Ferrioxamine transport mutants and the identification of the ferrioxamine receptor protein (FoxA) inErwinia herbicola (Enterobacter agglomerans)

1990 ◽  
Vol 2 (4) ◽  
pp. 197-202 ◽  
Author(s):  
Ingrid Berner ◽  
G�nther Winkelmann
Keyword(s):  
Receptor Protein ◽  
Enterobacter Agglomerans ◽  
Transport Mutants ◽  
Ferrioxamine Receptor

Evaluation of Grey Wolf Optimization Algorithm on Rigid and Flexible Receptor Docking

2020 ◽  
Author(s):  
Kin Meng Wong ◽  
Shirley Siu
Keyword(s):  
Scoring Function ◽  
Ligand Docking ◽  
Receptor Protein ◽  
Pose Prediction ◽  
Grey Wolf ◽  
Success Rates ◽  
Autodock Vina ◽  
Grey Wolf Optimization ◽  
Structure Based Drug Design ◽  
Docking Program

Protein-ligand docking programs are indispensable tools for predicting the binding pose of a ligand to the receptor protein in current structure-based drug design. In this paper, we evaluate the performance of grey wolf optimization (GWO) in protein-ligand docking. Two versions of the GWO docking program – the original GWO and the modified one with random walk – were implemented based on AutoDock Vina. Our rigid docking experiments show that the GWO programs have enhanced exploration capability leading to significant speedup in the search while maintaining comparable binding pose prediction accuracy to AutoDock Vina. For flexible receptor docking, the GWO methods are competitive in pose ranking but lower in success rates than AutoDockFR. Successful redocking of all the flexible cases to their holo structures reveals that inaccurate scoring function and lack of proper treatment of backbone are the major causes of docking failures.

Lack of Sumatriptan-Induced Aortic Contraction or Relaxation: 5-HT 1B Receptor Protein Detected in Endothelium and Smooth Muscle of Vasa Vasorum but Not Aorta

2002 ◽  
Vol 8 (2) ◽  
pp. 71-78 ◽  
Author(s):  
Marlene L. Cohen ◽  
Elizabeth J. Galbreath ◽  
Kathryn W. Schenck ◽  
Danqing Li ◽  
Beth J. Hoffman ◽  
...  
Keyword(s):  
Smooth Muscle ◽  
Vasa Vasorum ◽  
Receptor Protein ◽  
Aortic Contraction

Effect of taste receptor protein T1R3 on the development of islet tissue of the murine pancreas

2019 ◽  
Vol 484 (1) ◽  
pp. 117-120
Author(s):  
V. O. Murovets ◽  
E. A. Sozontov ◽  
T. G. Zachepilo
Keyword(s):  
Parent Strain ◽  
Gene Knockout ◽  
Taste Receptor ◽  
Morphological Characteristics ◽  
Sweet Taste ◽  
Pancreatic Tissue ◽  
Receptor Protein ◽  
Gene Encoding ◽  
Islet Tissue ◽  
Knockout Animals

Protein T1R3, the main subunit of sweet, as well as amino acid, taste receptor, is expressed in the epithelium of the tongue and gastro intestinal tract, in β–cells of the pancreas, hypothalamus, and numerous other organs. Recently, convincing witnesses of T1R3 involvement in control of carbohydrate and lipid metabolism, and control of production of incretines and insulin, have been determined. In the study on Tas1r3-gene knockout mouse strain and parent strain C57Bl/6J as control, priority data concerning the effect of T1R3 on the morphological characteristics of Langerhans islets in the pancreas, are obtained. In Tas1r3 knockout animals, it is found that the size of the islets and their density in pancreatic tissue are reduced, as compared to the parent strain. Additionally, a decrease of expression of active caspase-3 in islets of gene-knockouts is demonstrated. The obtained data show that the lack of a functional, gene encoding sweet-taste receptor protein causes a dystrophy of the islet tissue and associates to the development of pathological changes in the pancreas specific to type-2 diabetes and obesity in humans.

Design, Synthesis and Docking Studies of Some Novel Fluoroquinolone Compounds with Antibacterial Activity

2018 ◽  
Vol 69 (4) ◽  
pp. 815-822 ◽  
Author(s):  
Lucia Pintilie ◽  
Amalia Stefaniu ◽  
Alina Ioana Nicu ◽  
Maria Maganu ◽  
Miron Teodor Caproiu
Keyword(s):  
Antimicrobial Activity ◽  
Antibacterial Activity ◽  
Molecular Docking ◽  
Drug Discovery ◽  
Elemental Analysis ◽  
Docking Studies ◽  
Receptor Protein ◽  
Chemical Methods ◽  
Design Synthesis ◽  
Gram Negative

A new series of fluoroquinolone compounds have been obtained by Gould-Jacobs method. The compounds have been characterized by physic-chemical methods (elemental analysis, FTIR, NMR, UV-Vis) and by antimicrobial activity against Gram-positive and Gram-negative microorganisms. For the synthesized compounds have been performed calculations of characteristics and molecular properties, using Spartan�14 Software from Wavefunction, Inc. Irvine, CA. and molecular docking studies using CLC Drug Discovery Workbench 2.4 software, to identify and visualize the most likely interaction ligand (fluoroquinolone) with the receptor protein.

Natural Products: Experimental Efficient Agents for Inflammatory Bowel Disease Therapy

2020 ◽  
Vol 25 (46) ◽  
pp. 4893-4913 ◽  
Author(s):  
Fan Cao ◽  
Jie Liu ◽  
Bing-Xian Sha ◽  
Hai-Feng Pan
Keyword(s):  
Inflammatory Bowel Disease ◽  
Natural Products ◽  
Immune System ◽  
Bowel Disease ◽  
Therapeutic Potential ◽  
Adaptive Immune System ◽  
Receptor Protein ◽  
Intestinal Epithelia ◽  
Inflammatory Bowel ◽  
The Individual

: Inflammatory bowel disease (IBD) is a chronic, elusive disorder resulting in relapsing inflammation of intestine with incompletely elucidated etiology, whose two representative forms are ulcerative colitis (UC) and Crohn’s disease (CD). Accumulating researches have revealed that the individual genetic susceptibility, environmental risk elements, intestinal microbial flora, as well as innate and adaptive immune system are implicated in the pathogenesis and development of IBD. Despite remarkable progression of IBD therapy has been achieved by chemical drugs and biological therapies such as aminosalicylates, corticosteroids, antibiotics, anti-tumor necrosis factor (TNF)-α, anti-integrin agents, etc., healing outcome still cannot be obtained, along with inevitable side effects. Consequently, a variety of researches have focused on exploring new therapies, and found that natural products (NPs) isolated from herbs or plants may serve as promising therapeutic agents for IBD through antiinflammatory, anti-oxidant, anti-fibrotic and anti-apoptotic effects, which implicates the modulation on nucleotide- binding domain (NOD) like receptor protein (NLRP) 3 inflammasome, gut microbiota, intestinal microvascular endothelial cells, intestinal epithelia, immune system, etc. In the present review, we will summarize the research development of IBD pathogenesis and current mainstream therapy, as well as the therapeutic potential and intrinsic mechanisms of NPs in IBD.

Insilico Analysis of Post-Translational Modifications in DRD2 Receptor Protein in Schizophrenic Patients

2017 ◽  
Vol 14 (1) ◽  
pp. 53-57
Author(s):  
Afshan Wasti ◽  
Nikhat Ahmed ◽  
Hajira Karim ◽  
Amna Ahmed ◽  
Ayesha Khan
Keyword(s):  
Receptor Protein ◽  
Post Translational Modifications ◽  
Schizophrenic Patients
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