50% of the poly(A)/PABP complexes exhibit a noncooperative binding conforma
22 t translational initiation, shifted mRNA-A3G-PABP from polysomes into stress granules in a manner tha
23 ntrol animals receiving MCT injection alone (PABP 49.67+/-3.22 mmHg; RV/WH ratio 0.290+/-0.0265; wall
28 there are interaction domains for eIF4A and PABP and we identify, for the first time, the interactio
31 c promoted the interaction between eIF4B and PABP but not the interaction between eIF4B and eIF4A or
41 onal repression of unlocalized grk mRNA, and PABP and Enc facilitate translational activation of the
47 of cross-regulation between the Arabidopsis PABPs that belong to different classes but are simultane
49 with 2-[N-(alpha-picolyl)amino]benzophenone (PABP)] 2 via alkyl halide alkylations and Michael additi
51 ults demonstrate a novel interaction between PABP and several plant proteins sharing a SxLnpxApxFxP m
53 ression, which interferes with poly(A)-bound PABP, precluding PABP-enhanced microRNA-mediated inhibit
56 ection, only 25 to 35% of the total cellular PABP is cleaved; therefore, we hypothesized that the poo
58 Also, 3C(pro) is more efficient in cleaving PABP in ribosome-enriched fractions than 2A(pro) in vitr
72 th explain little of the variation in either PABP association or mRNP organization more generally.
74 we implicate the two Caenorhabditis elegans PABPs (PAB-1 and PAB-2) in miRNA-mediated silencing, and
76 ical and biochemical depletion of endogenous PABP increases the instability of the transcript suggest
84 for a particular modulator of PABP function, PABP-interacting protein 2a (PAIP2A), in the normal term
85 f the nucleophilic glycine equivalent Ni-Gly-PABP [Ni(II) complex of glycine Schiff base with 2-[N-(a
86 rget mRNA deadenylation, and identify GW182, PABP, and deadenylase subunits CAF1 and CCR4 as factors
88 from the reticulocyte lysate with anti-human PABP antibody, the cytosolic factor did not inhibit tran
89 s reveal a novel direct involvement of human PABP in the stabilization of mRNA by protecting the 5' e
91 d domain (SxLnpnApxFxP) in common with human PABP-CT interactors, and with Arabidopsis ERD15 (early-r
94 on structural information concerning type II PABPs and an example of a single RRM domain protein that
95 nd are relevant to understanding how type II PABPs function in mRNA processing and human disease.
97 inding to their overlapping binding sites in PABP by preferentially promoting the interaction between
101 e, zebrafish and Drosophila further involved PABPs in microRNA (miRNA)-mediated silencing, but throug
103 nical translation factor, eIF4G, which lacks PABP- and cap binding complex-interacting domains, is re
105 a commonality matrix, a function of listing PABPs by the number of interacting polyanions and a stri
107 tally determined (HYD) and homology modeled (PABP) protein surfaces revealed a conserved feature that
108 nts include the RNA binding proteins Modulo, PABP, and Smooth, the known localization factor Swallow,
109 to enhance formation of activated eIF4F*mRNA*PABP complexes competent to recruit 43S pre-initiation c
111 e extracts was almost completely in A3G-mRNA-PABP complexes that shifted reversibly between polysomes
112 mmunofluorescence microscopy showed A3G-mRNA-PABP stress granules only partially overlapping with Sta
115 sPABPN1 has a domain architecture of nuclear PABPs (PABPNs) with a single RNA recognition motif (RRM)
116 ells, where PABP is redistributed to nuclei, PABP accumulated in the cytoplasm of HCMV-infected cells
117 F4G protein levels, the overall abundance of PABP mRNA, together with the half-life of the polypeptid
119 2 decapping activity reduced the affinity of PABP for cap association and consequently its ability to
122 as microRNAs, influence the associations of PABP and other core factors, and do so without substanti
125 g poly(A) tails, suggesting that cleavage of PABP and IRES trans-activating factors polypyrimidine tr
126 ), like PV 3C(pro), mediates the cleavage of PABP as part of its strategy to inhibit cellular transla
127 d the substrate determinants for cleavage of PABP by 2A protease (2A(pro)) or 3C protease (3C(pro)).
