共查询到20条相似文献,搜索用时 15 毫秒
1.
K. Shinozuka Y. Kikuchi C. Nishino A. Mori S. Tawata 《Cellular and molecular life sciences : CMLS》1988,44(10):882-885
Summary Flavonoids, (–)-epigallocatechin (1), myricetin (2) and quercetin (3), were investigated for inhibitory effects onE. coli DNA polymerase I and T7 bacteriophage RNA polymerase. In both DNA and RNA synthesis,1 and3 inhibited enzyme reactions by non-competitive and mixed type inhibition respecitively, with regard to template DNAs. Myricetin (2) inhibited DNA and RNA polymerase reactions by mixed type and competitive type inhibition, respectively, with template DNAs. It was suggested that2 interacts with covalently closed/circular DNA. 相似文献
2.
3.
Multiple DNA-dependent RNA polymerases of Neurospora 总被引:2,自引:0,他引:2
4.
W. E. G. Müller 《Cellular and molecular life sciences : CMLS》1976,32(12):1572-1573
Summary 1--d-arabinofuranosylcytosine-5-triphosphate and 9--d-arabinofuranosyladenosine-5-triphosphate were found to have no inhibitory potency for both mammalian DNA-dependent RNA polymerase II andE. coli DNA-dependent RNA polymerase. 相似文献
5.
W E Müller 《Experientia》1976,32(12):1572-1573
1-Beta-D-arabinofuranosylcytosine-5' -triphosphate and 9-beta-D-arabinofuranosyladenosine-5' -triphosphate were found to have no inhibitory potency for both mammalian DNA-dependent RNA polymerase II and E. coli DNA-dependent RNA polymerase. 相似文献
6.
7.
In vitro studies showed that the flavonoid aglycones apigenin, luteolin and kaempferol inhibited the hyaluronidase activity of five different venoms dose-dependently. They were also able to delay the venom action when injected into mice. Naringenin, catechin and flavonoid glycosides had no effect. The flavonoids with unsubstituted hydroxyl groups at C-positions 5, 7 and 4′, a double bond between carbons 2 and 3, as well as a ketone group at position 4, exhibited potent inhibitory actions on the venom hyaluronidases. 相似文献
8.
In vitro studies showed that the flavonoid aglycones apigenin, luteolin and kaempferol inhibited the hyaluronidase activity of five different venoms dose-dependently. They were also able to delay the venom action when injected into mice. Naringenin, catechin and flavonoid glycosides had no effect. The flavonoids with unsubstituted hydroxyl groups at C-positions 5, 7 and 4', a double bond between carbons 2 and 3, as well as a ketone group at position 4, exhibited potent inhibitory actions on the venom hyaluronidases. 相似文献
9.
10.
M Dron G Robreau Y Le Gal 《Comptes rendus des séances de l'Académie des sciences. Série D, Sciences naturelles》1978,286(1):149-152
The addition of exogenous histones to synchronous culture of Chlamydomonas reinhardtii, at the beginning of the cell cycle, leads to the death of the cells. The same amount of histones added in the middle of the cycle, only blocks the cell division. The mechanism of this inhibition effect of the histones could involve a block at the level of the chloroplast DNA replication. 相似文献
11.
12.
S. Erhan E. A. Franko R. J. Rutman 《Cellular and molecular life sciences : CMLS》1971,27(9):1077-1079
Zusammenfassung DNS-Polymerae aus Kalbsthymus (in50%-Glycerin-haltigem Puffer gelöst) zeigt bei Kühlaufbewahrung Alterung mit Änderung ihrer Template-Präferenz von einstrangiger zu doppelstrangiger DNS.
Supported by U.S. Public Health Service and Damon Runyon Grants. 相似文献
Supported by U.S. Public Health Service and Damon Runyon Grants. 相似文献
13.
14.
15.
M. G. Farrow D. F. Blaydes K. van Dyke 《Cellular and molecular life sciences : CMLS》1976,32(1):29-30
Summary The effect of auxins, cytokinins, gibbrellins and phenolics on the incorporation of uridine and thymidine into the nucleic acids of human leukocytes was examined. Both the stimulation and inhibition of the incorporation of the precursors was noted. The auxins consistently promoted the incorporation of uridine. 相似文献
16.
J D Geratz 《Experientia》1969,25(12):1254-1255
17.
J. D. Geratz 《Cellular and molecular life sciences : CMLS》1969,25(12):1254-1255
Zusammenfassung Aromatische Diamidinoverbindungen sind hochwirksame Hemmstoffe des Trypsins. 2,2-Dibromopropamidin, die stärkste der hier untersuchten Verbindungen, besitzt gegenüber der BANA-Hydrolyse eine Inhibitions-Konstante von 7.6×10–7
M. Amicarbalid und M & B 4596 sind gute Hemmstoffe der Enterokinase, doch erreichen sie die Wirkung derp-Amidinophenylbrenztraubensäure nicht. 相似文献
18.
The effect of auxins, cytokinins, gibberellins and phenolics on the incorporation of uridine and thymidine into the nucleic acids of human leukocytes was examined. Both the stimulation and inhibition of the incorporation of the precursors was noted. The auxins consistently promoted the incorporation of uridine. 相似文献
19.
Cellular and Molecular Life Sciences - 相似文献