Results 131 to 140 of about 207,238 (265)

The ubiquitin‐proteasome system and autophagy as guardians of the cellular proteome

FEBS Letters, EarlyView.
This Perspective covers the three principles governing the crosstalk between the ubiquitin‐proteasome system and autophagy in cellular proteostasis: (1) a shared ubiquitin code routing substrates via shuttle factors or autophagy receptors; (2) spatial compartmentalization into phase‐separated degradation hubs and organelle‐specific modules (exemplified
Ivan Dikic
wiley   +1 more source

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

FEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

Depletion of Uhrf1 inhibits chromosomal DNA replication in Xenopus egg extracts [PDF]

, 2013
UHRF1 (ubiquitin-like, containing PHD and RING finger domains 1) has a well-established role in epigenetic regulation through the recognition of various histone marks and interaction with chromatin-modifying proteins.
Taylor, Elaine, Price, Jordan, Bonsu-Dartnall, Nicola, Lindsay, Howard   +3 more
core  

Mapping Subunit Location on the Saccharomyces cerevisiae Origin Recognition Complex Free and Bound to DNA Using a Novel Nanoscale Biopointer

, 2004
The Saccharomyces cerevisiae origin recognition complex (ORC) is composed of six subunits and is an essential component in the assembly of the replication apparatus.
Bowers, Jayson L., Chastain II, Paul D., Griffith, Jack D., Lee, Daniel G., Bell, Stephen P.   +4 more
core   +1 more source

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

FEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson, Tomáš Gedeon, Mauricio Garcia Benitez, Campbell Putnam, William R. Harcombe, Radhakrishnan Mahadevan, Ashley E. Beck   +6 more
wiley   +1 more source

Diversity and evolution of Amazonian birds: implications for conservation and biogeography

Anais da Academia Brasileira de Ciências
: Amazonia has been a focus of interest since the early days of biogeography as an intrinsically complex and extremely diverse region. This region comprises an intricate mosaic that includes diverse types of forest formations, flooded environments and ...
CAMILA C. RIBAS, ALEXANDRE ALEIXO
doaj   +1 more source

Structure of the archaeal Cascade subunit Csa5 : Relating the small subunits of CRISPR effector complexes

, 2013
This work was funded by a grant from the Biotechnology and Biological Sciences Research Council (BBSRC) (REF: BB/G011400/1) to M.F.W. and J.H.N. and a BBSRC-funded studentship to J.R.The Cascade complex for CRISPR-mediated antiviral immunity uses CRISPR ...
Naismith, Jim, White, Malcolm F, Anderson, Linzi, Liu, Huanting, Reeks, Judith Anne, Graham, Shirley   +5 more
core   +1 more source

Electron transfer between complexes III and IV in S. cerevisiae mitochondrial membranes

FEBS Letters, EarlyView.
Mitochondrial oxidative phosphorylation in S. cerevisiae mitoplasts is limited by complex IV catalytic capacity, rather than two‐dimensional cytochrome c diffusion. At physiological cytochrome c : supercomplex ratios at salinity equivalent to that of 20 mm monovalent salt, activity is maximized, indicating that this low ionic strength accurately mimics
Ana Paula Lobez, Mikael Oliveberg, Peter Brzezinski   +2 more
wiley   +1 more source

Delayed recognition of complex staphylococcal infection in pyrexia of unknown origin

The Indian Anaesthetists' Forum, 2020
Vanita Ahuja, Kavita Ramakrishna Bhagwat, Pawanpreet Kaur, Karanjot Gill   +3 more
doaj   +1 more source

AlphaFold-guided phylogenetic analyses suggest surprising heterogeneity in metazoan replication origin licensing mechanisms

The EMBO Journal
DNA replication initiation is a tightly regulated process that requires the coordinated assembly of replication machineries throughout the genome. During the first step of initiation, origin licensing, the MCM replicative helicase motor is loaded onto ...
Olivia Hunker, Franziska Bleichert
doaj   +1 more source