会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明申请
    • Quantitative binding assays using green fluorescent protein as a label
    • 使用绿色荧光蛋白作为标签的定量结合测定
    • US20050059097A1
    • 2005-03-17
    • US10765063
    • 2004-01-28
    • Sylvia DaunertJennifer LewisEmily Hernandez
    • Sylvia DaunertJennifer LewisEmily Hernandez
    • C12Q1/68G01N33/53G01N33/533G01N33/543G01N33/58C07K16/46
    • G01N33/543G01N33/533G01N33/582
    • A heterogeneous binding assay for an analyte in a fluid sample is developed, which uses a green fluorescent protein (GFP) label. A ligand-GFP conjugate has a specific binding affinity for an anti-ligand immobilized on a support. The anti-ligand also has a specific binding affinity for the analyte. Competition between the analyte and ligand-GFP conjugate for binding sites on the anti-ligand permits an assay for an unknown amount of the analyte. Preferred specific binding pairs for use in the assay are biotin:avidin, and a selected antibody and its antigen. A preferred assay employing an antibody and its antigen is illustrated for a fusion protein containing GFP and an antigenic determinant. Picomolar amounts of analyte can be detected. The mutant of GFP that contains a six-histidine tail to facilitate purification on an immobilized metal affinity column is chemically modified to incorporate biotin moieties. The resulting conjugates retain the fluorescence characteristics of the unmodified protein and are used along with avidin-coated magnetic beads in the development of the assay.
    • 开发了流体样品中分析物的异质结合测定法,其使用绿色荧光蛋白(GFP)标记。 配体-GFP缀合物对固定在载体上的抗配体具有特异性结合亲和力。 抗配体还对分析物具有特异性结合亲和力。 分析物与配体-GFP缀合物之间在抗配体上的结合位点之间的竞争允许测定未知量的分析物。 用于测定中的优选的特异性结合对是生物素:抗生物素蛋白和选择的抗体及其抗原。 对于含有GFP和抗原决定簇的融合蛋白说明了使用抗体及其抗原的优选测定法。 可以检测到皮摩尔量的分析物。 包含六组氨酸尾部以促进固定化金属亲和柱上的纯化的GFP突变体被化学修饰以掺入生物素部分。 所得到的缀合物保留未修饰蛋白质的荧光特性,并在测定开发中与抗生物素蛋白包被的磁珠一起使用。
    • 7. 发明授权
    • Method and kit for determination of prostacyclin in plasma
    • 血浆前列环素测定方法及试剂盒
    • US07659078B1
    • 2010-02-09
    • US10620806
    • 2003-07-17
    • Sylvia DaunertMichael PoonUrvee DesaiSapna K. Deo
    • Sylvia DaunertMichael PoonUrvee DesaiSapna K. Deo
    • G01N33/53G01N33/537G01N33/543G01N33/88C12Q1/66C07K16/18C07K16/26
    • G01N33/88G01N2800/12Y10S435/971Y10S435/975Y10S530/807
    • A solid-phase immunoassay for 6-keto-Prostaglandin F1α, the stable hydrolysis product of prostacyclin (Prostaglandin I2) is disclosed. Prostacyclin, a potent vasodilator with anti-platelet and anti-proliferative properties is an effective treatment for primary pulmonary hypertension and pulmonary arterial hypertension associated with scleroderma and scleroderma-like syndrome. Levels of 6-keto-Prostaglandin F1α can be directly correlated with levels of prostacyclin. Therefore, 6-keto-Prostaglandin F1α has become the indicator of choice to measure prostacyclin levels. The single step immunoassay for 6-keto-Prostaglandin F1α uses the bioluminescent protein, aequorin as a label. Analyte-label conjugates were constructed by linking the carboxyl group of 6-keto-Prostaglandin F1α and lysine residues of aequorin by chemical conjugation methods. The binding properties of 6-keto-Prostaglandin F1α towards its antibody and the bioluminescent properties of aequorin are retained in the conjugate. The concentration of 6-keto-Prostaglandin F1α after extraction from plasma shows good correlation with the concentration of 6-keto-Prostaglandin F1α obtained without prior extraction of the same plasma sample. The assay allows the measurement of 6-keto-Prostaglandin F1α directly in plasma without any pre-treatment of the samples, which results in a much simpler method with a faster assay time.
