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    • 4. 发明申请
    • Human platelet-derived growth factor receptors
    • 人血小板衍生生长因子受体
    • US20070178527A1
    • 2007-08-02
    • US11495096
    • 2006-07-28
    • Lewis WilliamsJaime Escobedo
    • Lewis WilliamsJaime Escobedo
    • G01N33/53C07H21/04C12P21/06C07K14/71
    • C07K14/71G01N33/74G01N2333/49
    • DNA sequences encoding human platelet-derived growth factor receptors (hPDGF-R), and expression constructs comprising sequences which encode a receptor that can be secreted or incorporated into the membrane of a mammalian cell. Peptide fragments with functions equivalent to the wild-type receptor, conferring a PDGF-sensitive mitogenic response on cells lacking the receptor are provided. The constructs can be used for enhancing PDGF response of cells, determining the regions involved in transducing the signal in response to PDGF binding, providing mutated analogs and evaluating drugs for their physiologic activity. Soluble fragments comprising PDGF receptor sequences are also provided, including important intracellular kinase insert sequences which interact with intracellular proteins.
    • 编码人血小板衍生生长因子受体(hPDGF-R)的DNA序列和包含编码可以分泌或并入哺乳动物细胞膜的受体的序列的表达构建体。 提供了功能相当于野生型受体的肽片段,赋予缺乏受体的细胞对PDGF敏感的促有丝分裂反应。 该构建体可用于增强细胞的PDGF应答,确定与PDGF结合相关的转导信号所涉及的区域,提供突变的类似物并评估药物的生理活性。 还提供了包含PDGF受体序列的可溶性片段,包括与细胞内蛋白质相互作用的重要细胞内激酶插入序列。
    • 9. 发明授权
    • Method for automatic guard selection in automatic test equipment
    • 自动检测设备自动防护选择方法
    • US4774455A
    • 1988-09-27
    • US840297
    • 1986-03-14
    • Lewis Williams
    • Lewis Williams
    • G01R31/28
    • G01R31/2813
    • During the testing of circuit boards with Automatic Test Equipment in some circuit configurations the performance of a component may not be as expected even though it is sound due to the influence of surrounding components. In such a situation guards may be placed, that is further signals via probes contacting nodes other than those to which the component is connected, so that such disruption may be minimized. A method for defining guards during the operation of automatic test equipment so that a selected component of a circuit may be tested includes establishing a measurement of the selected component in a known to be good circuit of the type to be tested. A circuit node associated with the selected component is identified and a guard is applied to the node. A second measurement is established with the selected guard in place. If the guard results in an improvement, it is retained during subsequent automatic testing.
    • 在具有自动测试设备的电路板的测试中,在某些电路配置中,由于周围组件的影响,组件的性能可能不是预期的,即使它是健全的。 在这种情况下,可以放置保护装置,这是通过探头接触除了与其连接的那些节点之外的节点的信号,使得这种中断可能被最小化。 一种用于在自动测试设备的操作期间定义防护装置的方法,使得可以测试电路的选定部件可以包括以已知为被测试类型的良好电路来建立所选择的部件的测量。 识别与所选择的组件相关联的电路节点,并且将保护应用于该节点。 第二个测量是与所选择的守卫建立在一起的。 如果防护结果有所改善,则在随后的自动测试中保留。