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    • 5. 发明申请
    • Compositions and method of treating hypoxia-associated diseases
    • 治疗缺氧相关疾病的组合物和方法
    • US20090192084A1
    • 2009-07-30
    • US12291155
    • 2008-11-05
    • Gabriela AlexandruRaymond DeshaiesJohannes Graumann
    • Gabriela AlexandruRaymond DeshaiesJohannes Graumann
    • A61K38/17G01N33/566G01N33/53G01N33/536C12Q1/68C12N5/06A61K31/711
    • G01N33/6872A61K31/711G01N2333/4703G01N2500/02
    • Hypoxia, a state of lower than normal tissue oxygen tension, has recently been implicated in a host of human diseases, including cancer, heart disease, and neurological disorders. Novel associations between p97 and other proteins, including UBX-domain-containing proteins (UBX-polypeptides), HIF1α, and a variety of E3 ligases are provided herein. The disclosure provides complexes comprising UBX-domain-containing polypeptides (UBX-polypeptides) and other polypeptides involved in the degradation of ubiquitinated proteins. In addition, the disclosure provides uses for active agents that modulate protein-protein complex formation between an UBX-polypeptide and its complementary-binding substrate. For example, the disclosure provides methods for treating or preventing hypoxia-related disorders or conditions in a patient or a cell by administration of an active agent that modulates the activity of an UBX-polypeptide and/or its complementary binding-substrate. Furthermore, the disclosure provides uses for active agents that modulate HIF1α activity; such agents may be used to modulate processes that are regulated by HIF1α. The disclosure also provides many screening assays to identify test agents that modulate complex formation between an UBX-polypeptide and its complementary-binding substrate or methods for evaluating modes of action and/or effects of active agents that have already been identified as modulators of an UBX-polypeptide and/or its complementary-binding substrate.
    • 缺氧是一种低于正常组织氧气紧张度的状态,最近已经涉及许多人类疾病,包括癌症,心脏病和神经障碍。 本文提供了p97和其他蛋白质(包括含UBX结构域的蛋白质(UBX-多肽),HIF1α和各种E3连接酶)之间的新型关联。 本公开提供了包含含有UBX结构域的多肽(UBX-多肽)和参与泛素化蛋白质降解的其它多肽的复合物。 此外,本公开提供了调节UBX-多肽与其互补结合底物之间的蛋白质 - 蛋白质复合物形成的活性剂的用途。 例如,本公开提供了通过施用调节UBX-多肽和/或其互补结合底物的活性的活性剂来治疗或预防患者或细胞中的缺氧相关病症或病症的方法。 此外,本公开提供了调节HIF1α活性的活性剂的用途; 这些药剂可用于调节由HIF1alpha调节的过程。 本公开还提供了许多筛选测定法,以鉴定调节UBX-多肽及其互补结合底物之间的复合物形成的测试剂或用于评估已被鉴定为UBX调节剂的活性剂的作用模式和/或效果的方法 - 多肽和/或其互补结合底物。
    • 6. 发明授权
    • Compositions and method of treating hypoxia-associated diseases
    • 治疗缺氧相关疾病的组合物和方法
    • US07867724B2
    • 2011-01-11
    • US12291155
    • 2008-11-05
    • Gabriela AlexandruRaymond DeshaiesJohannes Graumann
    • Gabriela AlexandruRaymond DeshaiesJohannes Graumann
    • G01N33/53G01N33/543
    • G01N33/6872A61K31/711G01N2333/4703G01N2500/02
    • Hypoxia, a state of lower than normal tissue oxygen tension, has recently been implicated in a host of human diseases, including cancer, heart disease, and neurological disorders. Novel associations between p97 and other proteins, including UBX-domain-containing proteins (UBX-polypeptides), HIF1α, and a variety of E3 ligases are provided herein. The disclosure provides complexes comprising UBX-domain-containing polypeptides (UBX-polypeptides) and other polypeptides involved in the degradation of ubiquitinated proteins. In addition, the disclosure provides uses for active agents that modulate protein-protein complex formation between an UBX-polypeptide and its complementary-binding substrate. For example, the disclosure provides methods for treating or preventing hypoxia-related disorders or conditions in a patient or a cell by administration of an active agent that modulates the activity of an UBX-polypeptide and/or its complementary binding-substrate. Furthermore, the disclosure provides uses for active agents that modulate HIF1α activity; such agents may be used to modulate processes that are regulated by HIF1α. The disclosure also provides many screening assays to identify test agents that modulate complex formation between an UBX-polypeptide and its complementary-binding substrate or methods for evaluating modes of action and/or effects of active agents that have already been identified as modulators of an UBX-polypeptide and/or its complementary-binding substrate.
