Identification of a small molecule inhibitor that stalls splicing at an early step of spliceosome activation
作者:Anzhalika Sidarovich、Cindy L Will、Maria M Anokhina、Javier Ceballos、Sonja Sievers、Dmitry E Agafonov、Timur Samatov、Penghui Bao、Berthold Kastner、Henning Urlaub、Herbert Waldmann、Reinhard Lührmann
DOI:10.7554/elife.23533
日期:——
the stalled complexes (designated B028) revealed that U4/U6 snRNP proteins are released during activation before the U6 Lsm and B-specific proteins, and before recruitment and/or stable incorporation of Prp19/CDC5L complex and other Bact complexproteins. The U2/U6 RNA network in B028 complexes differs from that of the Bact complex, consistent with the idea that the catalytic RNA core forms stepwise
Novel inhibitors of Plasmodium falciparum based on 2,5-disubstituted furans
作者:Susann H. Krake、Pablo David G. Martinez、Jenna McLaren、Eileen Ryan、Gong Chen、Karen White、Susan A. Charman、Simon Campbell、Paul Willis、Luiz Carlos Dias
DOI:10.1016/j.ejmech.2016.12.024
日期:2017.1
mice, although the compound later showed poor metabolic stability in liver microsomes through ring- and side chain-oxidation and N-dealkylation. We describe here the synthesis of derivatives of 1, exploring the influence of substitution patterns around the aromatic ring, variations on the alkylchain and modifications in the core heterocycle, in order to probe potency and metabolic stability, where 4k
Various oximes of arylfurfural were prepared and characterized through elemental analysis and spectroscopic techniques (FTIR, 1H NMR, 13C NMR and Mass). Synthesized compounds were tested for their antioxidant, tyrosinase and chemotrypson activities.
A medicament having inhibitory activity against plasminogen activator inhibitor-1, which comprises as an active ingredient a compound represented by the following general formula (I) or a salt thereof:
wherein R
1
and R
2
represents an aromatic group which may be substituted, W represents a group selected from the following connecting group W-1:
(wherein a bond at the left end binds to the carbon atom and a bond at the right end binds to the nitrogen atom, X represents sulfur atom or NH, Y represents oxygen atom or sulfur atom,
R
3
represents a hydrocarbon group, hydroxy group, or carboxy group),
Z represents a single bond or a connecting group wherein a number of atoms in a main chain is 1 to 3.
Information-Rich, Dual-Function <sup>13</sup>C/<sup>2</sup>H-Isotopic Crosstalk NMR Assay for Human Serine Racemase (hSR) Provides a PLP-Enzyme “Partitioning Fingerprint” and Reveals Disparate Chemotypes for hSR Inhibition
作者:Stephany M. Ramos de Dios、Jared L. Hass、Danielle L. Graham、Nivesh Kumar、Aina E. Antony、Martha D. Morton、David B. Berkowitz
DOI:10.1021/jacs.2c12774
日期:2023.2.8
deployed to screen a 1020-compound library and identifies an indolo-chroman-2,4-dione inhibitor family that displays allosteric site binding behavior (noncompetitive inhibition vs l-Ser substrate; competitive inhibition vs adenosine 5′-triphosphate (ATP)). This assay also reveals important mechanistic information for hSR; namely, that H/D exchange is ∼13-fold faster than racemization, implying that K56 protonates