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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 has been found to stimulate translation initiation
7 PABP increases the efficiency of translation termination
8 PABP is able to bind the poly(A) tail of mRNA, as well a
9 PABP's function in translation termination depends on it
10 PABPs accelerate miRNA-mediated deadenylation, but this
11 ith the SG marker poly(A)-binding protein 1 (PABP-1), whereas inclusions in spinal cord, which contai
13 by the eukaryotic initiation factor (eIF) 4G/PABP/poly(A) tail interaction is achieved instead throug
16 iation time of a cooperatively bound poly(A)/PABP complex as compared with a noncooperatively bound o
17 However, approximately 50% of the poly(A)/PABP complexes exhibit a noncooperative binding conforma
18 t translational initiation, shifted mRNA-A3G-PABP from polysomes into stress granules in a manner tha
19 ntrol animals receiving MCT injection alone (PABP 49.67+/-3.22 mmHg; RV/WH ratio 0.290+/-0.0265; wall
24 there are interaction domains for eIF4A and PABP and we identify, for the first time, the interactio
27 c promoted the interaction between eIF4B and PABP but not the interaction between eIF4B and eIF4A or
37 onal repression of unlocalized grk mRNA, and PABP and Enc facilitate translational activation of the
39 A was found to be important for both RNA and PABP recognition, revealing a new role for this protein-
45 of cross-regulation between the Arabidopsis PABPs that belong to different classes but are simultane
47 with 2-[N-(alpha-picolyl)amino]benzophenone (PABP)] 2 via alkyl halide alkylations and Michael additi
49 ults demonstrate a novel interaction between PABP and several plant proteins sharing a SxLnpxApxFxP m
51 ression, which interferes with poly(A)-bound PABP, precluding PABP-enhanced microRNA-mediated inhibit
54 ection, only 25 to 35% of the total cellular PABP is cleaved; therefore, we hypothesized that the poo
56 Also, 3C(pro) is more efficient in cleaving PABP in ribosome-enriched fractions than 2A(pro) in vitr
59 KPAF4, a pentatricopeptide repeat-containing PABP which sequesters the A-tail and impedes mRNA degrad
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
79 hemistry of eRF3 and PAIP1/2 competition for PABP binding, we quantified the effects of PAIPs on tran
82 IP1 and PAIP2 inhibited the activity of free PABP on translation termination in vitro However, after
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
87 rget mRNA deadenylation, and identify GW182, PABP, and deadenylase subunits CAF1 and CCR4 as factors
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 nts include the RNA binding proteins Modulo, PABP, and Smooth, the known localization factor Swallow,
108 to enhance formation of activated eIF4F*mRNA*PABP complexes competent to recruit 43S pre-initiation c
110 e extracts was almost completely in A3G-mRNA-PABP complexes that shifted reversibly between polysomes
111 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
118 F4G protein levels, the overall abundance of PABP mRNA, together with the half-life of the polypeptid
120 2 decapping activity reduced the affinity of PABP for cap association and consequently its ability to
123 as microRNAs, influence the associations of PABP and other core factors, and do so without substanti
126 g poly(A) tails, suggesting that cleavage of PABP and IRES trans-activating factors polypyrimidine tr
127 ), like PV 3C(pro), mediates the cleavage of PABP as part of its strategy to inhibit cellular transla
128 d the substrate determinants for cleavage of PABP by 2A protease (2A(pro)) or 3C protease (3C(pro)).
130 bit cap-poly(A) synergy, partial cleavage of PABP by 3Cpro inhibited translation of endogenous mRNAs
134 o interact with the carboxy terminus (CT) of PABP in yeast two-hybrid and in vitro binding assays.
135 data illustrate the importance of the CTD of PABP in poly(A)-dependent translation in mammalian cells
137 2 (PAIP1 and PAIP2), bind the same domain of PABP and regulate its translation-related activity.
138 proteases separated the C-terminal domain of PABP that binds translation factors eIF4B and eRF3 from
139 make direct contact with the MLLE domain of PABP, and their competition for the MLLE is thought to r
142 omplexes act independently of the effects of PABP-eIF4G on cap binding to promote small ribosomal sub
145 virus infection and that the interaction of PABP with translation initiation factors, ribosomes, or
146 nting LARP4 PAM2w interacts with the MLLE of PABP within the affinity range measured for other PAM2 m
147 unctional role for a particular modulator of PABP function, PABP-interacting protein 2a (PAIP2A), in
148 nd eIF4B interact with distinct molecules of PABP to increase the stability of the interaction betwee
149 RNA-binding protein, as a binding partner of PABP that interacts with PABP in an RNA-independent mann
150 therefore, we hypothesized that the pool of PABP associated with polysomes may be preferentially tar
151 have investigated what cleavage products of PABP are produced in vivo and the substrate determinants
152 n representing the C-terminal end of RRM1 of PABP that overlaps with the N-proximal eIFiso4G interact
153 n domain for eIF4G is present in the RRM1 of PABP, whereas eIFiso4G interacts at two sites, i.e. one
154 nc controls the partner protein selection of PABP such that the interaction with eIF4B is preferred o
158 henotypes are mitigated by overexpression of PABPs, inhibition of rDNA transcription, or alterations
161 th the poly(A) tail exacerbate dependency on PABP for deadenylation, more potent miRNA-binding sites
162 icantly, Paip2 accumulation was dependent on PABP accrual, as preventing PABP1 accumulation suppresse
163 agment identified a 3C(pro) cleavage site on PABP between amino acids Q437 and G438, severing the C-t
168 n of 3Cpro in HeLa cells resulted in partial PABP cleavage and similar inhibition of translation.
