Results 11 to 20 of about 29,834 (207)

Determination of the presence of 5-methylcytosine in Paramecium tetraurelia. [PDF]

open access: yesPLoS ONE, 2018
5-methylcytosine DNA methylation regulates gene expression and developmental programming in a broad range of eukaryotes. However, its presence and potential roles in ciliates, complex single-celled eukaryotes with germline-somatic genome specialization ...
Aditi Singh   +5 more
doaj   +5 more sources

Immunodetection of 5′-methylcytosine on Giemsa-stained chromosomes [PDF]

open access: yesBioTechniques, 2005
BioTechniques 527 In higher vertebrates, the major, if not the only, covalent modification of DNA is a methyl-group present at the C5 position of cytosine yielding 5′-methylcytosine (5′-MC). This modification occurs only in the context of CpG dinucleotides, short sequences that are significantly underrepresented in the genome but are found frequently ...
Werner Pfarr   +3 more
doaj   +3 more sources

5-Hydroxymethylcytosine Loss in Conjunctival Melanoma

open access: yesDermatopathology, 2021
Aims: Conjunctival and cutaneous melanoma partially share similar clinical and molecular backgrounds. As 5-hydroxymethylcytosine (5-hmC) loss has been demonstrated in cutaneous melanoma, we decided to assess if similar changes were occurring in ...
Alexandre Stahl   +5 more
doaj   +1 more source

Levels of DNA cytosine methylation in the Drosophila genome [PDF]

open access: yesPeerJ, 2018
Insects provide an accessible system to study the contribution of DNA methylation to complex epigenetic phenotypes created to regulate gene expression, chromatin states, imprinting and dosage compensation.
Saniya Deshmukh   +4 more
doaj   +2 more sources

Discovery of a Bacterial 5-Methylcytosine Deaminase [PDF]

open access: yesBiochemistry, 2014
5-Methylcytosine is found in all domains of life, but the bacterial cytosine deaminase from Escherichia coli (CodA) will not accept 5-methylcytosine as a substrate. Since significant amounts of 5-methylcytosine are produced in both prokaryotes and eukaryotes, this compound must eventually be catabolized and the fragments recycled by enzymes that have ...
Hitchcock, Daniel S.   +4 more
openaire   +2 more sources

Characterizing 5-methylcytosine in the mammalian epitranscriptome [PDF]

open access: yesGenome Biology, 2013
The post-transcriptional modification 5-methylcytosine (m5C) occurs in a wide range of coding and non-coding RNAs. We describe transcriptome-wide approaches to capture the global m5C RNA methylome. We also discuss the potential functions of m5C in RNA and compare them to 6-methyladenosine modifications.
Hussain S   +4 more
openaire   +2 more sources

Whole Genome 5′-Methylcytosine Level Quantification in Cirrhotic HCV-Infected Egyptian Patients with and without Hepatocellular Carcinoma

open access: yesInternational Journal of Genomics, 2020
DNA methylation is an epigenetic mechanism used by cells to control gene expression. DNA methylation is a commonly used epigenetic signaling tool that can hold genes in the “off” position.
Ahmed M. Awad   +3 more
doaj   +1 more source

A mutant of uracil DNA glycosylase that distinguishes between cytosine and 5-methylcytosine. [PDF]

open access: yesPLoS ONE, 2014
We demonstrate that a mutant of uracil DNA glycosylase (N123D:L191A) distinguishes between cytosine and methylcytosine. Uracil DNA glycosylase (UDG) efficiently removes uracil from DNA in a reaction in which the base is flipped into the enzyme's active ...
Scott T Kimber, Tom Brown, Keith R Fox
doaj   +1 more source

Detection of 5-methylcytosine in DNA sequences [PDF]

open access: yesNucleic Acids Research, 1978
Col E1 DNA has methylated cytosine in the sequence 5'-CC*(A/T)GG-3' and methylated adenine in the sequence 5'-GA*TC-3' at the positions indicated by asterisks(*). When the Maxam-Gilbert DNA sequencing method is applied to this DNA, the methylated cytosine (5-methylcytosine) is found to be less reactive to hydrazine than are cytosine and thymine, so ...
H, Ohmori, J I, Tomizawa, A M, Maxam
openaire   +2 more sources

Genetic variants in m5C modification core genes are associated with the risk of Chinese pediatric acute lymphoblastic leukemia: A five-center case–control study

open access: yesFrontiers in Oncology, 2023
ObjectiveTo explore the functions of the polymorphisms in 5-methylcytosine (m5C) modification-related coding genes on the susceptibility of pediatric acute lymphoblastic leukemia (ALL).MethodsCase–control study and multinomial logistic regression ...
Xueliang Wang   +9 more
doaj   +1 more source

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