Results 81 to 90 of about 1,834,577 (295)

Analysis of RNA cleavage by MALDI-TOF mass spectrometry

Nucleic Acids Research, 2012
A method of analysis is presented that utilizes matrix-assisted laser desorption/ionization-time of flight mass spectrometry (MALDI-TOF MS) to monitor the kinetics and products of RNA cleavage, by use of a program designed to mass-match observed MS peaks
J. Joyner, K. Keuper, J. Cowan
semanticscholar   +1 more source

Lead-catalysed specific cleavage of ribosomal RNAs

Nucleic Acids Research, 1997
Ribosomes have long been known to require divalent metal ions for their functional integrity. Pb2+-induced cleavage of the sugar-phosphate backbone has now been used to probe for metal binding sites in rRNA. Only three prominent Pb2+cleavages have been detected, with cleavage sites 5' of G240 in 16S rRNA and two sites 5' of A505 and C2347 in 23S rRNA ...
D, Winter, N, Polacek, I, Halama, B, Streicher, A, Barta   +4 more
openaire   +3 more sources

Therapeutic strategies for MMAE‐resistant bladder cancer through DPP4 inhibition

Molecular Oncology, EarlyView.
We established monomethyl auristatin E (MMAE)‐resistant bladder cancer (BC) cell lines by exposure to progressively increasing concentrations of MMAE in vitro. RNA sequencing showed DPP4 expression was increased in MMAE‐resistant BC cells. Both si‐DPP4 and the DPP4 inhibitor sitagliptin suppressed the viability of MMAE‐resistant BC cells.
Gang Li, Shuichi Tatarano, Hirofumi Yoshino, Saeki Saito, Mitsuhiko Tominaga, Junya Arima, Ikumi Fukuda, Takashi Sakaguchi, Ryosuke Matsushita, Yasutoshi Yamada, Hideki Enokida   +10 more
wiley   +1 more source

Preferential cleavage of the coronavirus defective viral genome by cellular endoribonuclease with characteristics of RNase L

Virology Journal
In testing whether coronavirus defective viral genome 12.7 (DVG12.7) with transcription regulating sequence (TRS) can synthesize subgenomic mRNA (sgmRNA) in coronavirus-infected cells, it was unexpectedly found by Northern blot assay that not only sgmRNA
Ching-Hung Lin, Hsuan-Yung Lin, Chun-Chun Yang, Hsuan-Wei Hsu, Feng-Cheng Hsieh, Cheng-Yao Yang, Hung-Yi Wu   +6 more
doaj   +1 more source

Preparation of Small RNAs Using Rolling Circle Transcription and Site-Specific RNA Disconnection

Molecular Therapy: Nucleic Acids, 2015
A facile and robust RNA preparation protocol was developed by combining rolling circle transcription (RCT) with RNA cleavage by RNase H. Circular DNA with a complementary sequence was used as the template for promoter-free transcription.
Xingyu Wang, Can Li, Xiaomeng Gao, Jing Wang, Xingguo Liang   +4 more
doaj   +1 more source

Dammarenediol II enhances etoposide‐induced apoptosis by targeting O‐GlcNAc transferase and Akt/GSK3β/mTOR signaling in liver cancer

Molecular Oncology, EarlyView.
Etoposide induces DNA damage, activating p53‐dependent apoptosis via caspase‐3/7, which cleaves PARP1. Dammarenediol II enhances this apoptotic pathway by suppressing O‐GlcNAc transferase activity, further decreasing O‐GlcNAcylation. The reduction in O‐GlcNAc levels boosts p53‐driven apoptosis and influences the Akt/GSK3β/mTOR signaling pathway ...
Jaehoon Lee, Byung‐Cheol Han, Gi‐Bang Koo, Jihye Park, Mijin Kwon, Young Bin Park, Jae‐Mun Choi, Seung‐Ho Lee, Sangho Roh   +8 more
wiley   +1 more source

Massive Analysis of Rice Small RNAs: Mechanistic Implications of Regulated MicroRNAs and Variants for Differential Target RNA Cleavage[W][OA]

The Plant Cell, 2011
This massive analysis of rice small RNAs evaluated annotated microRNAs (miRNAs) and identified new miRNAs and miRNAs regulated by environmental stresses.
D. Jeong, Sunhee Park, J. Zhai, Sai Guna Ranjan Gurazada, E. De Paoli, B. Meyers, P. Green   +6 more
semanticscholar   +1 more source

RNA methylation by Dnmt2 protects transfer RNAs against stress-induced cleavage [PDF]

Genes & Development, 2010
Dnmt2 proteins are the most conserved members of the DNA methyltransferase enzyme family, but their substrate specificity and biological functions have been a subject of controversy. We show here that, in addition to tRNA Asp-GTC , tRNA Val-AAC and tRNA
Schaefer M, Pollex T, Hanna K, Tuorto F, Meusburger M, Helm M, Lyko F   +6 more
openaire   +3 more sources

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Genetic Predisposition To Acquire a Polybasic Cleavage Site for Highly Pathogenic Avian Influenza Virus Hemagglutinin

mBio, 2017
Highly pathogenic avian influenza viruses with H5 and H7 hemagglutinin (HA) subtypes evolve from low-pathogenic precursors through the acquisition of multiple basic amino acid residues at the HA cleavage site. Although this mechanism has been observed to
Naganori Nao, Junya Yamagishi, Hiroko Miyamoto, Manabu Igarashi, Rashid Manzoor, Aiko Ohnuma, Yoshimi Tsuda, Wakako Furuyama, Asako Shigeno, Masahiro Kajihara, Noriko Kishida, Reiko Yoshida, Ayato Takada   +12 more
doaj   +1 more source