169 PC1, but not its physiologic binding partner PABP-interacting protein 2 (Paip2), in the nucleus.
170 cumber ( Cucumis sativus L.) proteins, PCI6 (PABP-CT-interacting) and PCI243 were identified based on
171 esting that the diversification of the plant PABP genes has occurred prior to the split of monocots a
174 which enhanced binding of eIF4G and possibly PABP with 100k protein, and simultaneous interaction wit
175 terferes with poly(A)-bound PABP, precluding PABP-enhanced microRNA-mediated inhibition and canonical
176 nt reduction in pulmonary arterial pressure (PABP, 31.67+/-6.03 mmHg, P<0.01), an attenuation of righ
178 hat 3C(pro) plays a major role in processing PABP during virus infection and that the interaction of
179 further indicate that RNA1 and Box1 promote PABP binding, in addition to RNA binding, by the eIF4G1
180 tion with PABP that is sufficient to promote PABP recruitment and necessary for ICP27-mediated activa
181 o by the cytoplasmic poly(A)-binding protein PABP through a direct and specific binding to the 5' end
182 ase (3Cpro) cleaves poly(A)-binding protein (PABP) and removes the C-terminal domain (CTD) that inter
183 f stress granules, poly (A) binding protein (PABP) and TIA-1, appear to be present in the oocyte RNP
184 mains for eIF4E and poly(A)-binding protein (PABP) are thought to enhance formation of activated eIF4
186 hown here that the poly (A)-binding protein (PABP) binds the body of the NF-L transcript and increase
189 vage of eIF4GII and poly(A)-binding protein (PABP) has been recently proposed to contribute to comple
190 Participation of a poly(A) binding protein (PABP) in coupling of editing and 3' modification process
191 radictory roles for poly(A)-binding protein (PABP) in facilitating both protection and deadenylation.
193 We show that Cup and polyA-binding protein (PABP) interact physically with Sqd and with each other i
194 bundant cytoplasmic poly(A) binding protein (PABP) is a highly conserved multifunctional protein, man
198 nctional homolog of poly(A) binding protein (PABP) known as nonstructural protein 3 (NSP3) for transl
202 ssociate with polyadenylate-binding protein (PABP) suppressed behavioral rhythms and decreased abunda
203 E), eIF4G, and poly(A) tail-binding protein (PABP) that circularizes mRNAs, promoting translation and
204 oly(A) tail and the poly(A)-binding protein (PABP) to achieve maximal IRES-mediated translational eff
205 ins aldolase C and poly (A)-binding protein (PABP) undergo competitive interactions in cells coexpres
212 on factor eIF4G and poly(A)-binding protein (PABP), and strongly and selectively enhances the level o
215 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
243 Expression of 3C(pro) cleavage-resistant PABP in cells increased translation of nonreplicating vi
244 Further, expression of cleavage-resistant PABP in cells reduced the accumulation of viral RNA and
245 fected cells expressing a cleavage-resistant PABP variant, viral RNA synthesis and infectious virus p
246 ction of this activity, the levels of RPS17, PABP, eEF1A, and eEF2 proteins are also diminished in DM
247 NA decay at short lengths known to sensitize PABP dissociation in response to deadenylation machinery
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
254 tro However, after binding the poly(A) tail, PABP became insensitive to suppression by PAIPs and effi
256 minal sequencing of the resulting C-terminal PABP fragment identified a 3C(pro) cleavage site on PABP
257 thermore, we have identified four N-terminal PABP cleavage products produced during PV infection and
264 ansposition process, these data suggest that PABP may contribute to the SINE retrotransposition proce
268 t eIF4G1 can functionally substitute for the PABP-binding segment to rescue the function of an eIF4G1
270 tivate translation initiation as part of the PABP-eIF4G-eIF4E complex that stimulates the initial cap
271 ion in cell extracts suggests that RNA1, the PABP-binding domain, and two conserved elements (Box1 an
272 line with previous studies showing that the PABP C-terminal domain also interacts with additional pr
274 nd eIFiso4G exhibited competitive binding to PABP, supporting the overlapping nature of their interac
278 F2alpha in the pioneer round of translation, PABP-interacting protein 2, which is known to destabiliz
279 transposon and a nonfunctional transposase (PABP 44.33+/-4.04 mmHg; RV/WH ratio 0.280+/-0.01; wall t
280 ition vector, we examined the effects of two PABPs (encoded by PABPN1 and PABPC1) on the retrotranspo
281 ation (i.e., the internal arrangement of two PABPs on a poly(A) streak in which the C-termini face to
282 ooperative binding conformation of wild-type PABPs indicates that the C-C domain interaction doubles
287 a- or gammaherpesvirus-infected cells, where PABP is redistributed to nuclei, PABP accumulated in the
289 mediates a physical interaction of ATX2 with PABP in addition to promoting ATX2 assembly with polyrib
290 sults suggest that ORF transit combined with PABP function contribute to interactions between ribosom
295 mammalian neurons MKRN1-short interacts with PABP to locally control the translation of dendritic mRN
296 nal dendrites, MKRN1-short co-localizes with PABP in granule-like structures, which are morphological
298 maintain poly(A)-RNA levels in balance with PABPs and other RBPs with mutable substrate specificity
300 synthetic mRNA containing a poly A tail with PABPs in a stoichiometric manner and stabilized the ribo