Results 241 to 250 of about 290,253 (274)

TP53BP2 Promotes Placental Autophagy and Preeclampsia via G9a and DNMT1 Cooperatively Modulating E2F1

Advanced Science, EarlyView.
G9a, and DNA Methyltransferase1 (DNMT1) cooperatively modulates E2F1 on the promoter of tumor suppressor p53‐binding protein 2 (TP53BP2) increased autophagy in preeclampsia. TP53BP2 promotes autophagy in trophoblasts through DNA methylation and H3K9me2‐mediated transcriptional regulation.
Nan Jiang, Shaoju Jin, Shaoying Wen, Wen Zeng, Chen Wang, Jingyu Wang, Qingyun Song, Guizhong Li, Pengzhi Yin, Yuhui Liao, Yuee Chai, Huiping Zhang, Shengchao Ma   +12 more
wiley   +1 more source

Genome‐Wide Codon Reprogramming Enables a Multifactorially Attenuated Influenza Vaccine with Broad Cross‐Protection

Advanced Science, EarlyView.
Genome‐wide codon reprogramming of influenza A virus introduces 1956 synonymous mutations across five segments and elevates CpG content, causing defective NA packaging, loss of NS1 accumulation, and enhanced ZAP‐mediated antiviral responses without affecting RNA or protein synthesis. These mechanisms result in profound attenuation and potent homologous
Yang Wang, Tianxin Ma, Yujiao He, Qinming Li, Kailin Mai, Minying Mo, Chenyang Cao, Jiahui Li, Pei Feng, Jiaojiao Peng, Jing Sun, Weiqi Pan, Zifeng Yang, Ling Chen   +13 more
wiley   +1 more source

Wireless Bioelectronic Modulation of Membrane Potential in Glioblastoma Using Carbon Nanotube Porins

Advanced Science, EarlyView.
A schematic illustrating glioblastoma cell membrane modulation using carbon nanotube porins (CNTPs) and an applied voltage. CNTPs enable ion flux leading to changes in membrane potential. This figure summarizes the concept of bioelectronic control of cell membrane voltage.
Fleur Groualle, David Onion, Julie A. Watts, Graham A. Rance, Aleksandr Noy, Beth Coyle, Frankie J. Rawson   +6 more
wiley   +1 more source

GOT1 Inhibition Induces Extracellular Matrix Remodeling in Pancreatic Cancer

Advanced Science, EarlyView.
Using tumor tissue engineering, we recreated pancreatic cancer and found that inhibiting glutamic‐oxaloacetic transaminase 1 (GOT1) induces extracellular matrix remodeling and secretome rewiring, as well as promotes cell death. ABSTRACT Pancreatic cancer cells rely on glutamine to sustain their survival in the stiff and poorly vascularized tumor ...
Rodrigo Curvello, Sandra Hauser, Michael Seifert, Christopher K. Barlow, Joel R. Steele, Emma Salisbury, Daniel Croagh, Kathryn S. Stok, Anna V. Taubenberger, Ralf B. Schittenhelm, Daniela Loessner   +10 more
wiley   +1 more source

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Molecular diversities of RNases H

Journal of Bioscience and Bioengineering, 1999
RNase H is an enzyme that specifically cleaves RNA hybridized to DNA. The enzyme is ubiquitously present in various organisms. Single bacterial and eucaryotic cells often contain two RNases H, whereas single archaeal cells contain only one. To determine whether there is a physiological significance in the ubiquity and multiplicity of the enzyme, and ...
N, Ohtani, M, Haruki, M, Morikawa, S, Kanaya   +3 more
openaire   +2 more sources

RNases H: Structure and mechanism

DNA Repair, 2019
RNases H are a family of endonucleases that hydrolyze RNA residues in various nucleic acids. These enzymes are present in all branches of life, and their counterpart domains are also found in reverse transcriptases (RTs) from retroviruses and retroelements.
Malwina, Hyjek, Małgorzata, Figiel, Marcin, Nowotny   +2 more
openaire   +2 more sources

Stereochemical Course of Escherichia coli RNase H.

ChemInform, 2002
A new enzymatic method has allowed the assignment of the stereochemistry of E. coli RNase-H-assisted hydrolysis of RNA labelled within the scissile bond with (R(p))-phosphorothioate. This method is based on a stereospecific, two-step enzymatic conversion of cytidine 5'-[(18)O]phosphorothioate into the corresponding 5'-alpha-[(18)O]thiotriphosphate ...
Agnieszka, Krakowiak, Alina, Owczarek, Maria, Koziołkiewicz, Wojciech J, Stec   +3 more
openaire   +2 more sources

The RNase H Mechanism

2007
Antisense oligonucleotides (ASOs) are designed to modulate the information transfer from gene to protein-in essence to alter mRNA intermediary metabolism. mRNA intermediary metabolism is extremely complex beginning with transcription and concluding with degradation usually after translation.
Hongjiang Wu, Stanley Crooke, Walt Lima
openaire   +2 more sources

Discrimination between mammalian RNases H-1 and H-2

Analytical Biochemistry, 1991
The two principal RNases H in mammalian cells, H-1 and H-2, differ in their responses to sale, divalent metal, and sulfhydryl inhibition. Specific reaction conditions that provide unambiguous discrimination between RNases H-1 and H-2 with only two assays are described. The assays were used for identification in a new purification procedure for RNases H-
M, Goulian, C J, Heard
openaire   +2 more sources

Pyridopyrimidinone inhibitors of HIV-1 RNase H

European Journal of Medicinal Chemistry, 2014
Using a structure based pharmacophore design, a weak inhibitor of RNase H, identified from a small library of two metal binding HIV-1 integrase inhibitors, was optimized for potency and physicochemical properties. This manuscript describes the SAR and in vivo DMPK for the pyridopyrimidinone class of inhibitors.
Emile J. Velthuisen, Brian A. Johns, Peter Gerondelis, Yan Chen, Ming Li, Ke Mou, Wenwen Zhang, John W. Seal, Kendra E. Hightower, Sonia R. Miranda, Kevin Brown, Lisa Leesnitzer   +11 more
openaire   +2 more sources