Results 41 to 50 of about 80,345 (286)

Synthesis of a bifunctional cytidine derivative and its conjugation to RNA for in vitro selection of a cytidine deaminase ribozyme

Beilstein Journal of Organic Chemistry, 2014
Over the past 20 years, the generation of functional RNAs by in vitro selection has become a standard technique. Apart from aptamers for simple binding of defined ligands, also RNAs for catalysis of chemical reactions have been selected.
Nico Rublack, Sabine Müller
doaj   +1 more source

Chemical investigation of light induced DNA bipyrimidine damage and repair [PDF]

, 2011
In all organisms, genetic information is stored in DNA and RNA. Both of these macromolecules are damaged by many exogenous and endogenous events, with UV irradiation being one of the major sources of damage.
Carell, Thomas, Heil, Korbinian, Pearson, David   +2 more
core   +1 more source

Nucleotides Cytidine and Uridine Associated with Vitamin B12 vs B-Complex Vitamins in the Treatment of Low Back Pain: The NUBES Study

Journal of Pain Research, 2020
Marco Antonio Naslausky Mibielli,1 Carlos Pereira Nunes,1,2 Henrique Goldberg,3 Luiz Buchman,2 Lisa Oliveira,4 Spyros GE Mezitis,5 Fernanda Wajnzstajn,6 Renato Kaufman,3 Rafael Nigri,7 Natasha Cytrynbaum,3 Karin Soares Cunha,8 Alessandra Santos,4 ...
Mibielli MAN, Nunes CP, Goldberg H, Buchman L, Oliveira L, Mezitis SGE, Wajnzstajn F, Kaufman R, Nigri R, Cytrynbaum N, Cunha KS, Santos A, Goldberg SW, Platenik NC, Rzetelna H, Futuro DB, Da Fonseca AS, Geller M   +17 more
doaj  

In vitro Assay for Cytidine Deaminase Activity of APOBEC3 Protein

Bio-Protocol, 2014
Cytidine deaminases are enzymes that catalyze the removal of an amino group from cytidine, forming uridine. APOBEC3 (ApolipoproteinB mRNA editing enzyme, catalytic polypeptide like) proteins are cytidine deaminases that deaminate cytidines in ...
Smita Nair, Smita Nair
doaj   +1 more source

IMPDH inhibition enhances cytarabine efficacy in SAMHD1‐expressing leukaemia cells via guanine nucleotide depletion

Molecular Oncology, EarlyView.
Cytarabine is a key therapy for acute myeloid leukaemia (AML), but its efficacy is limited by the dNTPase SAMHD1, which hydrolyses its active metabolite. Screening nucleotide biosynthesis inhibitors revealed that IMPDH inhibitors selectively sensitise SAMHD1‐proficient AML cells to cytarabine.
Miriam Yagüe‐Capilla, Christopher Dirks, Caroline Eiden, Sonja K. Fesenmayer, Femke M. Hormann, Yolande Klootsema, Ingrid Lilienthal, Si Min Zhang, Nikolas Herold, Sean G. Rudd   +9 more
wiley   +1 more source

Gender effects on cytidine analogue metabolism and myelodysplastic syndrome treatment outcomes [PDF]

, 2012
In vivo, half-lives of cytidine analogues such as 5-azacytidine and decitabine, used to treat myelodysplastic syndromes (MDS), are determined largely by cytidine deaminase (CDA), an enzyme that rapidly metabolizes these drugs into inactive uridine ...
Ania Jankowska, Jaroslaw Maciejewski, Joseph Covey, Kenneth Chan, Kory Engelke, Mikkael Sekeres, Pramod Terse, Quteba Ebrahem, Ramon Tiu, Reda Mahfouz, Tomas Radivoyevitch, Yogen Saunthararajah, Yonghua Ling, Zhenbo Hu   +13 more
core   +1 more source

CCCTC-binding factor locks premature IgH germline transcription and restrains class switch recombination [PDF]

, 2017
In response to antigenic stimulation B cells undergo class switch recombination (CSR) at the immunoglobulin heavy chain (IgH) to replace the primary IgM/IgD isotypes by IgG, IgE, or IgA.
Marina-Zárate, Ester, Pérez-García, Arantxa, Ramiro, Almudena R.   +2 more
core   +3 more sources

Cytidine Deaminase Activity Drives Cytotoxicity of Modified Cytidines [PDF]

Cancer Discovery, 2015
Abstract Cytidine deaminase (CDA) overexpression confers susceptibility to epigenetically modified cytidines.
openaire   +1 more source

Directed evolution of enzymes at the crossroads of tradition and innovation

FEBS Open Bio, EarlyView.
An iterative cycle of data‐driven enzyme optimization comprising four stages: genetic diversification of a template enzyme, expression of protein variants, high‐throughput evaluation, and machine‐learning‐guided redesign of the next variant library.
Maria Tomkova, Andrej Mirossay, Erik Sedlak   +2 more
wiley   +1 more source

Crystal structure of APOBEC3A bound to single-stranded DNA reveals structural basis for cytidine deamination and specificity

Nature Communications, 2017
Cytidine deaminases are evolutionarily conserved enzymes that edit genomes by deaminating cytidine to uridine. Here the authors present the crystal structure of APOBEC3A with a single-stranded DNA substrate bound in the active site to shed light on the ...
Takahide Kouno, Tania V. Silvas, Brendan J. Hilbert, Shivender M. D. Shandilya, Markus F. Bohn, Brian A. Kelch, William E. Royer, Mohan Somasundaran, Nese Kurt Yilmaz, Hiroshi Matsuo, Celia A. Schiffer   +10 more
doaj   +1 more source