Results 31 to 40 of about 740,120 (268)

Poly(oligonucleotide) [PDF]

open access: yesJournal of the American Chemical Society, 2014
Here we report the preparation of poly(oligonucleotide) brush polymers and amphiphilic brush copolymers from nucleic acid monomers via graft-through polymerization. We describe the polymerization of PNA-norbornyl monomers to yield poly-PNA (poly(peptide nucleic acid)) via ring-opening metathesis polymerization (ROMP) with the initiator, (IMesH2)(C5H5N ...
James, Carrie R.   +6 more
openaire   +2 more sources

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 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

Transcriptome-wide RNA binding analysis of C9orf72 poly(PR) dipeptides

open access: yesLife Science Alliance, 2023
C9orf72 poly(PR) binds to 558 RNAs in human cells, and the sequence GAAGA is enriched at its binding sites. Poly(PR) has nanomolar affinity for GAAGA RNA, and this RNA induces poly(PR) phase separation. An intronic GGGGCC repeat expansion in C9orf72 is a
Rubika Balendra   +13 more
doaj   +1 more source

Sequence specific binding of beta carboline alkaloid harmalol with deoxyribonucleotides: binding heterogeneity, conformational, thermodynamic and cytotoxic aspects. [PDF]

open access: yesPLoS ONE, 2014
Base dependent binding of the cytotoxic alkaloid harmalol to four synthetic polynucleotides, poly(dA).poly(dT), poly(dA-dT).poly(dA-dT), poly(dG).poly(dC) and poly(dG-dC).poly(dG-dC) was examined by various photophysical and calorimetric studies, and ...
Sarita Sarkar   +2 more
doaj   +1 more source

Translation of dipeptide repeat proteins in C9ORF72 ALS/FTD through unique and redundant AUG initiation codons

open access: yeseLife, 2023
A hexanucleotide repeat expansion in C9ORF72 is the most common genetic cause of amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). A hallmark of ALS/FTD pathology is the presence of dipeptide repeat (DPR) proteins, produced from both
Yoshifumi Sonobe   +7 more
doaj   +1 more source

Integrative analysis of Poly(A)-seq and RNA-seq reveals transcriptional regulation of poly(A) tail length in tuberculosis

open access: yesMicrobiology Spectrum
Tuberculosis (TB) is a serious global health problem, and the molecular mechanisms underlying TB pathogenesis remain poorly understood to date. Differential expression of many genes is an important contributor to TB, and poly(A) tails have previously ...
Bahetibieke Tuohetaerbaike   +10 more
doaj   +1 more source

Poly(dG).poly(dC) at neutral and alkaline pH: the formation of triple stranded poly(dG).poly(dG). poly(dC)

open access: yesNucleic Acids Research, 1978
Alkaline titrations of different samples of poly(dG).poly(dC) and of the constituent homopolymers poly(dG) and poly(dC) have been performed in 0.15 M NaCl and their CD spectra followed. Sample I contained a slight excess of poly(dC) (52% C: 48% G) and showed a single reversible transition (pK = 11.9) due to the dissociation of double stranded poly(dG ...
C, Marck, D, Thiele
openaire   +3 more sources

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Poly(A)-Binding Protein Regulates the Efficiency of Translation Termination

open access: yesCell Reports, 2020
Summary: Multiple factors influence translation termination efficiency, including nonsense codon identity and immediate context. To determine whether the relative position of a nonsense codon within an open reading frame (ORF) influences termination ...
Chan Wu   +4 more
doaj   +1 more source

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