Triterpene metabolite of Trametes stowardii

1973 ◽  
Vol 26 (3) ◽  
pp. 609 ◽  
Author(s):  
HT Cheung ◽  
JCF Seeto ◽  
TR Watson
Keyword(s):  
Fungal Metabolite ◽  
Identical Pair ◽  
Spectroscopic Evidence ◽  
Group Chemical

The fungus Trametes stowardii produces a triterpenoid metabolite with an uncommon malonate conjugate group. Chemical and spectroscopic evidence indicate the structure (1) (3α-carboxyacetoxy-24ξ-methyl-23- oxolanosta-8,25-dien-27-oic acid) for the triterpene. Both (1) and the recently reported fungal metabolite carboxyacetyl-quercinic acid (6)1 are converted into an identical pair of butenolides (8).

NADH in Solution: A Single State

2019 ◽  
Author(s):  
Joachim Hönes ◽  
Julia Wack ◽  
Katja Schmitz
Keyword(s):  
Aqueous Solution ◽  
Base Stacking ◽  
Spectroscopic Evidence ◽  
Single State

<div>Spectroscopic evidence is presented to show that NADH in aqueous solution does not exist as a folded/unfolded equilibrium but as a single state. The molecule is folded but without base stacking between dihydronicotinamide and adenine.<br></div>

scholarly journals Dihydroflavonol and Flavonol Derivatives from Macaranga Recurvata

2012 ◽  
Vol 7 (10) ◽  
pp. 1934578X1200701
Author(s):  
Mulyadi Tanjung ◽  
Euis H. Hakim ◽  
Elfahmi ◽  
Jalifah Latip ◽  
Yana M. Syah
Keyword(s):  
Strong Activity ◽  
Spectroscopic Evidence ◽  
New Compounds ◽  
Flavonol Derivatives

Two new dihydroflavonol derivatives, macarecurvatins A and B, have been isolated from the leaves of Macaranga recurvata(Euphorbiaceaae), along with the known compounds diisoprenylaromadendrin, glyasperin A and broussoflavonol F. The structures of the new compounds were determined on the basis of spectroscopic evidence. Upon cytotoxic evaluation against P-388 cells, macarecurvatin B showed strong activity with an IC50 of 0.83 μM.

scholarly journals Mars: Mariner 9 Spectroscopic Evidence for H2O Ice Clouds

Science ◽  
1973 ◽  
Vol 182 (4110) ◽  
pp. 381-383 ◽  
Author(s):  
R. J. Curran ◽  
B. J. Conrath ◽  
R. A. Hanel ◽  
V. G. Kunde ◽  
J. C. Pearl
Keyword(s):  
Ice Clouds ◽  
Spectroscopic Evidence ◽  
Mariner 9

scholarly journals SPECTROSCOPIC EVIDENCE FOR THE EXISTENCE OF CARBOXYCYTOCHROME C

1938 ◽  
Vol 124 (1) ◽  
pp. 25-31
Author(s):  
Aaron M. Altschul ◽  
T.R. Hogness
Keyword(s):  
Spectroscopic Evidence

scholarly journals Novel metal cluster in the iron-molybdenum cofactor of nitrogenase. Spectroscopic evidence

1978 ◽  
Vol 253 (4) ◽  
pp. 1001-1004 ◽  
Author(s):  
J. Rawlings ◽  
V.K. Shah ◽  
J.R. Chisnell ◽  
W.J. Brill ◽  
R. Zimmermann ◽  
...  
Keyword(s):  
Metal Cluster ◽  
Molybdenum Cofactor ◽  
Spectroscopic Evidence ◽  
Iron Molybdenum Cofactor
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