共查询到20条相似文献,搜索用时 31 毫秒
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Rich PR 《Biochimica et biophysica acta》2011,1807(12):1505-1506
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Behaviours of the silane coupling agents in 1,3,5-triamino-2,4,6-trinitrobenzene (TATB)-based polymer bonded explosives (PBXs) were investigated using dissipative particle dynamics simulations. A new and extraordinary coupling mechanism of the silane coupling agent in TATB-based PBXs was revealed, in which the binding between the binders and TATB was improved by making the TATB's affinitive structure units of binders assembling at the interface, whereas the TATB's unaffinitive structure units are bonded together by the silane coupling agent shrinking into the binders. This is quite different from the traditional view, i.e. the coupling agent usually stays at the interface. 相似文献
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Journal of Mathematical Biology - Flux coupling analysis (FCA) aims to describe the functional dependencies among reactions in a metabolic network. Currently studied coupling relations are... 相似文献
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Energy coupling in chloroplasts 总被引:1,自引:0,他引:1
U. Heber 《Journal of bioenergetics and biomembranes》1976,8(3):157-172
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Most research on carbon-carbon coupling biocatalysts is still carried out on aldolases and ketolases from carbohydrate metabolism; the emphasis of these studies is on the synthesis of optically active compounds. A major target is to avoid expensive starting materials and to broaden the range of possible products. Protein engineering provides the basis not only for significant improvements of known catalysts, but also for the de novo development of new enzymes. 相似文献
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Ann R. Rittenhouse 《The Journal of general physiology》2014,143(4):443-447
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Phenoloxidase catalyzed coupling of catechols. Identification of novel coupling products. 总被引:1,自引:0,他引:1
S O Andersen J P Jacobsen G Bojesen P Roepstorff 《Biochimica et biophysica acta》1992,1118(2):134-138
Phenoloxidases from insect cuticle as well as from other sources oxidize catechols resulting in the formation of various coupling products. The two dominating products from 4-methylcatechol and the main product from N-acetyldopamine were purified and identified by means of plasma desorption and electron impact mass spectrometry and by 1H- and 13C-NMR spectroscopy. The main product from both catechols has a quinoid trihydroxybiphenyl structure, indicating oxidative coupling between a catechol and the corresponding trihydroxy derivative. The second product from 4-methylcatechol is a biphenyltetrol derivative, indicating oxidative coupling between two catechols. 相似文献
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Urs N. Pfluger Jean S. Dahl Hans U. Lutz Reinhard Bachofen 《Archives of microbiology》1975,104(1):179-184
A coupling factor necessary for the photophosphorylation and Mg2+-ATPase activities of Rhodospirillum rubrum chromatophores has been separated from these particles. Although the redox potential of coupling factor deficient chromatophores is slightly more oxidized than of the control, the addition of the coupling factor for reconstitution does not alter the redox potential. Phenazine methosulfate cannot restore or significantly enhance the photophosphorylation activities of uncoupled or reconstituted chromatophores compared to the control. The coupling factor can bind to coupling factor deficient membranes without addition of magnesium ions and thus restore the photophosphorylation and Mg2+-ATPase activities of these vesicles. The Ca2+-ATPase in the coupling factor preparation shows binding characteristics similar to those of the coupling factor. 相似文献
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A coupling factor necessary for the photophosphorylation and Mg2+-ATPase activities in Rhodospirillum rubrum chromatophores has been separated from these particles. Although the redox potential of coupling factor deficient chromatophores is slightly more oxidized than of the control, the addition of the coupling factor for reconstitution does not alter the redox potential. Phenazine methosulfate cannot restore or significantly enhance the photophosphorylation activities of uncoupled or reconstituted chromatophores compared to the control. The coupling factor can bind to coupling factor deficient membranes without addition of magnesium ions and thus restore the photophosphorylation and Mg2+-ATPase activities of these vesicles. The Ca2+-ATPase in the coupling factor preparation shows binding characteristics similar to those of the coupling factor. 相似文献
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Excitation-contraction coupling in smooth muscle 总被引:1,自引:0,他引:1