METHODS FOR PREPARING MACROCYCLES AND MACROCYCLE STABILIZED PEPTIDES
    3.
    发明申请
    METHODS FOR PREPARING MACROCYCLES AND MACROCYCLE STABILIZED PEPTIDES 审中-公开
    制备大环化合物和大环化学稳定肽的方法

    公开(公告)号:WO2012051405A1

    公开(公告)日:2012-04-19

    申请号:PCT/US2011/056124

    申请日:2011-10-13

    Abstract: The invention provides methods of preparing macrocycles including macrocycle stabilized peptides (MSPs). Macrocycles and MSPs are prepared according to nucleophilic capture of an iminoquinomethide type intermediate generated from a suitably substituted 2-amino-thiazol-5-yl carbinol. The preferred nucleophile may be selected from an electron rich aromatic moiety in the case of macrocycles and, in the case of MSPs, at least one amino acid comprises an electron rich aromatic moiety. In addition, the concept can be extended to other related 5-membered heterocyclic systems in place of the thiazole, such as imidazole or oxazole. The conditions for the generation of the corresponding iminoquinomethide type intermediates may be similar or different than the conditions used for the 2-amino-thiazol-5-yl carbinol.

    Abstract translation: 本发明提供了制备大环化合物包括大环稳定肽(MSP)的方法。 根据由适当取代的2-氨基 - 噻唑-5-基甲醇产生的亚氨基喹喔啉型中间体的亲核捕获制备大环和MSP。 在大环化合物的情况下,优选的亲核试剂可以选自富含电子的芳族部分,在MSP的情况下,至少一个氨基酸包含富电子的芳族部分。 此外,该概念可以扩展到其它相关的5元杂环体系代替噻唑,例如咪唑或恶唑。 产生相应的亚氨基喹喔啉型中间体的条件可以与用于2-氨基 - 噻唑-5-基甲醇的条件相似或不同。

    THREE-DIMENSIONAL STRUCTURE OF HIN1 NUCLEOPROTEIN IN COMPLEX WITH ANTIVIRAL COMPOUNDS
    7.
    发明申请
    THREE-DIMENSIONAL STRUCTURE OF HIN1 NUCLEOPROTEIN IN COMPLEX WITH ANTIVIRAL COMPOUNDS 审中-公开
    HIN1核蛋白与抗病毒复合物的三维结构

    公开(公告)号:WO2012134967A3

    公开(公告)日:2013-03-21

    申请号:PCT/US2012030221

    申请日:2012-03-23

    CPC classification number: C07K14/005 A61K38/00 C12N2760/16122 G01N33/6875

    Abstract: The binding mode of the antiviral compounds have been characterized through a variety of biophysical and structural studies, elaborating on the proposed aggregation mechanism of action. We demonstrate the direct binding of these antiviral compounds to NP using thermal shift enhancement assay (TSE) and NMR. In addition, we have completed a detailed analysis of the oligomerization mechanism of action using dynamic light scattering, analytical ultracentrifugation, and surface plasmon resonance (SPR). Structure determination using x-ray crystallography confirmed the proposed compound-induced oligomerization mechanism of action. The co-crystal structure revealed that two compounds bound in an anti-parallel fashion bridging two NP monomers, inducing a novel non-native NP oligomer. Taken together, our data suggest a complex binding mode in which the compounds bind NP specifically in stoichiometric fashion inducing the formation of an NP oligomer without obstructing the RNA binding pocket or interfering with the native NP homo-oligomerization.

    Abstract translation: 抗病毒化合物的结合模式已经通过各种生物物理和结构研究来表征,详细阐述了提出的聚集作用机制。 我们使用热移位增强测定(TSE)和NMR证明了这些抗病毒化合物与NP的直接结合。 另外,我们已经完成了使用动态光散射,分析超速离心和表面等离子体共振(SPR)的作用的低聚机理的详细分析。 使用x射线晶体学的结构测定证实了所提出的化合物诱导的低聚作用机制。 共晶结构显示两种化合物以反平行方式结合,桥接两个NP单体,诱导新型非天然NP寡聚体。 综合起来,我们的数据表明了复合结合模式,其中化合物以化学计量的方式特异性结合NP,诱导NP寡聚体的形成,而不会阻碍RNA结合口袋或干扰天然的NP均聚低聚。

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