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    • 54. 发明授权
    • Human diacylglycerol kinase iota
    • 人二酰甘油激酶
    • US06255095B1
    • 2001-07-03
    • US09412545
    • 1999-10-05
    • Stephen M. PrescottLi DingElie Traer
    • Stephen M. PrescottLi DingElie Traer
    • C12N912
    • C12N9/1205
    • Diacylglycerol (DAG) plays a central role in both the synthesis of complex lipids and in intracellular signaling; diacylglycerol kinase (DGK) catalyzes the phosphorylation of DAG, which yields phosphatidic acid. A family of DGKs has been identified in multicellular organisms over the past few years, but the physiological function(s) of this diversity is not clear. One clue has come from the Drosophila DGK2, rdgA, since mutations in this gene cause retinal degeneration. The present invention relates to a novel DGK, designated DGK&igr;, which was isolated from human retina and brain libraries. DGK&igr; contains two cysteine-rich repeats, a region similar to the phosphorylation site domain of MARCKS, a conserved catalytic domain, and four ankyrin repeats at its C-terminus. By primary structure, DGK&igr; is most similar to human DGK&zgr; and Drosophila rdgA. A>12 kb mRNA for DGK&igr; was detected only in brain and retina among the tissues examined. In cells transfected with the DGK&igr; cDNA, an approximately 130 kDa protein was detected by immunoassay, and activity assays demonstrated that it encodes a functional DAG kinase. The protein was found to be in both the cytoplasm and nucleus, with this localization controlled by PKC isoforms &agr; and &ggr;. The gene encoding DGK&igr; was localized to human chromosome 7q32.3-33, which is known to be a locus for an inherited form of retinitis pigmentosa. These results have defined a novel isoform of DAG kinase, which may have important cellular functions in the retina and brain.
    • 二酰基甘油(DAG)在复合脂质的合成和细胞内信号传导中起重要作用; 二酰基甘油激酶(DGK)催化DAG的磷酸化,其产生磷脂酸。 过去几年,DGKs家族已被鉴定为多细胞生物,但这种多样性的生理功能尚不清楚。 一个线索来自果蝇DGK2,rdgA,因为该基因的突变导致视网膜变性。 本发明涉及一种从人视网膜和脑文库中分离得到的一种称为DGK和igr的新型DGK。 DGK&igr 含有两个富含半胱氨酸的重复序列,一个与MARCKS的磷酸化位点结构域相似的区域,一个保守的催化结构域,在其C-末端有四个锚蛋白重复序列​​。 通过主要结构,DGK&igr; 最类似于人类DGK&zgr; 和果蝇rdgA。 A> 12 kb的mRNA用于DGK和igr; 在所检查的组织中仅在脑和视网膜中检测到。 在用DGK和igr转染的细胞中 cDNA通过免疫测定检测到约130kDa的蛋白质,活性测定证明它编码功能性DAG激酶。 发现蛋白质在细胞质和细胞核两者中,其定位受PKC同种型α和γ的控制。 编码DGK和igr的基因 被定位于人染色体7q32.3-33,其被认为是色素性视网膜炎的遗传形式的基因座。 这些结果定义了DAG激酶的新型同工型,其可能在视网膜和脑中具有重要的细胞功能。
    • 56. 发明授权
    • Tandem mass spectrum analysis device and mass spectrum analysis method
    • 串联质谱分析装置和质谱分析方法
    • US09105456B2
    • 2015-08-11
    • US13576294
    • 2011-01-26
    • Gongyu JiangHui MuLi Ding
    • Gongyu JiangHui MuLi Ding
    • H01J49/06H01J49/00H01J49/42G01N30/72
    • H01J49/063G01N30/7206H01J49/004H01J49/062H01J49/4215H01J49/4225
    • A tandem mass spectrometer is provided in the present invention. The mass spectrometer includes an ion source, a quadrupole mass filter located at downstream side of the ion source, a linear ion trap disposed at downstream side of the mass filter and an ion detector placed on the side of the ion trap, all of which are placed in a vacuum environment. The instrument can obtain MS meeting the standard spectral library search criteria by the quadrupole mass filter cooperating with linear ion trap, realize any multi-stage MS under two modes of axial collision and resonance excitation, and predict and optimize the inflow amount and types of samples under the ion trap analysis mode by the quadrupole. A tandem MS analysis method is also provided, which can repeatedly provide precursor ion selection, ion acceleration, achieve high-energy collision dissociation, low product ion mass discrimination effect.
    • 在本发明中提供串联质谱仪。 质谱仪包括离子源,位于离子源下游侧的四极质量过滤器,设置在质量过滤器下游侧的线性离子阱和置于离子阱侧面的离子检测器 置于真空环境中。 仪器可以通过与线性离子阱配合的四极质谱仪获得满足标准光谱库检索标准的MS,实现轴向碰撞和共振激励两种模式下的任何多级MS,并预测和优化样品的流入量和类型 在离子阱分析模式下由四极杆。 还提供串联质谱分析方法,可重复提供前体离子选择,离子加速,实现高能碰撞解离,低离子质量鉴定效应。
    • 57. 发明申请
    • PROCESS AND APPARATUS FOR GENERATING A THREE-DIMENSIONAL SWEPT ENVELOPE OF A VEHICLE
    • 用于产生车辆三维开关的过程和装置
    • US20140032184A1
    • 2014-01-30
    • US14110703
    • 2012-04-05
    • Milton Santano Elias CarrascoDaniel Akwera ShihunduBilly Siu Fai ChanSteven Kin-Shing ChengChristian Grant MilneGuanggui PeiDarren Earl BrownLi Ding
    • Milton Santano Elias CarrascoDaniel Akwera ShihunduBilly Siu Fai ChanSteven Kin-Shing ChengChristian Grant MilneGuanggui PeiDarren Earl BrownLi Ding
    • G06F17/50
    • G06F17/5009G06F17/5095
    • A method, apparatus, media and signals for generating a computer representation of a three-dimensional swept envelope of a vehicle having a wheeled chassis operable to support a vehicle body for movement along a terrain is disclosed. The method involves receiving terrain data representing a 3D terrain, receiving data defining parameters of the vehicle, and receiving data defining a path for movement of the vehicle from an initial position on the terrain to a displaced position on the terrain. The method also involves disposing a computer representation of the vehicle on the 3D representation of the terrain at successive locations along the path using the parameters. Disposing involves determining points of engagement between wheels of the wheeled chassis and the 3D representation of the terrain to dispose the chassis with respect to the terrain, and determining a corresponding 3D location of the vehicle body with respect to the terrain. The method further involves generating a plurality of spatial extents of the vehicle at the successive locations, the spatial extents defining the 3D swept envelope of the vehicle when moving between the initial position and the displaced position. In another aspect a method for generating a computer representation of a three-dimensional swept envelope of an object moving along a guideway disposed with respect to a 3D representation of a terrain is disclosed.
