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    • 51. 发明授权
    • Heterodimer complex of RXR and NURR1 or NGFI-B
    • RXR和NURR1或NGFI-B的异二聚体复合物
    • US06458926B1
    • 2002-10-01
    • US08877966
    • 1997-06-18
    • Ronald M. EvansBarry M. FormanKazuhiko Umesono
    • Ronald M. EvansBarry M. FormanKazuhiko Umesono
    • C07K14435
    • C07K14/70567C07K2319/00G01N33/6875G01N33/74
    • Heterodimerization is a common paradigm among eucaryotic transcription factors, though it remains unclear how individual monomers contribute to the overall transcriptional activities of the complex. The 9-cis retinoic acid receptor (RXR) serves as a common heterodimerization partner for several nuclear receptors including the thyroid hormone (T3R), retinoic acid (RAR) and vitamin D receptors. A strategy has been devised to examine the transcriptional properties of each receptor individually or when tethered to a heterodimeric partner. It has been found that the intrinsic activity of RXR is masked in RXR-T3R and RXR-RAR heterodimers. In contrast, a novel RXR-Nurr1 heterodimer described herein is highly responsive to RXR ligands, suggesting that different partners exert unique allosteric control over the RXR response. These findings establish a novel 9-cis retinoic acid response pathway and resolve the paradox as to how T3R, RAR and VDR contribute to distinct physiologic pathways while sharing a common RXR subunit.
    • 异源二聚化是真核转录因子中的常见范例,尽管单个单体如何有助于复合物的整体转录活性仍不清楚。 9-顺式视黄酸受体(RXR)用作几种核受体(包括甲状腺激素(T3R),视黄酸(RAR)和维生素D受体)的常见异源二聚体配偶体。 已经设计出一种策略来单独检测每个受体的转录特性,或者当连接到异二聚体配偶体时。 已经发现在RXR-T3R和RXR-RAR异二聚体中RXR的固有活性被掩蔽。 相比之下,本文描述的新型RXR-Nurr1异源二聚体对RXR配体具有高度响应性,表明不同的合作伙伴对RXR应答发挥独特的变构控制。 这些研究结果建立了一种新的9-顺式视黄酸反应途径,并解决了T3R,RAR和VDR如何在共享一个共同的RXR亚基时对不同的生理途径有贡献的矛盾。
    • 55. 发明授权
    • Methods for the detection of ligands for retinoid X receptors
    • 检测类视黄醇X受体配体的方法
    • US5906920A
    • 1999-05-25
    • US520637
    • 1995-08-29
    • Ronald M. EvansIra G. Schulman
    • Ronald M. EvansIra G. Schulman
    • G01N33/566C07K14/47C07K14/705C07K19/00C12N15/09C12Q1/68G01N33/15G01N33/53
    • C12Q1/6897C07K14/4702C07K14/70567C07K2319/00
    • The retinoid X receptor (RXR) participates in a wide array of hormonal signaling pathways either as a homodimer or as a heterodimer with other members of the steroid/thyroid hormone superfamily of receptors. In accordance with the present invention, the ligand-dependent transactivation function of RXR has been characterized and the ability of RXR to interact with components of the basal transcription machinery has been examined. In vivo and in vitro experiments indicate the RXR ligand binding domain makes a direct, specific and ligand-dependent contact with a highly conserved region of the TATA binding protein (TBP). The ability of mutations that reduce ligand-dependent transcription by RXR to disrupt the RXR-TBP interaction in vivo and in vitro suggests that RXR makes direct contact with the basal transcription machinery in order to achieve activation.
    • 类视黄醇X受体(RXR)参与各种激素信号通路,作为同二聚体或与受体的类固醇/甲状腺激素超家族的其他成员的异源二聚体。 根据本发明,已经表征了RXR的配体依赖性反式激活功能,并且已经检查了RXR与基础转录机制的组分相互作用的能力。 体内和体外实验表明RXR配体结合结构域与TATA结合蛋白(TBP)的高度保守区域进行直接,特异性和配体依赖性接触。 通过RXR减少配体依赖性转录以破坏体内和体外RXR-TBP相互作用的突变的能力表明,RXR与基础转录机制直接接触以实现激活。
    • 57. 发明授权
    • Insect retinoid-like receptor compositions and methods
    • 类视黄醇样受体组成和方法
    • US5641652A
    • 1997-06-24
    • US464266
    • 1995-06-05
    • Anthony E. OroRonald M. Evans
    • Anthony E. OroRonald M. Evans
    • C07K14/705C12P21/06C07K1/00C12N5/00
    • C07K14/70567
    • The present invention relates to the discovery of novel insect receptor polypeptides, which, when complexed with certain ligands, or otherwise activated by certain compounds, modulate transcription of certain genes by binding to cognate response elements associated with the promoters of the genes. The novel receptors of the invention are substantially similar to previously discovered mammalian receptors which are activated to modulate transcription of certain genes in cells, when the cells are exposed to retinoic acid. The invention provides DNAs encoding the novel receptors, including expression vectors for expression of the receptors in cells; cells transformed with such expression vectors; cells co-transformed with such expression vectors and with reporter vectors to monitor activation of the receptors to modulate transcription, when the cells are exposed to ligand for the invention receptor; and methods of using such co-transformed cells in screening for compounds which are capable of leading to activation of the receptors and for compounds which are capable of interfering with such activation and, as such, are potentially potent insecticides. The invention also provides DNA and RNA probes for identifying DNA's encoding related receptors, of insects and other animals, of the class, to which the novel receptors of the invention belong.