129 bit cap-poly(A) synergy, partial cleavage of PABP by 3Cpro inhibited translation of endogenous mRNAs
133 o interact with the carboxy terminus (CT) of PABP in yeast two-hybrid and in vitro binding assays.
134 data illustrate the importance of the CTD of PABP in poly(A)-dependent translation in mammalian cells
136 proteases separated the C-terminal domain of PABP that binds translation factors eIF4B and eRF3 from
137 make direct contact with the MLLE domain of PABP, and their competition for the MLLE is thought to r
140 omplexes act independently of the effects of PABP-eIF4G on cap binding to promote small ribosomal sub
142 These results show that the function of PABP in mRNA biogenesis alone could be sufficient to sup
143 nhibited, as shown by immunoprecipitation of PABP followed by quantitation of the poly(A) tail by rev
146 virus infection and that the interaction of PABP with translation initiation factors, ribosomes, or
147 nting LARP4 PAM2w interacts with the MLLE of PABP within the affinity range measured for other PAM2 m
148 unctional role for a particular modulator of PABP function, PABP-interacting protein 2a (PAIP2A), in
149 nd eIF4B interact with distinct molecules of PABP to increase the stability of the interaction betwee
150 RNA-binding protein, as a binding partner of PABP that interacts with PABP in an RNA-independent mann
151 therefore, we hypothesized that the pool of PABP associated with polysomes may be preferentially tar
154 have investigated what cleavage products of PABP are produced in vivo and the substrate determinants
155 n representing the C-terminal end of RRM1 of PABP that overlaps with the N-proximal eIFiso4G interact
156 n domain for eIF4G is present in the RRM1 of PABP, whereas eIFiso4G interacts at two sites, i.e. one
157 nc controls the partner protein selection of PABP such that the interaction with eIF4B is preferred o
163 th the poly(A) tail exacerbate dependency on PABP for deadenylation, more potent miRNA-binding sites
164 icantly, Paip2 accumulation was dependent on PABP accrual, as preventing PABP1 accumulation suppresse
165 agment identified a 3C(pro) cleavage site on PABP between amino acids Q437 and G438, severing the C-t
170 n of 3Cpro in HeLa cells resulted in partial PABP cleavage and similar inhibition of translation.
171 PC1, but not its physiologic binding partner PABP-interacting protein 2 (Paip2), in the nucleus.
172 cumber ( Cucumis sativus L.) proteins, PCI6 (PABP-CT-interacting) and PCI243 were identified based on
173 esting that the diversification of the plant PABP genes has occurred prior to the split of monocots a
176 which enhanced binding of eIF4G and possibly PABP with 100k protein, and simultaneous interaction wit
177 terferes with poly(A)-bound PABP, precluding PABP-enhanced microRNA-mediated inhibition and canonical
178 nt reduction in pulmonary arterial pressure (PABP, 31.67+/-6.03 mmHg, P<0.01), an attenuation of righ
180 hat 3C(pro) plays a major role in processing PABP during virus infection and that the interaction of
181 further indicate that RNA1 and Box1 promote PABP binding, in addition to RNA binding, by the eIF4G1
182 tion with PABP that is sufficient to promote PABP recruitment and necessary for ICP27-mediated activa
183 o by the cytoplasmic poly(A)-binding protein PABP through a direct and specific binding to the 5' end
184 ase (3Cpro) cleaves poly(A)-binding protein (PABP) and removes the C-terminal domain (CTD) that inter
185 f stress granules, poly (A) binding protein (PABP) and TIA-1, appear to be present in the oocyte RNP
186 mains for eIF4E and poly(A)-binding protein (PABP) are thought to enhance formation of activated eIF4
188 hown here that the poly (A)-binding protein (PABP) binds the body of the NF-L transcript and increase
190 studies showed that poly(A)-binding protein (PABP) enhanced the cap binding of eIFiso4F about 40-fold
192 vage of eIF4GII and poly(A)-binding protein (PABP) has been recently proposed to contribute to comple
194 We show that Cup and polyA-binding protein (PABP) interact physically with Sqd and with each other i
195 bundant cytoplasmic poly(A) binding protein (PABP) is a highly conserved multifunctional protein, man
200 nctional homolog of poly(A) binding protein (PABP) known as nonstructural protein 3 (NSP3) for transl
203 ssociate with polyadenylate-binding protein (PABP) suppressed behavioral rhythms and decreased abunda
