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Once a cyclic peptide is identified with a biological activity of interest, it may also be possible to identify the target of the peptide (a gene that encodes a protein with which it interacts) by functional complementation, facilitating a better understanding of its mechanism of action.
The cyclic peptide NR58-3.14.3 was shown to be a powerful anti-inflammatory agent in vivo inhibiting inflammation in a number of disease models such as atherosclerosis, [4] ischemia, [5] [6] [7] lung disease, [8] surgical adhesions, [9] endometriosis [10] and pulmonary graft-versus-host disease. [11]
Crystal structure of an extracellular segment of integrin alphaVbeta3 complexed with a cyclic peptide containing the arginyl-glycyl-aspartic acid (RGD) sequence. RGD is shown in maroon. CEND-1, also known as iRGD , is a cyclic peptide that homes to tumors via binding to integrin alpha V receptors. [ 22 ]
Macromolecular docking is the computational modelling of the quaternary structure of complexes formed by two or more interacting biological macromolecules. Protein –protein complexes are the most commonly attempted targets of such modelling, followed by protein– nucleic acid complexes.
The goal of protein–ligand docking is to predict the position and orientation of a ligand (a small molecule) when it is bound to a protein receptor or enzyme. [1] Pharmaceutical research employs docking techniques for a variety of purposes, most notably in the virtual screening of large databases of available chemicals in order to select ...
α-Amanitin Bacitracin Ciclosporin. Cyclic peptides are polypeptide chains which contain a circular sequence of bonds. [1] This can be through a connection between the amino and carboxyl ends of the peptide, for example in cyclosporin; a connection between the amino end and a side chain, for example in bacitracin; the carboxyl end and a side chain, for example in colistin; or two side chains ...
Ben Tarver, 29, began having seizures and panic attacks in September before exhibiting symptoms of paranoia. By the middle of October, he was diagnosed with Anti-NMDA Receptor Encephalitis, a rare ...
During the course of the docking process, the ligand and the protein adjust their conformation to achieve an overall "best-fit" and this kind of conformational adjustment resulting in the overall binding is referred to as "induced-fit". [5] Molecular docking research focuses on computationally simulating the molecular recognition process.