    • 公开了一种用于产生具有可操作以支撑车身沿着地形运动的轮式底盘的车辆的三维扫掠包络的计算机表示的方法,装置,介质和信号。 该方法包括接收表示3D地形的地形数据,接收定义车辆参数的数据,以及接收定义用于使车辆从地形上的初始位置移动到地形上的位移位置的路径的数据。 该方法还涉及使用参数在路径的连续位置处将车辆的计算机表示设置在地形的3D表示上。 处置涉及确定轮式底盘的车轮与地形的3D表示之间的接合点,以相对于地形布置底盘,以及相对于地形确定车体的对应3D位置。 该方法还包括在连续位置处产生车辆的多个空间范围,当在初始位置和位移位置之间移动时,空间范围限定车辆的3D扫描包络线。 在另一方面,公开了一种用于生成沿着相对于地形的3D表示布置的导轨移动的物体的三维扫描包络的计算机表示的方法。
    • 58. 发明授权
    • Wire electrode based ion guide device
    • 线电极离子导向装置
    • US08507848B1
    • 2013-08-13
    • US13357470
    • 2012-01-24
    • Li DingGongyu JiangWenjian Sun
    • Li DingGongyu JiangWenjian Sun
    • H01J49/42H01J49/34H01J49/04
    • H01J49/065H01J49/066
    • This invention presents a kind of ion guide device comprising multiple layers of stretched wire electrodes crossing in space. These wire electrodes are distributed along a defined ion guiding axis in the ion guide device. Each layer of wire electrodes contains at least two wire electrodes with some distance away from the guiding axis, and rotates with an angle relative to wire electrodes on neighboring layer. The ion guide contains multiple layers of wire electrodes to form a cage-like ion guide tunnel and keeps the mounting framework of those wire electrodes outside of the ion guide tunnel, thus reducing the interference of the gas flows from the ion guide device. A power supply provides voltage to each layer of wire electrodes, creates an electric field which focuses the ions towards the guiding axis.
    • 本发明提供了一种离子导向装置,其包括在空间上交叉的多层拉伸线电极。 这些线电极沿离子导向装置中限定的离子引导轴分布。 每层线电极包含至少两根与引导轴距离一定距离的线电极,并相对于相邻层上的线电极以一定角度旋转。 离子导向器包含多层线电极以形成笼状离子导向通道,并将这些线电极的安装框架保持在离子引导通道外部,从而减少离子导向装置的气流的干扰。 电源为每层线电极提供电压,产生将离子聚焦到引导轴的电场。
    • 60. 发明授权
    • Device for separating, enriching and detecting ions
    • 用于分离,富集和检测离子的装置
    • US08384025B2
    • 2013-02-26
    • US13130254
    • 2009-11-26
    • Wenjian SunLi Ding
    • Wenjian SunLi Ding
    • H01J49/26H01J49/42H01J49/10
    • G01N27/622G01N15/0266
    • A device for separating, enriching and detecting ions comprises: a gas tube, in which a carrier gas flows at a uniform rate; an ion source; multiple electrodes provided in the gas tube and applied with electric voltages respectively, so that at least an electric field is produced along the axis of the gas tube; an ion detector; and an ion extraction channel, by which specific enriched ions will be guided across the side wall of the gas tube toward the ion detector and be analyzed. The device enriches ions utilizing the following characteristic: compound ions with specific ion mobility maintain a dynamic balance for a period of time in a flow field under the combination of a carrier gas and a suitable electrical field against the direction of the carrier gas. Simultaneously, multiple compound particles with different ion motilities can be separated and enriched at positions with different electrical field intensities in a flow field in the same manner. The device also comprises synchronously export latitudinally enriched ions at different positions in a flow field, and performs later mass analysis using a mass spectrometer.
    • 用于分离,富集和检测离子的装置包括:气体管,其中载气以均匀的速率流动; 离子源; 设置在气体管中并分别施加电压的多个电极,使得沿着气体管的轴线产生至少一个电场; 离子检测器 和离子提取通道,通过该离子提取通道将特定的富集离子引导穿过气体管的侧壁朝离子检测器进行分析。 该装置利用以下特征丰富离子:具有特定离子迁移率的复合离子在载气和合适的电场相对于载气方向的组合下在流场中保持动态平衡一段时间。 同时,具有不同离子运动的多种化合物颗粒可以以相同的方式在流场中分离富集在具有不同电场强度的位置。 该装置还包括在流场中同步输出纬向富集的离子,并使用质谱仪进行质量分析。