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991.
992.
M. B. Van der Weyden L. Bailey O. M. Garson 《Cellular and molecular life sciences : CMLS》1978,34(4):531-532
Summary In patients exhibiting in marrow cells deletion of the long arm of chromosome 20, the specific activities of adenosine deaminase in cells of the peripheral blood are normal. This suggests that the gene for adenosine deaminase is not localized to the distal segment of the long arm of this chromosome.This work was supported by Grants from the National Health and Medical Research Council of Australia and the Anti-Cancer Council of Victoria. 相似文献
993.
J F Nuboer N Bos H van Genderen-Takken H van den Hoeven J C van Steenbergen 《Experientia》1979,35(8):1066-1067
The origin of the apparent farsightedness as revealed by retinoscopy in smaller eyes was investigated by using monochromatic retinoscopy on wild rabbits. Our results indicate that a combination of long wavelength light and chromatic aberration of the subject's dioptrics is the major source of this artifact. 相似文献
994.
995.
Invertible DNA determines host specificity of bacteriophage mu 总被引:37,自引:0,他引:37
The function of the invertible G region of bacteriophage Mu is apparently to confer different host specificities on Mu. Two products of genes S and U, situated in the G region are not needed for the infectivity of Mu G(-) particles. In the Mu G(-) phage the S gene product and the 21-K polypeptide, presumably the product of gene U, are missing. Instead, two other polypeptides with different molecular weights are observed. 相似文献
996.
J L Popot R A Demel A Sobel L L van Deenen J P Changeux 《Comptes rendus des séances de l'Académie des sciences. Série D, Sciences naturelles》1977,285(9):1005-1008
The interaction of the cholinergic (nicotinic) receptor protein purified from Torpedo marmorata electric organ with lipidic monomolecular films is studied at constant film area or constant superficial pressure. In both experimental situations, it is incorporated more efficiently into cholesterol than into egg lecithin films without showing any selectivity for a particular phospholipid class. 相似文献
997.
D Sellos A van Wormhoudt Y Le Gal 《Comptes rendus des séances de l'Académie des sciences. Série D, Sciences naturelles》1977,284(6):489-492
The chromatin of Palaemon serratus hepatopancreas and testes has been isolated. All the classes of histones are present in the fractions studied so far. However, F1 harbors some characteristics different from that of Calf thymus F1. Moreover a supplementary fraction of low molecular weight can be detected in the testes. 相似文献
998.
The brain has generally been considered an insulin-independent organ, because insulin does not apparently exert a direct effect on brain glucose consumption. Recently, however, insulin receptors have been detected throughout the central nervous system (CNS) of several species. Since important insights into the functional significance of brain insulin receptors might be provided by identification of the cell type(s) possessing these receptors, we have attempted to localise them morphologically using light and electron microscope autoradiography. We report here results indicating that blood vessels throughout the CNS of the rat bind plasma insulin rapidly and with considerable specificity. 相似文献
999.
Intraperitoneal and intraventricualr injection of histamine induces a very fast and high elevation of vasopressin in rat plasma as determined by radioimmunoassay. The effects are dose and time related. The intraventricular injection is more effective with regard to time and dose than the intraperitoneal injection. 相似文献
1000.