Results 91 to 100 of about 3,738,521 (387)
Flap endonuclease 1 (FEN1) is an important component of the intricate molecular machinery for DNA replication and repair. FEN1 is a structure-specific 5′ nuclease that cleaves nascent single-stranded 5′ flaps during the maturation of Okazaki fragments ...
Mohamed A. Sobhy+5 more
doaj
The work seeks to identify molecules with inhibitory activity against the DNA gyrase of Gram-negative microorganisms resistant to fluoroquinolones. Previously designed compounds were used to study antimicrobial potential in silico.
Manuel Alejandro Coba-Males+2 more
doaj +1 more source
Aβ42 promotes the aggregation of α‐synuclein splice isoforms via heterogeneous nucleation
The aggregation of amyloid‐β (Aβ) and α‐synuclein (αSyn) is associated with Alzheimer's and Parkinson's diseases. This study reveals that Aβ aggregates serve as potent nucleation sites for the aggregation of αSyn and its splice isoforms, shedding light on the intricate interplay between these two pathogenic proteins.
Alexander Röntgen+2 more
wiley +1 more source
A quantitative model of the initiation of DNA replication in Saccharomyces cerevisiae predicts the effects of system perturbations. [PDF]
BackgroundEukaryotic cell proliferation involves DNA replication, a tightly regulated process mediated by a multitude of protein factors. In budding yeast, the initiation of replication is facilitated by the heterohexameric origin recognition complex ...
DaSilva, Lance F+6 more
core +3 more sources
The yeast mitoribosome assembly factor Rsm22 contains a [4Fe‐4S] cluster that is matured by the mitochondrial iron–sulfur cluster assembly (ISC) machinery. Defects in ISC components result in impaired mitochondrial protein synthesis due to a mitoribosome assembly defect.
Ulrich Mühlenhoff+4 more
wiley +1 more source
DNA unwinding mechanism of a eukaryotic replicative CMG helicase
The DNA duplex is known to be split apart in a steric exclusion manner during replication, but the specific mechanism has remained unclear. Here the authors present a cryo-EM structure of a eukaryotic replicative CMG helicase on forked DNA, revealing the
Zuanning Yuan+5 more
doaj +1 more source
Development of visible light‐sensitive human neuropsin (OPN5) via single amino acid substitution
The present study determines a key amino acid residue, Lys91, for defining UV sensitivity of human OPN5. Heterologous action spectroscopy of the wild type and K91 mutants of OPN5 in HEK293T cells reveals that substitution of Lys91 with neutral (alanine) or acidic amino acids (glutamic or aspartic acids) causes substantial shifts in spectral sensitivity
Yusuke Sakai+2 more
wiley +1 more source
Eukaryotic Mismatch Repair in Relation to DNA Replication.
Three processes act in series to accurately replicate the eukaryotic nuclear genome. The major replicative DNA polymerases strongly prevent mismatch formation, occasional mismatches that do form are proofread during replication, and rare mismatches that ...
T. Kunkel, D. Erie
semanticscholar +1 more source
Complexities associated with expression of Epstein-Barr virus (EBV) lytic origins of DNA replication. [PDF]
EBV has two lytic origins (oriLyt) of DNA replication lying at divergent sites on the viral genome within a duplicated sequence (DS). The latter contains potential hairpin loops, ‘hinge’ elements and the promoters for transcripts from viral genes BHLF1 ...
Griffin, BE, Xue, SA
core +2 more sources
Exploring lipid diversity and minimalism to define membrane requirements for synthetic cells
Designing the lipid membrane of synthetic cells is a complex task, in which its various roles (among them solute transport, membrane protein support, and self‐replication) should all be integrated. In this review, we report the latest top‐down and bottom‐up advances and discuss compatibility and complexity issues of current engineering approaches ...
Sergiy Gan+2 more
wiley +1 more source