• An Ubl modification requires several

  2021-01-14

  

  An Ubl modification requires several steps that are catalyzed by three enzymes, referred to as E1 (activating enzyme), E2 (conjugation enzyme), and E3 (ligase). The SUMO E1 is a heterodimer of SAE1 and Uba2 (also known as SAE2). In brief, an Ubl is first activated by E1 through ATP hydrolysis and fo

• Interestingly our analyses of human PBMCs using

  2021-01-13

  

  Interestingly, our analyses of human PBMCs using a monoclonal antibody against EBI2 showed that the expression pattern of human EBI2 is largely overlapping with that in mice. Especially Th17 HC-030031 showed homogeneous high expression of EBI2 compared with Th1 cells, which contained a fraction of

• br Conflicts of interest br Acknowledgements This work was s

  2021-01-13

  

  Conflicts of interest Acknowledgements This work was supported by the Swiss National Science Foundation No 31003A-179400 to AO. We thank Dr. Thierry Langer, University of Vienna and Inte:Ligand GmbH, for providing the LigandScout Software, and Dr. Daniela Schuster, Paracelsus Medical Universit

• Some family I DNA ligases can use dATP

  2021-01-13

  

  Some family I DNA ligases can use dATP as nucleotide cofactor. For instance, human Berberine Sulfate I uses dATP with a catalytic efficiency that is only 36-fold lower in comparison to ATP [9]. EhDNAlig is unable to use dATP as a nucleotide cofactor, indicating a more constrained active site in com

• br Concluding remarks A crucial step in

  2021-01-13

  

  Concluding remarks A crucial step in the microbial degradation of steroids is the 1(2)-dehydrogenation of the steroid nucleus by FAD-dependent Δ1-KSTDs. This step is required to initiate the opening of the steroid nucleus under both aerobic and anaerobic conditions. A large variety of steroid-deg

• In mammals ribonucleotide reductase RNR is a

  2021-01-13

  

  In mammals, ribonucleotide reductase (RNR) is a unique enzyme that catalyzes the rate-limiting step of de novo synthesis of deoxyribonucleoside triphosphates (dNTPs).7, 8 Mammalian RNR consists of two homodimer subunits: the large catalytic dimer RRM1 and the small regulatory dimer RRM2 or RRM2B. An

• A major open question in the field of lipid mediators

  2021-01-12

  

  A major open question in the field of lipid mediators is the molecular nature of the PLA2 enzyme involved in the release of DHA and related omega-3 fatty acids from phospholipids as a first committed step for the generation of SPMs. Although by analogy with AA it is often assumed that cPLA2α may ser

• PKA signalling in the nucleus was thought to be due

  2021-01-12

  

  PKA signalling in the nucleus was thought to be due to the translocation of the catalytic subunit upon activation from the KJ Pyr 9 to the nucleus via diffusion [72]. However, a new understanding has emerged, as both the regulatory and catalytic subunits have been identified in the nucleus and func

• To study the effect of DDR inhibition by

  2021-01-12

  

  To study the effect of DDR inhibition by imatinib, nilotinib and dasatinib in a cellular environment we generated DDR1 and DDR2 expressing HEK293 cell lines by stable transfection. Of the five DDR1 splice variants we focused on the 1b variant whose over-expression has been associated with pulmonary

• In our recent study we established a procedure

  2021-01-12

  

  In our recent study, we established a procedure to examine the chromatin binding of XRCC4 using a biochemical fractionation analysis using a detergent Nonidet P-40 [22]. In this study, we investigated the role of LIG4 and its subdomains in the recruitment of XRCC4/LIG4 complex to chromatin. Mater

• To understand more clearly how these

  2021-01-12

  

  To understand more clearly how these activities are combined in the heterotrimeric enzyme and to understand more clearly how DNA alkylation might effect DNA helicase activity, we summarize the relevant features of the structure of RecBCD determined in the presence of DNA. The RecB and RecC subunits

• Pulmonary fibroblasts can regulate the

  2021-01-12

  

  Pulmonary fibroblasts can regulate the wound healing process by secreting and processing extracellular matrix (ECM), chemokines, and cytokines. However, persistent and atypical fibroblast proliferation can result in ECM accumulation and may trigger the onset or development of pulmonary fibrosis [[17

• These cytokines except for TGF can also increase CysLT

  2021-01-12

  

  These cytokines, except for TGF-β can also increase CysLT1R mRNA expression. We further demonstrated that TGF-β and IL-13 were able to increase the proliferation of human BSMC in response to LTD4. BSMC proliferation was CysLT1R-dependent, given that Montelukast ablated this effect. Taken together, o

• Western blotting Western blotting was performed

  2021-01-12

  

  Western blotting: Western blotting was performed following the standard protocol as previously described [16]. All the images were collected using the Odyssey Fc imaging system (Li-COR Biosciences). In vitro kinase assays were performed on ∼1 μg of purified CDK5/p35 complex in 30 μL of kinase buffe

• Under conditions of energy scarcity or nutritional restricti

  2021-01-12

  

  Under conditions of energy scarcity or nutritional restriction, AMPK, a critical energy sensor, is activated in response to the increased ratio of AMP to ATP. Various kinases may phosphorylate AMPK, leading to its activation. For example, AMPK phosphorylation by liver kinase B 1 (LKB1) at Thr172 res

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