Results 31 to 40 of about 95,440 (308)

An orphan DNA (cytosine-5-)-methyltransferase in Vibrio cholerae [PDF]

open access: yesMicrobiology, 2006
5-Methyl cytosine (m5C) was detected in genomic DNA of the enteric pathogen Vibrio cholerae by HPLC analysis and immunoblotting with m5C-specific antibody. Although cleavage with the restriction endonuclease EcoRII revealed the absence of a Dcm homologue in V.
Sanjib, Banerjee, Rukhsana, Chowdhury
openaire   +2 more sources

Fluorescent Method for the Detection of Biothiols Using an Ag+-Mediated Conformational Switch

open access: yesSensors, 2019
In this work, a novel, simple, and time-saving fluorescence approach for the detection of biothiols (glutathione and cysteine) was developed by employing a DNA probe labeled with 2-aminopurine.
Han Zhao, Mingjian Chen, Changbei Ma
doaj   +1 more source

5-hydroxymethyl-cytosine enrichment of non-committed cells is not a universal feature of vertebrate development [PDF]

open access: yes, 2012
5-hydroxymethyl-cytosine (5-hmc) is a cytosine modification that is relatively abundant in mammalian pre-implantation embryos and embryonic stem cells (Esc) derived from mammalian blastocysts.
Alexey Ruzov   +41 more
core   +2 more sources

Chemical display of pyrimidine bases flipped out by modification-dependent restriction endonucleases of MspJI and PvuRts1I families.

open access: yesPLoS ONE, 2014
The epigenetic DNA modifications 5-methylcytosine (5mC) and 5-hydroxymethylcytosine (5hmC) in eukaryotes are recognized either in the context of double-stranded DNA (e.g., by the methyl-CpG binding domain of MeCP2), or in the flipped-out state (e.g., by ...
Evelina ZagorskaitÄ—   +1 more
doaj   +1 more source

Analysis of early changes in DNA methylation in synovial fibroblasts of RA patients before diagnosis [PDF]

open access: yes, 2018
DNA methylation is an important epigenetic modification that is known to be altered in rheumatoid arthritis synovial fibroblasts (RASF). Here, we compared the status of promoter DNA methylation of SF from patients with very early RA with SF from patients
Buckley, Christopher D   +6 more
core   +4 more sources

15N NMR study of a mixture of uniformly labeled tRNAs [PDF]

open access: yes, 1982
15N NMR spectra were taken of 15N-enriched tRNA extracted from bakers yeast; ammonium sulfate was used as a nitrogen source. The increase in the degree of denaturation of tRNA, which occurs with increase in temperature from 30 degrees C to 70 degrees C ...
Birdseye, Theresa R.   +3 more
core   +1 more source

Protein-facilitated base flipping in DNA by cytosine-5-methyltransferase [PDF]

open access: yesProceedings of the National Academy of Sciences, 2002
DNA methylation, various DNA repair mechanisms, and possibly early events in the opening of DNA as required for transcription and replication are initiated by flipping of a DNA base out of the DNA double helix. The energetics and structural mechanism of base flipping in the presence of the DNA-processing enzyme, cytosine 5 ...
Niu, Huang   +2 more
openaire   +2 more sources

Molecular Dynamics Simulation of Melting of the DNA Duplex with Silver-Mediated Cytosine–Cytosine Base Pair

open access: yesComputation
Metal-mediated base pairs in DNA double helix molecules open up broad opportunities for biosensors based on DNA clusters with silver due to their low toxicity and applicability in drug design.
Elena B. Gusarova, Natalya A. Kovaleva
doaj   +1 more source

Environmentally sensitive molecular probes reveal mutations and epigenetic 5-methyl cytosine in human oncogenes [PDF]

open access: yes, 2017
There is currently an unmet need for reliable tools that allow for direct detection and quantification of modifications in genomic DNA.
Astakhova, K.   +2 more
core   +2 more sources

Human Amniocytes Are Receptive to Chemically Induced Reprogramming to Pluripotency [PDF]

open access: yes, 2017
Restoring pluripotency using chemical compounds alone would be a major step forward in developing clinical-grade pluripotent stem cells, but this has not yet been reported in human cells.
Adjaye, J   +15 more
core   +4 more sources

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