Influence of intermolecular interactions on the formation of spontaneous orientation polarization in organic semiconducting films

2020 ◽  
Author(s):  
Yutaka Noguchi ◽  
Kohei Osada ◽  
Kaito Ninomiya ◽  
Hewa D.C.N. Gunawardana ◽  
Kaveenga R. Koswattage ◽  
...  
Keyword(s):  
Intermolecular Interactions ◽  
Orientation Polarization

A Possible Modulation Mechanism of Intramolecular and Intermolecular Interactions for NCAM Polysialylation and Cell Migration

2019 ◽  
Vol 19 (25) ◽  
pp. 2271-2282 ◽  
Author(s):  
Bo Lu ◽  
Xue-Hui Liu ◽  
Si-Ming Liao ◽  
Zhi-Long Lu ◽  
Dong Chen ◽  
...  
Keyword(s):  
Cell Migration ◽  
Intermolecular Interactions ◽  
Mammalian Cells ◽  
Molecular Mechanisms ◽  
Intramolecular Interaction ◽  
Polysialic Acid ◽  
Tumor Cell Migration ◽  
Neural Cell Adhesion ◽  
Polybasic Domains ◽  
Novel Model

Polysialic acid (polySia) is a novel glycan that posttranslationally modifies neural cell adhesion molecules (NCAMs) in mammalian cells. Up-regulation of polySia-NCAM expression or NCAM polysialylation is associated with tumor cell migration and progression in many metastatic cancers and neurocognition. It has been known that two highly homologous mammalian polysialyltransferases (polySTs), ST8Sia II (STX) and ST8Sia IV (PST), can catalyze polysialylation of NCAM, and two polybasic domains, polybasic region (PBR) and polysialyltransferase domain (PSTD) in polySTs play key roles in affecting polyST activity or NCAM polysialylation. However, the molecular mechanisms of NCAM polysialylation and cell migration are still not entirely clear. In this minireview, the recent research results about the intermolecular interactions between the PBR and NCAM, the PSTD and cytidine monophosphate-sialic acid (CMP-Sia), the PSTD and polySia, and as well as the intramolecular interaction between the PBR and the PSTD within the polyST, are summarized. Based on these cooperative interactions, we have built a novel model of NCAM polysialylation and cell migration mechanisms, which may be helpful to design and develop new polysialyltransferase inhibitors.

scholarly journals Investigation on the intermolecular interactions in aliphatic isocyanurate liquids: revealing the importance of dispersion

2019 ◽  
Vol 280 ◽  
pp. 25-33 ◽  
Author(s):  
Veniero Lenzi ◽  
Piet J. Driest ◽  
Dirk J. Dijkstra ◽  
Marta M.D. Ramos ◽  
Luís S.A. Marques
Keyword(s):  
Intermolecular Interactions
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