COMPOSITION FOR DYEING KERATIN FIBRES, COMPRISING AN OXIDATION BASE AND A PARTICULAR HETEROARYL COUPLER
申请人:L'OREAL
公开号:US20170087075A1
公开(公告)日:2017-03-30
The invention relates to a composition comprising: i) at least one oxidation base, preferably of heterocyclic and/or para-phenylenediamine type; and ii) at least one heteroaryl coupler of formula (I), with R
1
, R
2
, R
3
, A and X as defined in the description. The invention also relates to a process for dyeing keratin fibres using ingredients i) and ii); to a kit comprising ingredients i) and ii); and to the use of ingredient i) combined with ii) for dyeing keratin fibres. The composition of the invention leads to particularly powerful, chromatic and sparingly selective colourings.
US4476128A
申请人:——
公开号:US4476128A
公开(公告)日:1984-10-09
US9993409B2
申请人:——
公开号:US9993409B2
公开(公告)日:2018-06-12
Discovery and Characterization of a Cryptic Secondary Binding Site in the Molecular Chaperone HSP70
作者:Suzanne O’Connor、Yann-Vaï Le Bihan、Isaac M. Westwood、Manjuan Liu、Oi Wei Mak、Gabriel Zazeri、Ana P. R. Povinelli、Alan M. Jones、Rob van Montfort、Jóhannes Reynisson、Ian Collins
DOI:10.3390/molecules27030817
日期:——
potential for the inhibition of HSP70 through alternative binding sites using fragment-basedapproaches. A surface plasmon resonance (SPR) fragment screen designed to detect secondary binding sites in HSP70 led to the identification by X-ray crystallography of a cryptic binding site in the nucleotide-binding domain (NBD) of HSP70 adjacent to the ATP-binding site. Fragment binding was confirmed and characterized
热休克蛋白 70 (HSP70) 是关键分子伴侣,在许多癌症中过度表达,通常与转移和不良预后相关。事实证明,由于 HSP70 ATP 结合位点的柔性和亲水性及其对内源核苷酸的高亲和力,开发 ATP 竞争性、药物样的 HSP70 小分子抑制剂非常困难。本研究的目的是探索使用基于片段的方法通过替代结合位点抑制 HSP70 的潜力。旨在检测 HSP70 中二级结合位点的表面等离子共振 (SPR) 片段筛选,通过 X 射线晶体学鉴定了 HSP70 核苷酸结合域 (NBD) 中与 ATP 结合位点相邻的隐秘结合位点。使用 SPR 和配体观察的 NMR 方法确认片段结合并表征为 ATP 竞争性。应用分子动力学模拟来了解配体结合时与蛋白质的相互作用,并检测到与观察到的具有和不具有隐袋的晶体结构之间的相互转换一致的局部二级结构变化。进行了针对隐秘口袋的虚拟高通量筛选(vHTS),并通过 SPR 证实了具有