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Summary The microsomal fractions from chick embryo cells were shown to carry out transfer of mannose from GDP-mannose to endogenous protein acceptors. Data also are presented which support that among the subcellular fractions only the rough microsomes are active in the mannose transfer. The maximum mannosyltransferase activity is obtained with 8-day-old embryos. This observation may be related to the proliferation of rough endoplasmic reticulum with regard to smooth microsomes. 相似文献
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R. Got Georgette Levy R. Bourrillon 《Cellular and molecular life sciences : CMLS》1959,15(12):480-481
Summary The purity of human chorionic gonadotropin showing an activity of 12,000/mg, is confirmed by immuno-electrophoretic analysis. Characteristic antigenic properties of this hormone are revealed by this method. 相似文献
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J. Frot-Coutaz P. Louisot R. Got L. Colobert 《Cellular and molecular life sciences : CMLS》1968,24(12):1206-1207
Summary Protein macromolecules in which the 1-14C-l-fucose is incorporated exist in non-specialized cancerous (KB strain) or normal (chick embryo fibroblasts) cells cultivated in vitro. The preferential site of incorporation of this precursor is located at the endoplasmic membranes for cancerous cells and in the cell sap for normal cells. 相似文献
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Summary Digestive juice ofHelix pomatia was studied by immunoelectrophoresis: after incubation with a chromogenic substrate, 5-bromo-4-chloroindol-3-yl--D-galactopyranoside, two-galactosidases were revealed. 相似文献
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