Results 121 to 130 of about 3,982 (151)

RNA modifications: molecular orchestrators of wound healing. [PDF]

open access: yesBurns Trauma
Guo X   +8 more
europepmc   +1 more source

Theory Uncovers an Unusual Mechanism of DNA Repair of a Lesioned Adenine by AlkB Enzymes

Journal of the American Chemical Society, 2014
DNA-base lesions cause cancer and propagate into the genome. We use in-protein QM/MM calculations to study the repair of etheno-bridged adenine (εA) by the iron(IV)-oxo species of AlkB enzymes. Recent experimental investigations, using mass-spectrometry and in crystallo isolation, suggested that εA was repaired by formation of an epoxide (εA-ep) that ...
Usharani Dandamudi   +2 more
exaly   +3 more sources

Replacement of non-heme Fe(II) with Cu(II) in the α-ketoglutarate dependent DNA repair enzyme AlkB: Spectroscopic characterization of the active site

Journal of Inorganic Biochemistry, 2007
The bacterial DNA repair enzyme AlkB is an alpha-ketoglutarate (alphaKG) dependent non-heme Fe(II) containing dioxygenase. Here we describe, for the first time, the preparation of a Cu(II)-reconstituted form of AlkB in various complexes. Spectroscopic characterization showed correct AlkB folding upon incorporation of Cu(II) in the active site.
Boris Bleijlevens   +2 more
exaly   +3 more sources

Aberrant activity of the DNA repair enzyme AlkB

Journal of Inorganic Biochemistry, 2004
Escherichia coli AlkB is a DNA/RNA repair enzyme containing a mononuclear Fe(II) site that couples the oxidative decomposition of alpha-ketoglutarate (alphaKG) to the hydroxylation of 1-methyladenine or 3-methylcytosine lesions in DNA or RNA, resulting in release of formaldehyde and restoration of the normal bases.
Timothy F, Henshaw   +2 more
openaire   +2 more sources

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