Canonical or noncanonical? Structural plasticity of serine protease-binding loops in Kunitz-STI protease inhibitors. [PDF]
AbstractThe Kunitz‐Soybean Trypsin Inhibitor (Kunitz‐STI) family is a large family of proteins with most of its members being protease inhibitors. The versatility of the inhibitory profile and the structural plasticity of these proteins, make this family a promising scaffold for designing new multifunctional proteins.
Guerra Y+4 more
europepmc +7 more sources
Structures of a bi-functional Kunitz-type STI family inhibitor of serine and aspartic proteases: Could the aspartic protease inhibition have evolved from a canonical serine protease-binding loop? [PDF]
Bi-functional inhibitors from the Kunitz-type soybean trypsin inhibitor (STI) family are glycosylated proteins able to inhibit serine and aspartic proteases. Here we report six crystal structures of the wild-type and a non-glycosylated mutant of the bifunctional inhibitor E3Ad obtained at different pH values and space groups.
Guerra, Yasel+4 more
semanticscholar +6 more sources
Crystal Structure of Crataeva tapia Bark Protein (CrataBL) and Its Effect in Human Prostate Cancer Cell Lines. [PDF]
A protein isolated from the bark of Crataeva tapia (CrataBL) is both a Kunitz-type plant protease inhibitor and a lectin. We have determined the amino acid sequence and three-dimensional structure of CrataBL, as well as characterized its selected ...
Ferreira Rda S+12 more
europepmc +2 more sources
Background: Proteases play an important role for the proper physiological functions of the most diverse organisms. When unregulated, they are associated with several pathologies.
R. Kodama+9 more
semanticscholar +1 more source
In silico identification of potential natural product inhibitors of human proteases key to SARS-CoV-2 infection [PDF]
Presently, there are no approved drugs or vaccines to treat COVID-19 which has spread to over 200 countries and is responsible for over 3,65,000 deaths worldwide. Recent studies have shown that two human proteases, TMPRSS2 and cathepsin L, play a key role in host cell entry of SARS-CoV-2.
arxiv +1 more source
Evolutionary Multi-Objective Design of SARS-CoV-2 Protease Inhibitor Candidates [PDF]
Computational drug design based on artificial intelligence is an emerging research area. At the time of writing this paper, the world suffers from an outbreak of the coronavirus SARS-CoV-2. A promising way to stop the virus replication is via protease inhibition.
arxiv +1 more source
Myelodysplastic syndromes (MDS) are clonal disorders involving hematopoietic stem cells (HSC) characterized by ineffective hematopoiesis. In addition to HSC defects, a defective hematopoiesis supporting capacity of mesenchymal stromal cells (MSCs) in the
F. M. Roversi+12 more
semanticscholar +1 more source
Predictability of IL-28B-polymorphism on protease-inhibitor-based triple-therapy in chronic HCV-genotype-1 patients: A meta-analysis [PDF]
AIM: To investigate the predictability of interleukin-28B single nucleotide polymorphism rs12979860 with respect to sustained virological response (SVR) in chronically hepatitis C virus (HCV) genotype-1 patients treated with a protease-inhibitor and pegylated interferon-$\alpha$ (Peg-INF-$\alpha$) based triple-therapy.
arxiv +1 more source
A Novel Framework Integrating AI Model and Enzymological Experiments Promotes Identification of SARS-CoV-2 3CL Protease Inhibitors and Activity-based Probe [PDF]
The identification of protein-ligand interaction plays a key role in biochemical research and drug discovery. Although deep learning has recently shown great promise in discovering new drugs, there remains a gap between deep learning-based and experimental approaches.
arxiv +1 more source
Ticks are strict hematophagous arthropods and are the most important vectors of pathogens affecting both domestic and wild animals worldwide. Moreover, they are second only to mosquitoes as vectors of human pathogens.
Adrien A Blisnick+11 more
semanticscholar +1 more source