    • 缺氧是一种低于正常组织氧气紧张度的状态,最近已经涉及许多人类疾病,包括癌症,心脏病和神经障碍。 本文提供了p97和其他蛋白质(包括含UBX结构域的蛋白质(UBX-多肽),HIF1α和各种E3连接酶)之间的新型关联。 本公开提供了包含含有UBX结构域的多肽(UBX-多肽)和参与泛素化蛋白质降解的其它多肽的复合物。 此外,本公开提供了调节UBX-多肽与其互补结合底物之间的蛋白质 - 蛋白质复合物形成的活性剂的用途。 例如,本公开提供了通过施用调节UBX-多肽和/或其互补结合底物的活性的活性剂来治疗或预防患者或细胞中的缺氧相关病症或病症的方法。 此外,本公开提供了调节HIF1α活性的活性剂的用途; 这些药剂可用于调节由HIF1α调节的过程。 本公开还提供了许多筛选测定法,以鉴定调节UBX-多肽及其互补结合底物之间的复合物形成的测试剂或用于评估已被鉴定为UBX调节剂的活性剂的作用模式和/或效果的方法 - 多肽和/或其互补结合底物。
    • 9. 发明授权
    • Assay for the ubiquitination-promoting activity of human proteins
    • 测定人类蛋白质泛素化促进活性
    • US06165731A
    • 2000-12-26
    • US235572
    • 1999-01-22
    • Raymond DeshaiesSvetlana LyapinaCraig C. Correll
    • Raymond DeshaiesSvetlana LyapinaCraig C. Correll
    • C07K16/14C07K16/18C12Q1/25G01N33/53A61K39/395C07K16/00C12P13/18G01N33/573
    • C07K16/18C07K16/14C12Q1/25G01N2333/9015G01N2500/00
    • A method is provided for identifying an compound that affects an activity of a polypeptide subunit of a SCF complex. The method includes contacting a sample comprising a chimeric SCF complex assembled from subunits derived from Saccharomyces cerevisiae or human and another species and a CDC34p polypeptide with the compound under conditions that allow the components to interact, and adding to these components an E1 enzyme, ubiquitin and ATP, and a SCF substrate. The ubiquitination of the SCF substrate is measured. A chimeric in vitro assay system is provided for measuring CDC53p or CUL1p activity, comprising a CDC4p, CDC34p, and a SKP1p polypeptide, and either a CDC53p or CUL1p polypeptide. In this assay the CDC4p, CDC34p, and SKP1p polypeptide are either a yeast polypeptide or a polypeptide from another species, and at least one of the CDC4p, CDC34p, and SKP1p polypeptides is a yeast polypeptide and at least one of the CDC4p, CDC34p, and SKP1p polypeptides is a polypeptide from another species. A method is further provided for identifying a compound that affects the ability of a CDC4p, a SKP1p, a CDC34p, and a CDC53p or a CUL1p to ubiquitinate a substrate. The method includes contacting a sample comprising a CDC4p, a SKP1p, a CDC34p, and a CDC53p or CUL1p, with the compound under conditions sufficient to allow the components to interact, and adding to these components an E1 enzyme, ubiquitin and ATP, and a substrate for ubiquitination. The ability of the CDC4p, the SKP1p, the CDC34p, and the CDC53p or CUL1p, to ubiquitinate the substrate is measured. A method is also provided of identifying a polypeptide having a function of a CDC4 subunit of SCF. A method is further provided for identifying a polypeptide as a substrate for a ubiquitination reaction.
    • 提供了用于鉴定影响SCF复合物的多肽亚基的活性的化合物的方法。 该方法包括在允许组分相互作用的条件下将包含由来自酿酒酵母(Saccharomyces cerevisiae)或人与另一物种的亚基组装的样品与CDC34p多肽与所述化合物接触,并将E1酶,泛素和 ATP和SCF底物。 测量SCF底物的泛素化。 提供嵌合体外测定系统用于测量CDC53p或CUL1p活性,其包含CDC4p,CDC34p和SKP1p多肽,以及CDC53p或CUL1p多肽。 在该测定中,CDC4p,CDC34p和SKP1p多肽是酵母多肽或来自另一物种的多肽,并且CDC4p,CDC34p和SKP1p多肽中的至少一个是酵母多肽,并且CDC4p,CDC34p, 和SKP1p多肽是来自另一物种的多肽。 还提供了一种鉴定影响CDC4p,SKP1p,CDC34p和CDC53p或CUL1p泛素化底物的能力的化合物的方法。 该方法包括使包含CDC4p,SKP1p,CDC34p和CDC53p或CUL1p的样品与足以允许组分相互作用的条件下与化合物接触,并将E1酶,泛素和ATP以及 底物用于泛素化。 测量CDC4p,SKP1p,CDC34p和CDC53p或CUL1p的泛素化底物的能力。 还提供了鉴定具有SCF的CDC4亚基的功能的多肽的方法。 还提供了一种鉴定多肽作为泛素化反应底物的方法。