204 E), eIF4G, and poly(A) tail-binding protein (PABP) that circularizes mRNAs, promoting translation and
205 oly(A) tail and the poly(A)-binding protein (PABP) to achieve maximal IRES-mediated translational eff
206 ins aldolase C and poly (A)-binding protein (PABP) undergo competitive interactions in cells coexpres
207 by interactions of poly(A)-binding protein (PABP) with both the poly(A) tail and initiation factor e
214 on factor eIF4G and poly(A)-binding protein (PABP), and strongly and selectively enhances the level o
217 il becomes bound by poly(A) binding protein (PABP), which in turn binds eIF4G and helps it displace M
230 otides (poly A) and poly A binding proteins (PABPs) for optimal expression, we complexed synthetic mR
231 anions (PAs) and polyanion-binding proteins (PABPs) have been found to play significant roles in many
235 eins interact with poly(A)-binding proteins (PABPs), which are critical for the initiation of transla
236 and A3F, including poly(A)-binding proteins (PABPs), YB-1, Ro-La, RNA helicases, ribosomal proteins,
239 bacterially expressed 3C cleaved recombinant PABP in vitro in the absence of any virus-encoded or euk
241 hat tissue is thus tagged by the recombinant PABP and separated from mRNA in other tissues by co-immu
242 iverse RNA-binding proteins directly recruit PABP, in a non-poly(A) tail-dependent manner, to stimula
244 Expression of 3C(pro) cleavage-resistant PABP in cells increased translation of nonreplicating vi
245 Further, expression of cleavage-resistant PABP in cells reduced the accumulation of viral RNA and
246 fected cells expressing a cleavage-resistant PABP variant, viral RNA synthesis and infectious virus p
247 ction of this activity, the levels of RPS17, PABP, eEF1A, and eEF2 proteins are also diminished in DM
250 he EMCV 3C proteinase mediates site-specific PABP cleavage and demonstrate that PABP cleavage by 3C r
251 that EMCV infection stimulates site-specific PABP proteolysis, resulting in accumulation of a 45-kDa
252 se was necessary and sufficient to stimulate PABP cleavage in uninfected cells, and bacterially expre
255 minal sequencing of the resulting C-terminal PABP fragment identified a 3C(pro) cleavage site on PABP
256 thermore, we have identified four N-terminal PABP cleavage products produced during PV infection and
263 ansposition process, these data suggest that PABP may contribute to the SINE retrotransposition proce
267 t eIF4G1 can functionally substitute for the PABP-binding segment to rescue the function of an eIF4G1
269 tivate translation initiation as part of the PABP-eIF4G-eIF4E complex that stimulates the initial cap
270 conserved region, an x-ray structure of the PABP-like segment of the human HYD protein has been dete
271 Fluorescence stopped-flow studies of the PABP.eIFiso4F protein complex with cap show a concentrat
272 ion in cell extracts suggests that RNA1, the PABP-binding domain, and two conserved elements (Box1 an
273 line with previous studies showing that the PABP C-terminal domain also interacts with additional pr
275 nd eIFiso4G exhibited competitive binding to PABP, supporting the overlapping nature of their interac
279 F2alpha in the pioneer round of translation, PABP-interacting protein 2, which is known to destabiliz
280 transposon and a nonfunctional transposase (PABP 44.33+/-4.04 mmHg; RV/WH ratio 0.280+/-0.01; wall t
281 ition vector, we examined the effects of two PABPs (encoded by PABPN1 and PABPC1) on the retrotranspo
282 ation (i.e., the internal arrangement of two PABPs on a poly(A) streak in which the C-termini face to
283 ooperative binding conformation of wild-type PABPs indicates that the C-C domain interaction doubles
288 a- or gammaherpesvirus-infected cells, where PABP is redistributed to nuclei, PABP accumulated in the
290 mediates a physical interaction of ATX2 with PABP in addition to promoting ATX2 assembly with polyrib
291 sults suggest that ORF transit combined with PABP function contribute to interactions between ribosom
296 mammalian neurons MKRN1-short interacts with PABP to locally control the translation of dendritic mRN
297 nal dendrites, MKRN1-short co-localizes with PABP in granule-like structures, which are morphological
300 synthetic mRNA containing a poly A tail with PABPs in a stoichiometric manner and stabilized the ribo
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