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Evidence of isochorismate channeling between the Escherichia coli enterobactin biosynthetic enzymes EntC and EntB

Author(s): Bin X; Pawelek PD;

Enterobactin is a high-affinity iron chelator produced and secreted by Escherichia coli and Salmonella typhimurium to scavenge scarce extracellular Fe3+ as a micronutrient. EntC and EntB are the first two enzymes in the enterobactin biosynthetic pathway. Is ...

Article GUID: 39031458


New Megastigmane and Polyphenolic Components of Henna Leaves and Their Tumor-Specific Cytotoxicity on Human Oral Squamous Carcinoma Cell Lines

Author(s): Orabi MAA; Orabi EA; Awadh AAA; Alshahrani MM; Abdel-Wahab BA; Sakagami H; Hatano T;

Polyphenols have a variety of phenolic hydroxyl and carbonyl functionalities that enable them to scavenge many oxidants, thereby preserving the human redox balance and preventing a number of oxidative stress-related chronic degenerative diseases. In our ong ...

Article GUID: 38001804


Structural determination and anticholinesterase assay of C-glycosidic ellagitannins from Lawsonia inermis leaves: A study supported by DFT calculations and molecular docking

Author(s): Orabi MAA; Orabi EA; Abdel-Sattar ES; English AM; Hatano T; Elimam H;

An ellagitannin monomer, lythracin M (1), and a dimer, lythracin D (2), along with eight known monomers (3-10) were isolated from Lawsonia inermis (Lythraceae) leaves. Lythracin M (1) is a C-glycosidic ellagitannin with a flavogallonyl dilactone moiety that ...

Article GUID: 36423882


Evidence of an intracellular interaction between the Escherichia coli enzymes EntC and EntB and identification of a potential electrostatic channeling surface

Author(s): Ouellette S; Pakarian P; Bin X; Pawelek PD;

Siderophores are high-affinity small-molecule chelators employed by bacteria to acquire iron from the extracellular environment. The Gram-negative bacterium Escherichia coli synthesizes and secretes enterobactin, a tris-catechol siderophore. Enterobactin is ...

Article GUID: 35952947


Identifying potential drug targets and candidate drugs for COVID-19: biological networks and structural modeling approaches

Author(s): Selvaraj G; Kaliamurthi S; Peslherbe GH; Wei DQ;

ackground: Coronavirus (CoV) is an emerging human pathogen causing severe acute respiratory syndrome (SARS) around the world. Earlier identification of biomarkers for SARS can facilitate detection and reduce the mortality rate of the disease. Thus, by integ ...

Article GUID: 33968364


Angiotensin-I-Converting Enzyme Inhibitory Activity of Coumarins from Angelica decursiva.

Author(s): Ali MY, Seong SH, Jung HA, Choi JS

Molecules. 2019 Oct 31;24(21): Authors: Ali MY, Seong SH, Jung HA, Choi JS

Article GUID: 31683604


Umbelliferone derivatives exert neuroprotective effects by inhibiting monoamine oxidase A, self-amyloidβ aggregation, and lipid peroxidation.

Author(s): Seong SH, Ali MY, Jung HA, Choi JS

Bioorg Chem. 2019 Sep 18;92:103293 Authors: Seong SH, Ali MY, Jung HA, Choi JS

Article GUID: 31557622


Virtual screening, docking, and dynamics of potential new inhibitors of dihydrofolate reductase from Yersinia pestis.

Author(s): Bastos Lda C, de Souza FR, Guimarães AP, Sirouspour M, Cuya Guizado TR, Forgione P, Ramalho TC, França TC

J Biomol Struct Dyn. 2016 Oct;34(10):2184-98 Authors: Bastos Lda C, de Souza FR, Guimarães AP, Sirouspour M, Cuya Guizado TR, Forgione P, Ramalho TC, França TC

Article GUID: 26494420


Mechanistic studies of new oximes reactivators of human butyryl cholinesterase inhibited by cyclosarin and sarin.

Author(s): de Lima WE, Francisco A, da Cunha EF, Radic Z, Taylor P, França TC, Ramalho TC

J Biomol Struct Dyn. 2017 May;35(6):1272-1282 Authors: de Lima WE, Francisco A, da Cunha EF, Radic Z, Taylor P, França TC, Ramalho TC

Article GUID: 27125569


Flavanone glycosides inhibit β-site amyloid precursor protein cleaving enzyme 1 and cholinesterase and reduce Aβ aggregation in the amyloidogenic pathway.

Author(s): Ali MY, Jannat S, Edraki N, Das S, Chang WK, Kim HC, Park SK, Chang MS

Chem Biol Interact. 2019 Jun 10;: Authors: Ali MY, Jannat S, Edraki N, Das S, Chang WK, Kim HC, Park SK, Chang MS

Article GUID: 31194956


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