Mechanisms of base selection by human single-stranded selective monofunctional uracil-DNA glycosylase [PDF]
, 2009 hSMUG1 (human single-stranded selective monofunctional uracil-DNA glyscosylase) is one of three glycosylases encoded within a small region of human chromosome 12. Those three glycosylases, UNG (uracil-DNA glycosylase), TDG (thymine-DNA glyscosylase), and
Agus Darwanto +63 more
core +3 more sources
An AP endonuclease functions in active DNA demethylation and gene imprinting in Arabidopsis [corrected]. [PDF]
PLoS Genetics, 2015 Active DNA demethylation in plants occurs through base excision repair, beginning with removal of methylated cytosine by the ROS1/DME subfamily of 5-methylcytosine DNA glycosylases.
Yan Li +8 more
doaj +1 more source
Structure and stereochemistry of the base excision repair glycosylase MutY reveal a mechanism similar to retaining glycosidases. [PDF]
, 2015 MutY adenine glycosylases prevent DNA mutations by excising adenine from promutagenic 8-oxo-7,8-dihydroguanine (OG):A mismatches. Here, we describe structural features of the MutY active site bound to an azaribose transition state analog which indicate a
Cao, Sheng +6 more
core +2 more sources
Architecturally diverse proteins converge on an analogous mechanism to inactivate Uracil-DNA glycosylase [PDF]
, 2013 Uracil-DNA glycosylase (UDG) compromises the replication strategies of diverse viruses from unrelated lineages. Virally encoded proteins therefore exist to limit, inhibit or target UDG activity for proteolysis.
A. R. Cole +39 more
core +1 more source
Chicken MBD4 Regulates Immunoglobulin Diversification by Somatic Hypermutation
Frontiers in Immunology, 2019 Immunoglobulin (Ig) diversification occurs via somatic hypermutation (SHM) and class switch recombination (CSR), and is initiated by activation-induced deaminase (AID), which converts cytosine to uracil.
Ryan Costello +2 more
doaj +1 more source
A mutant of uracil DNA glycosylase that distinguishes between cytosine and 5-methylcytosine. [PDF]
PLoS 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
Frontiers in Oncology, 2022 Recently, biallelic germline variants of the DNA glycosylase genes MUTYH and NTHL1 were linked to polyposis susceptibility. Significant fractions remain without a molecular explanation, warranting searches for underlying causes.
Alisa Petriina Olkinuora +23 more
doaj +1 more source
Single-strand selective monofunctional uracil-DNA glycosylase (SMUG1) deficiency is linked to aggressive breast cancer and predicts response to adjuvant therapy [PDF]
, 2013 Uracil in DNA is an important cause of mutagenesis. SMUG1 is a uracil DNA glycosylase that removes uracil through base excision repair. SMUG1 also processes radiation induced oxidative base damage as well as 5-fluorouracil incorporated into DNA during
Abdel-Fatah, TMA +9 more
core +1 more source
Non-flipping DNA glycosylase AlkD scans DNA without formation of a stable interrogation complex
Communications Biology, 2021 Ahmadi et al. use a single-molecule tracking method to describe the DNA scanning mode of AlkD, a HEAT-like repeat DNA glycosylase. They show that, contrary to other glycosylases that use a base-flipping mechanism, AlkD scans the DNA without forming a ...
Arash Ahmadi +10 more
doaj +1 more source