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排序方式: 共有503条查询结果,搜索用时 281 毫秒
411.
Miguel O. Surez-Barrera Lydia Visser Paola Rondn-Villarreal Diego F. Herrera-Pineda Juan S. Alarcn-Aldana Anke Van den Berg Jahir Orozco Efraín H. Pinzn-Reyes Ernesto Moreno Nohora J. Rueda-Forero 《Molecules (Basel, Switzerland)》2021,26(24)
Bacillus thuringiensis (Bt) is a bacterium capable of producing Cry toxins, which are recognized for their bio-controlling actions against insects. However, a few Bt strains encode proteins lacking insecticidal activity but showing cytotoxic activity against different cancer cell lines and low or no cytotoxicity toward normal human cells. A subset of Cry anticancer proteins, termed parasporins (PSs), has recently arisen as a potential alternative for cancer treatment. However, the molecular receptors that allow the binding of PSs to cells and their cytotoxic mechanisms of action have not been well established. Nonetheless, their selective cytotoxic activity against different types of cancer cell lines places PSs as a promising alternative treatment modality. In this review, we provide an overview of the classification, structures, mechanisms of action, and insights obtained from genetic modification approaches for PS proteins. 相似文献
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Frank Würthner Anke Krüger Rainer Herges Klaus Ditrich Henning Priepke Roland Pfau Stefan Brse Andreas Kirschning Norbert Sewald Mathias O. Senge Thomas J. J. Müller Thorsten Bach Heinrich Heydt Jens Hartung Peter R. Schreiner Ruth Cschwind Dietmar A. Plattner Bernd Goldfuß Bernd Coldfuß Bernd Coldfuß Andreas Cansuer Martin Oestreich J
rg Pietruszka Thomas Lindel Roderich Süßmuth Michael Müller Elmar Weinhold Andres Jschke Markus Albrecht Uwe Beifuss 《Nachrichten aus der Chemie》2004,52(3):267-291
415.
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Stefan G. Ebbinghaus Jan Hanss Anke Weidenkaff Andreas Kalytta R. J. Cava 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(5):i35-i37
Crystals of titanium‐doped distrontium ruthenium tetraoxide, Sr2Ru1−xTixO4, with x = 0.07 and 0.19, were grown by floating‐zone melting, and their structures were solved using single‐crystal X‐ray diffraction. Increasing Ti content leads to a distinctive systematic variation of cell parameters and interatomic distances with respect to the undoped material. 相似文献
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Timo Mangel Anke Eberhardt Ullrich Scherf Uwe H. F. Bunz Klaus Müllen 《Macromolecular rapid communications》1995,16(8):571-580
The synthesis and the optical properties of the novel aryleneethynylenes ( 7 , 8 ) and arylenebutadiynylenes ( 10 , 11 ) using either a Heck-type or a Hay-type coupling are reported. The route reported here also makes meta-linked arylene-alkynylenes accessible. The number-average degree of polymerization of the obtained polymers is between 13 and 60. Some of the materials show promising optical properties (photoluminescence). 相似文献
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Dr. Markus Joksch Dr. Hemlata Agarwala Dr. Monica Ferro Dr. Dirk Michalik Dr. Anke Spannenberg Priv.-Doz. Dr. Torsten Beweries 《Chemistry (Weinheim an der Bergstrasse, Germany)》2020,26(16):3571-3577
The thermodynamics of halogen bonding of a series of isostructural Group 10 metal pincer fluoride complexes of the type [(3,5-R2-tBuPOCOPtBu)MF] (3,5-R2-tBuPOCOPtBu=κ3-C6HR2-2,6-(OPtBu2)2 with R=H, tBu, COOMe; M=Ni, Pd, Pt) and iodopentafluorobenzene was investigated. Based on NMR experiments at different temperatures, all complexes 1-tBu (R=tBu, M=Ni), 2-H (R=H, M=Pd), 2-tBu (R=tBu, M=Pd), 2-COOMe (R=COOMe, M=Pd) and 3-tBu (R=tBu, M=Pt) form strong halogen bonds with Pd complexes showing significantly stronger binding to iodopentafluorobenzene. Structural and computational analysis of a model adduct of complex 2-tBu with 1,4-diiodotetrafluorobenzene as well as of structures of iodopentafluorobenzene in toluene solution shows that formation of a type I contact occurs. 相似文献