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451.
Volatiles from the epicuticular wax of watercress were collected by ether washing and examined using gas chromatographic and mass spectrometric analysi 相似文献
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R. Balabsubramanian G. Raghunathan 《International journal of biological macromolecules》1982,4(6):377-378
The distribution of regular secondary structures, viz. α-helices and β-strands, along the length of over 70 properties whose secondary structural details have been reported, has been analysed. The occurrence of these regular structures tends to be a maximum at the N- and C-termini. Our analysis suggests that both these free ends could possibly serve as nucleating centers for secondary structures and could play an important role in the folding of proteins. 相似文献
454.
It was shown that at a continuously increased level of endogenous glucocorticoids (injection of ACTH) in thymectomized and B mice the degree of inhibition of CFUs migration, that was observed in T-deficient mice without ACTH injection, did not increase. With T-deficiency the stimulatory effect of the hypocorticoid state (adrenalectomy) on the CFUs migration persisted but was less pronounced than in animals with intact thymus. 相似文献
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Electron microscope examination of two plaque variants from a nuclear polyhedrosis virus of the alfalfa looper, Autographa californica 总被引:3,自引:0,他引:3
This investigation looks into the ultrastructural differences between plaque variants of the alfalfa looper nuclear polyhedrosis virus. The variants exhibit distinct differences in polyhedra morphology and enveloping of the nucleocapsids.Tissues from larvae infected per os or subcutaneously with virus from one type of plaque always contained virus representative of both plaques. This was not true of the in vitro cultured cells. In those cells, a culture infected with one plaque type always developed infections that were typical of that particular plaque. 相似文献
460.