scholarly journals Genetic engineering of inorganic functional modular materials

2016 ◽  
Vol 7 (6) ◽  
pp. 3472-3481 ◽  
Author(s):  
Yi Li ◽  
Jihong Yu

In silicoenumeration and interpretation of the stacking sequences of layer modules facilitates the innovation of new inorganic functional materials.

3 Biotech ◽  
2020 ◽  
Vol 10 (3) ◽  
Author(s):  
Mingzhu Huang ◽  
Yue Zhao ◽  
Rong Li ◽  
Weihua Huang ◽  
Xuelan Chen

Author(s):  
Atnafu Kebede ◽  
Mulugeta Kebede

Abstract Background Potato (Solanum tuberosum L.) is one of the most important food crops in the world. Pathogens remain as one of the major constraints limiting potato productivity. Thus, understanding of gene regulation mechanism of pathogenesis-related genes such as glucan endo-1,3-beta-glucosidase is a foundation for genetic engineering of potato for disease resistance and reduces the use of fungicides. In the present study, 19 genes were selected and attempts were made through in silico methods to identify and characterize the promoter regions, regulatory elements, and CpG islands of glucan endo-1,3-beta-glucosidase gene in Solanum tuberosum cultivar DM 1-3 516 R44. Results The current analysis revealed that single transcription start sites (TSSs) were present in 12/19 (63.2%) of promoter regions analyzed. The predictive score at a cutoff value of 0.8 for the majority (84.2%) of the promoter regions ranged from 0.90 to 1.00. The locations for 42% of the TSSs were below −500 bp relative to the start codon (ATG). MβGII was identified as the common promoter motif for 94.4% of the genes with an E value of 3.5e−001. The CpG analysis showed low CpG density in the promoter regions of most of the genes except for gene ID102593331 and ID: 102595860. The number of SSRs per gene ranged from 2 to 9 with repeat lengths of 2 to 6 bp. Evolutionary distances ranged from 0.685 to 0.770 (mean = 0.73), demonstrating narrower genetic diversity range. Phylogeny was inferred using the UPGMA method, and gene sequences from different species were found to be clustered together. Conclusion In silico identified regulatory elements in promoter regions will contribute to our understanding of the regulatory mechanism of glucan endo-1,3-beta-glucosidase genes and provide a promising target for genetic engineering to improve disease resistance in potatoes.


2019 ◽  
Vol 65 (2) ◽  
pp. 152-158 ◽  
Author(s):  
R.P. Terekhov ◽  
I.A. Selivanova ◽  
A.K. Zhevlakova ◽  
Yu.B. Porozov ◽  
A.V. Dzuban

Flavonoid-mediated materials are promising substances for the design of new functional materials because of their bioactivity, eco-friendliness, and cost-effectiveness. Dihydroquercetin (DHQ) is the major flavonoid in the wood of Larix dahurica Turcz. Previously some new modifications were created on the basis of DHQ, they were characterized by different morphological, physico-chemical and biopharmaceutical properties. This study was performed to research the influence of the solvent on the formation of the solid phase in DHQ microtubes and crystal form as commercially available active pharmaceutical ingredient (API). The choice of the models for the computational simulation was based on the data of differential scanning calorimetry. All calculations were performed using Materials Science Suite. In silico analysis demonstrated that the molecules of solvent are a key player in the formation of the solid phase of the flavonoid-mediated material. Also the comparative analysis of physical characteristics between DHQ microtubes and crystal form was performed. These data give an opportunity to suggest, that DHQ microtubes may have a grate application as the dressing material and in the drug delivering. The results of this study could be helpful for the design of the new flavonoid-mediated materials by crystal engineering.


Author(s):  
Yoichi Ishida ◽  
Hideki Ichinose ◽  
Yutaka Takahashi ◽  
Jin-yeh Wang

Layered materials draw attention in recent years in response to the world-wide drive to discover new functional materials. High-Tc superconducting oxide is one example. Internal interfaces in such layered materials differ significantly from those of cubic metals. They are often parallel to the layer of the neighboring crystals in sintered samples(layer plane boundary), while periodically ordered interfaces with the two neighboring crystals in mirror symmetry to each other are relatively rare. Consequently, the atomistic features of the interface differ significantly from those of cubic metals. In this paper grain boundaries in sintered high-Tc superconducting oxides, joined interfaces between engineering ceramics with metals, and polytype interfaces in vapor-deposited bicrystal are examined to collect atomic information of the interfaces in layered materials. The analysis proved that they are not neccessarily more complicated than that of simple grain boundaries in cubic metals. The interfaces are majorly layer plane type which is parallel to the compound layer. Secondly, chemical information is often available, which helps the interpretation of the interface atomic structure.


2020 ◽  
Vol 11 (48) ◽  
pp. 7603-7624
Author(s):  
Ismail Altinbasak ◽  
Mehmet Arslan ◽  
Rana Sanyal ◽  
Amitav Sanyal

This review provides an overview of synthetic approaches utilized to incorporate the thiol-reactive pyridyl-disulfide motif into various polymeric materials, and briefly highlights its utilization to obtain functional materials.


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