排序方式: 共有7条查询结果,搜索用时 0 毫秒
1
1.
2.
Solgi Mehri Khazaei Ardeshir Akbarpour Tahereh 《Research on Chemical Intermediates》2022,48(6):2443-2468
Research on Chemical Intermediates - In the present study, magnetic nanocatalysts coated by carbon quantum dots (CQDs) and organic functional groups (Fe3O4@CQD@Si(OEt)(CH2)3@melamine@TC@Ni(NO3))... 相似文献
3.
Surface Arginine Saturation Effect on Unfolding Reaction of Firefly Luciferase: A Thermodynamic and Kinetic Perspective 下载免费PDF全文
Zahra Solgi Khosrow Khalifeh Saman Hosseinkhani Bijan Ranjbar 《Photochemistry and photobiology》2016,92(5):688-693
Replacement of some hydrophobic solvent‐exposed residues in Lampyris turkestanicus luciferase with arginine increases thermostability of this enzyme. Herein, thermodynamic and kinetic of unfolding reactions of wild type (WT), E354R/356R, E354R/356R‐I232R and E354R/356R‐Q35R/L182R/I232R variants, has been investigated. Fluorescence and Far‐UV circular dichroism measurements using urea as a chemical denaturant indicated that the value of for all variants is greater than that of WT enzyme. Analysis of m‐values, as a measure of difference in the solvent accessible surface area between the native and denatured states of protein, revealed that higher stability of mutants is related to their higher degree of compactness in the folded state. Results of unfolding kinetic experiments showed that all variants have three‐exponential behavior in which they unfolded with three rate constants and corresponding amplitudes. Increasing the rate constants of fast unfolding phase in mutants relative to WT protein may be attributed to more compactness and more kinetic sensitivity of their folded state to urea. However, more population of WT protein was unfolded from fast unfolding phase. Results of this investigation highlight kinetic stability of luciferase via a slow rate of unfolding. 相似文献
4.
Crystallography Reports - Some important nonlinear optical crystal families in three spectral regions (DUV-FIR) have been discussed with reference to their anionic groups. In the M–F–IR... 相似文献
5.
Issa Yavari Raziyeh Solgi Aliyeh Khajeh‐Khezri Mohammad Askarian‐Amiri Mohammad Reza Halvagar 《Journal of heterocyclic chemistry》2019,56(12):3396-3402
Functionalized spiroindolo[2,1‐b]quinazolines are obtained from the reaction between tryptanthrin‐malononitrile adducts and Huisgen zwitterionic intermediates, generated by addition reaction of aromatic N‐heterocycles with acetylenic esters. The reaction is diastereoselective leading to the formation of a single diastereoisomer. The structure of a typical product established by X‐ray crystallography. 相似文献
6.
Issa Yavari Salome AhmadianMajid Ghazanfarpur-Darjani Yazdan Solgi 《Tetrahedron letters》2011,52(6):668-670
A copper-catalyzed synthesis of N-sulfonylamidines via three-component coupling of sulfonyl azides, terminal alkynes, and trialkylamines is reported. 相似文献
7.
Issa Yavari Majid Ghazanfarpour‐Darjani Yazdan Solgi Salomeh Ahmadian 《Helvetica chimica acta》2011,94(4):639-642
An efficient synthesis of functionalized 2‐(1,3‐oxathiolan‐2‐ylidene)malononitriles containing a push‐pull C?C bond via a simple reaction between malononitrile, CS2, and oxiranes in the presence of Et3N is described (Scheme 1). 相似文献
1