    • 本发明涉及新型昆虫受体多肽的发现,当与某些配体复合或被某些化合物激活时,可通过结合与基因启动子相关的同源反应元件调节某些基因的转录。 本发明的新型受体基本上类似于先前发现的哺乳动物受体,其在细胞暴露于视黄酸时被活化以调节细胞中某些基因的转录。 本发明提供编码新受体的DNA,包括用于在细胞中表达受体的表达载体; 用这种表达载体转化的细胞; 当细胞暴露于本发明受体的配体时,与这些表达载体共同转化的细胞和报告载体以监测受体的活化以调节转录; 以及使用这种共转化细胞筛选能够导致受体活化的化合物和能够干扰这种活化并且因此是潜在有效的杀虫剂的化合物的方法。 本发明还提供用于鉴定本发明的新受体所属的类别的昆虫和其他动物的DNA编码相关受体的DNA和RNA探针。
    • 60. 发明授权
    • Human inhibin
    • 人抑制素
    • US4737578A
    • 1988-04-12
    • US848924
    • 1986-04-07
    • Ronald M. EvansMichael G. RosenfeldGail CerelliKelly E. MayoJoachim SpiessJean E. F. RivierWylie W. Vale, Jr.
    • Ronald M. EvansMichael G. RosenfeldGail CerelliKelly E. MayoJoachim SpiessJean E. F. RivierWylie W. Vale, Jr.
    • A61K38/00C07K14/575C07K7/10C07K13/00
    • C07K14/575A61K38/00Y10S930/26
    • Proteins with inhibin activity having a weight of about 32,000 daltons. The molecule is composed of two chains having molecular weights of about 18,000 and about 14,000 daltons, respectively, which are bound together by disulfide bonding. The 18K chain is obtained from the human inhibin gene and has the formula: H-Ser-Thr-Pro-Leu-Met-Ser-Trp-Pro-Trp-Ser-Pro-Ser-Ala-Leu-Arg-Leu-Leu-Gln-Arg-Pro-Pro-Glu-Glu-Pro-Ala-Ala-His-Ala-Asn-Cys-His-Arg-Val-Ala-Leu-Asn-Ile-Ser-Phe-Gln-Glu-Leu-Gly-Trp-Glu-Arg-Trp-Ile-Val-Tyr-Pro-Pro-Ser-Phe-R.sub.65 -Phe-His-Tyr-Cys-His-Gly-Gly-Cys-Gly-Leu-His-Ile-Pro-Pro-Asn-Leu-Ser-Leu-Pro-Val-Pro-Gly-Ala-Pro-Pro-Thr-Pro-Ala-Gln-Pro-Tyr-Ser-Leu-Leu-Pro-Gly-Ala-Gln-Pro-Cys-Cys-Ala-Ala-Leu-Pro-Gly-Thr-Met-Arg-Pro-Leu-His-Val-Arg-Thr-Thr-Ser-Asp-Gly-Gly-Tyr-Ser-P e-Lys-Tyr-Glu-Thr-Val-Pro-Asn-Leu-Leu-Thr-Gln-His-Cys-Ala-Cys-Ile-OH, wherein R.sub.65 is Ile or Arg. The 18K chain is connected by disulfide bonding to the 14K chain.
    • 具有约32,000道尔顿重量的具有抑制素活性的蛋白质。 该分子由分子量分别为约18,000和约14,000道尔顿的两条链组成,它们通过二硫键结合在一起。 18K链由人抑制素基因得到,具有下式:H-Ser-Thr-Pro-Leu-Met-Ser-Trp-Pro-Trp-Ser-Pro-Ser-Ala-Leu-Arg-Leu-Leu Gln-Arg-Pro-Pro-Glu-Glu-Pro-Ala-Ala-His-Ala-Asn-Cys-His-Arg-Val-Ala-Le-Asn-Ile-Ser-Phe-Gln-Glu- Leu-Gly-Trp-Glu-Arg-Trp-Ile-Val-Tyr-Pro-Pro-Ser-Phe-R65-Phe-His-Tyr-Cys-His-Gly-Gly-Cys-Gly-Leu-His- Ile-Pro-Pro-As n-Leu-Ser-Leu-Pro-Val-Pro-Gly-Ala-Pro-Pro-Thr-Pro-Ala-Gln-Pro-Tyr-Ser-Leu-Leu-Pro-Gly -Ala-Gln-Pro-Cys-Cys-Ala-Ala-Leu-Pro-Gly-Thr-Met-Arg-Pr-Leu-His-Val-Arg-Thr-Thr-Ser-Asp-Gly-Gly- Tyr-Ser-P e-Lys-Tyr-Glu-Thr-Val-Pro-Asn-Leu-Leu-Thr-Gln-His-Cys-Ala-Cys-Ile-OH,其中R65是Ile或Arg。 18K链通过二硫键与14K链连接。