Results 31 to 40 of about 115,568,697 (304)

Christianto-Smarandache's Poly-Emporium Theory in Economics [PDF]

open access: yes, 1998
A new theory is proposed: poly-emporium theory. A search done in Google on May 3rd, 2008, for the term “poly-emporium” returned no entry, so we introduce it for the first ...
Craciun, I.
core   +1 more source

Poly A- transcripts expressed in HeLa cells. [PDF]

open access: yesPLoS ONE, 2008
Transcripts expressed in eukaryotes are classified as poly A+ transcripts or poly A- transcripts based on the presence or absence of the 3' poly A tail.
Qingfa Wu   +9 more
doaj   +1 more source

Poly(iminomethylenes). 10. Esterolytic catalysis by poly(carbylhistidine) and poly(carbylhistamine) [PDF]

open access: yesRecueil des Travaux Chimiques des Pays-Bas, 1979
AbstractThe catalytic activities in the hydrolysis of 4‐nitro‐ and 2,4‐dinitrophenyl acetate were determined for a polymer of 3‐(4‐imidazolyl)‐2‐isocyanopropanoic acid (1a) and of 2‐(4‐imidazolyl)‐1‐isocyanoethane (1b). A detailed kinetic analysis has been performed.
Eijk, J.M. van der   +3 more
openaire   +2 more sources

The RRM domain of poly(A)-specific ribonuclease has a noncanonical binding site for mRNA cap analog recognition [PDF]

open access: yes, 2008
The degradation of the poly(A) tail is crucial for posttranscriptional gene regulation and for quality control of mRNA. Poly(A)-specific ribonuclease (PARN) is one of the major mammalian 3’ specific exo-ribonucleases involved in the degradation of the ...
Naohiro Kobayashi   +25 more
core   +2 more sources

iCLIP analysis of RNA substrates of the archaeal exosome

open access: yesBMC Genomics, 2020
Background The archaeal exosome is an exoribonucleolytic multiprotein complex, which degrades single-stranded RNA in 3′ to 5′ direction phosphorolytically. In a reverse reaction, it can add A-rich tails to the 3′-end of RNA.
Jochen Bathke   +9 more
doaj   +1 more source

Birth of a poly(A) tail: mechanisms and control of mRNA polyadenylation

open access: yesFEBS Open Bio, 2023
During their synthesis in the cell nucleus, most eukaryotic mRNAs undergo a two‐step 3′‐end processing reaction in which the pre‐mRNA is cleaved and released from the transcribing RNA polymerase II and a polyadenosine (poly(A)) tail is added to the newly
Juan B. Rodríguez‐Molina   +1 more
doaj   +1 more source

RNA-binding proteins distinguish between similar sequence motifs to promote targeted deadenylation by Ccr4-Not

open access: yeseLife, 2019
The Ccr4-Not complex removes mRNA poly(A) tails to regulate eukaryotic mRNA stability and translation. RNA-binding proteins contribute to specificity by interacting with both Ccr4-Not and target mRNAs, but this is not fully understood.
Michael W Webster   +2 more
doaj   +1 more source

Prediction of Poly(A) Sites by Poly(A) Read Mapping. [PDF]

open access: yesPLoS ONE, 2017
RNA-seq reads containing part of the poly(A) tail of transcripts (denoted as poly(A) reads) provide the most direct evidence for the position of poly(A) sites in the genome.
Thomas Bonfert, Caroline C Friedel
doaj   +1 more source

Evaluation of a poly(lactic-acid) scaffold filled with poly(lactide-co-glycolide)/hydroxyapatite nanofibres for reconstruction of a segmental bone defect in a canine model

open access: yesVeterinární Medicína, 2019
Critical-sized bone defects are a difficult problem in both human and veterinary medicine. To address this issue, synthetic graft materials have been garnering attention.
Jang Won Yun   +3 more
doaj   +1 more source

The influence of microRNAs and poly(A) tail length on endogenous mRNA–protein complexes

open access: yesGenome Biology, 2017
Background All mRNAs are bound in vivo by proteins to form mRNA–protein complexes (mRNPs), but changes in the composition of mRNPs during posttranscriptional regulation remain largely unexplored. Here, we have analyzed, on a transcriptome-wide scale, how
Olivia S. Rissland   +9 more
doaj   +1 more source

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