Results 81 to 90 of about 27,627 (205)
Three-dimensional structure of a ubiquitin-conjugating enzyme (E2).
The x-ray crystal structure of a recombinant ubiquitin-conjugating enzyme (E2) encoded by the UBC1 gene of the plant Arabidopsis thaliana has been determined with the use of multiple isomorphous replacement techniques and refined at 2.4-A resolution by simulated annealing and restrained least-squares.
R.D. Vierstra+3 more
openaire +3 more sources
Single-substrate Enzyme Kinetics: The Quasi-steady-state Approximation and Beyond [PDF]
We analyze the standard model of enzyme-catalyzed reactions at various substrate-enzyme ratios to identify the regions of validity of the quasi-steady-state approximation. Certain prevalent conditions are checked and compared against the actual findings. Efficacies of a few other measures are highlighted. Some very recent observations are rationalized,
arxiv
Effective inter-symbol interference mitigation with a limited amount of enzymes in molecular communications [PDF]
In molecular communication via diffusion (MCvD), the inter-symbol interference (ISI) is a well known severe problem that deteriorates both data rates and link reliability. ISI mainly occurs due to the slow and highly random propagation of the messenger molecules, which causes the emitted molecules from the previous symbols to interfere with molecules ...
arxiv
Structures, Functions, and Mechanisms of Filament Forming Enzymes: A Renaissance of Enzyme Filamentation [PDF]
Filament formation by non-cytoskeletal enzymes has been known for decades, yet only relatively recently has its wide-spread role in enzyme regulation and biology come to be appreciated. This comprehensive review summarizes what is known for each enzyme confirmed to form filamentous structures in vitro, and for the many that are known only to form large
arxiv
Legionella effector MavC targets the Ube2N~Ub conjugate for noncanonical ubiquitination
The Legionella pneumophila effector MavC inhibits the human ubiquitin-conjugating enzyme Ube2N. Here, the authors combine NMR, X-ray crystallography and biochemical assays and show that MavC catalyses the intramolecular transglutaminase reaction between ...
Kedar Puvar+8 more
doaj +1 more source
Identification of functionally related enzymes by learning-to-rank methods [PDF]
Enzyme sequences and structures are routinely used in the biological sciences as queries to search for functionally related enzymes in online databases. To this end, one usually departs from some notion of similarity, comparing two enzymes by looking for correspondences in their sequences, structures or surfaces. For a given query, the search operation
arxiv
Nowadays potential preclinical drugs for the treatment of nonalcoholic steatohepatitis (NASH) have failed to achieve expected therapeutic efficacy because the pathogenic mechanisms are underestimated.
Minxuan Xu+17 more
doaj
Optimized protocol to detect protein UFMylation in cells and in vitro via immunoblotting
Summary: Ubiquitin-fold modifier 1 (UFM1) system is a recently identified ubiquitin-like modification with essential biological functions. Similar to ubiquitination, the covalent conjugation of UFM1 (UFMylation) to target proteins involves a three-step ...
Junzhi Zhou+8 more
doaj
Role of RING-Type E3 Ubiquitin Ligases in Inflammatory Signalling and Inflammatory Bowel Disease
Ubiquitination is a three-step enzymatic cascade for posttranslational protein modification. It includes the ubiquitin-activating enzyme (E1), ubiquitin-conjugating enzyme (E2), and ubiquitin ligase (E3).
Liguo Zhu+7 more
doaj +1 more source
Introduction: IgA nephropathy (IgAN) is a leading cause of end-stage renal disease. The exact pathogenesis of IgAN is not well defined, but some genetic studies have led to a novel discovery that the (immuno)proteasome probably plays an important role in
Lin-Lin Xu+8 more
doaj +1 more source