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C. F. Nadler L. W. Turner R. S. Hoffmann L. Deutsch 《Cellular and molecular life sciences : CMLS》1973,29(7):893-894
-Spermophilus brunneus . , 13 18 ,S. brunneus S. townsendii mollis (2n=38) , , ; ;S. brunneus . S. brunneus , Spermophilus.
Supported by National Science Foundation Grants No. GB32114X and No. GB 29131X, and the Sprague Foundation. We thankD. Pozin for technical assistance. 相似文献
Supported by National Science Foundation Grants No. GB32114X and No. GB 29131X, and the Sprague Foundation. We thankD. Pozin for technical assistance. 相似文献
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S. I. Frankstein T. I. Sergeeva Z. N. Sergeeva E. S. Ivanova 《Cellular and molecular life sciences : CMLS》1975,31(3):314-315
ÿe , CO2 . CO2 ÿe . , ÿe , . 相似文献
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S. Mauthe K. Bachmann K. L. Chambers H. J. Price 《Cellular and molecular life sciences : CMLS》1984,40(11):1280-1281
Summary The hairy achenes and yellow achenes characters are expressed only in peripheral fruits onMicroseris capitula. Segregation in interstrain hybrid D37 shows that the genes responsible for these characters respond independently to developmental regulation.Supported by grants Ba 536/7-7 from the Deutsche Forschungsgemeinschaft, and DEB 80-09427 from the National Science Foundation. 相似文献
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L. V. Uryvayev Y. S. Derkach F. I. Yershov V. M. Zhdanov 《Cellular and molecular life sciences : CMLS》1971,27(3):348-349
. : (. . 59,000–61,000 ), (34,000–38,000) (15,000–18,000). 相似文献
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P. P. Rumjantsev 《Cellular and molecular life sciences : CMLS》1970,26(7):773-774
, . 2- , 1,60 ±0,59% , 0,96 ± 0,44% — . ë . , 3- . 相似文献
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B. I. Tkachenko G. V. Chernjavskaja A. V. Samoilenko S. A. Polenov 《Cellular and molecular life sciences : CMLS》1970,26(9):973-974
Conclusion Changes of the vessel capacity resulted from the pressor synocarotid reflexes, intestinal chemoreflexes and reflexes from the right atrium or ventricle and electric stimulation of the somatic nerve afferents can be either similarly or differently directed as compared with the responses of the resistance vessels.
, , , .相似文献
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I. A. Oyvin L. I. Uklonskaya P. J. Gaponiuk 《Cellular and molecular life sciences : CMLS》1967,23(7):555-556
, - Sr90 + Y90, , . - () . , , - . 相似文献
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Conclusions The decrease of circulating blood volume, resulting in oligemic hypotension, may evoke in anaesthetized cat the active constrictory coronary vessel responses of 2 types, one occuring immediately after start of the hypotension and the other having a significantly prolonged latency.
, , , , ( 4 ), ( 45 ).相似文献
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G. S. Katrukha L. A. Baratova A. B. Silaev 《Cellular and molecular life sciences : CMLS》1968,24(6):540-541
.I.NH4OH , N
N
- - ,-. , . 相似文献
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G-protein signaling: back to the future 总被引:14,自引:0,他引:14
McCudden CR Hains MD Kimple RJ Siderovski DP Willard FS 《Cellular and molecular life sciences : CMLS》2005,62(5):551-577
Heterotrimeric G-proteins are intracellular partners of G-protein-coupled receptors (GPCRs). GPCRs act on inactive G·GDP/G heterotrimers to promote GDP release and GTP binding, resulting in liberation of G from G. G·GTP and G target effectors including adenylyl cyclases, phospholipases and ion channels. Signaling is terminated by intrinsic GTPase activity of G and heterotrimer reformation – a cycle accelerated by regulators of G-protein signaling (RGS proteins). Recent studies have identified several unconventional G-protein signaling pathways that diverge from this standard model. Whereas phospholipase C (PLC) is activated by Gq and G, novel PLC isoforms are regulated by both heterotrimeric and Ras-superfamily G-proteins. An Arabidopsis protein has been discovered containing both GPCR and RGS domains within the same protein. Most surprisingly, a receptor-independent G nucleotide cycle that regulates cell division has been delineated in both Caenorhabditis elegans and Drosophila melanogaster. Here, we revisit classical heterotrimeric G-protein signaling and explore these new, non-canonical G-protein signaling pathways.Received 21 October 2004; received after revision 20 November 2004; accepted 30 November 2004 相似文献
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Summary The amino acid sequence was compared among the three allelic variants (allozymes) ofsn-glycerol-3-phosphate dehydrogenase inD. virilis, which are detected by one-dimensional electrophoresis. The GPDHf variant was different from the GPDHm by only one substitution of 68-lysine for asparagine; GPDHs differed from GPDHm by substitution of 127-glycine for arginine. No electrophoretically silent substitutions were found in a total of 352 amino acid residues. 相似文献
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B. M. Carlson 《Cellular and molecular life sciences : CMLS》1968,24(10):1064-1066
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Summary (1) The adrenalin of the frog heart was found to be localized mainly in the granular fraction (100,000g). After pretreatment with -methyldopa (-MD), the heart also contained -methyldopamine, -methylnoradrenalin, and -methyladrenalin. (2) -MD caused a maximal expansion of the melanophores. This action was counteracted byl-dopa, which per se caused a contraction of the melanophores. After pretreatment with -MD the skin contained besides adrenalin also -methyldopamine and -methyladrenalin. In addition also 5-hydroxytryptophan expanded the melanophores. 相似文献
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