    • 公开了前列环素(前列腺素I2)的稳定水解产物6-酮 - 前列腺素F1alpha的固相免疫测定。 前列环素,具有抗血小板和抗增殖特性的强效血管扩张剂是与硬皮病和硬皮病样综合征相关的原发性肺动脉高压和肺动脉高压的有效治疗方法。 6-keto-Prostaglandin F1alpha的水平可以与前列环素的水平直接相关。 因此,6-keto-Prostaglandin F1alpha已经成为衡量前列环素水平的首选指标。 6-keto-Prostaglandin F1alpha的单步免疫测定使用生物发光蛋白,水母发光蛋白作为标记。 通过化学共轭方法连接6-酮基前列腺素F1al的羧基和水母发光蛋白的赖氨酸残基,构建了分析标记物缀合物。 6-酮前列腺素F1alpha对其抗体的结合性质和水母发光蛋白的生物发光性质保留在缀合物中。 从血浆中提取6-keto-Prostaglandin F1alpha的浓度与未经提取相同血浆样品的6-酮 - 前列腺素F1al的浓度呈现良好的相关性。 该测定允许直接在血浆中测量6-酮基前列腺素F1alpha,而没有对样品进行任何预处理,这导致以更快的测定时间简单的方法。
    • 8. 发明申请
    • Quantitative binding assays using green fluorescent protein as a label
    • 使用绿色荧光蛋白作为标签的定量结合测定
    • US20050282225A1
    • 2005-12-22
    • US11197429
    • 2005-08-05
    • Sylvia DaunertJennifer LewisEmily Hernandez
    • Sylvia DaunertJennifer LewisEmily Hernandez
    • C12Q1/68G01N33/53G01N33/533G01N33/543G01N33/58
    • G01N33/543G01N33/533G01N33/582
    • A heterogeneous binding assay for an analyte in a fluid sample is developed, which uses a green fluorescent protein (GFP) label. A ligand-GFP conjugate has a specific binding affinity for an anti-ligand immobilized on a support. The anti-ligand also has a specific binding affinity for the analyte. Competition between the analyte and ligand-GFP conjugate for binding sites on the anti-ligand permits an assay for an unknown amount of the analyte. Preferred specific binding pairs for use in the assay are biotin:avidin, and a selected antibody and its antigen. A preferred assay employing an antibody and its antigen is illustrated for a fusion protein containing GFP and an antigenic determinant. Picomolar amounts of analyte can be detected. The mutant of GFP that contains a six-histidine tail to facilitate purification on an immobilized metal affinity column is chemically modified to incorporate biotin moieties. The resulting conjugates retain the fluorescence characteristics of the urunodified protein and are used along with avidin-coated magnetic beads in the development of the assay.
    • 开发了流体样品中分析物的异质结合测定法,其使用绿色荧光蛋白(GFP)标记。 配体-GFP缀合物对固定在载体上的抗配体具有特异性结合亲和力。 抗配体还对分析物具有特异性结合亲和力。 分析物与配体-GFP缀合物之间在抗配体上的结合位点之间的竞争允许测定未知量的分析物。 用于测定中的优选的特异性结合对是生物素:抗生物素蛋白和选择的抗体及其抗原。 对于含有GFP和抗原决定簇的融合蛋白说明了使用抗体及其抗原的优选测定法。 可以检测到皮摩尔量的分析物。 包含六组氨酸尾部以促进固定化金属亲和柱上的纯化的GFP突变体被化学修饰以掺入生物素部分。 所得到的缀合物保留尿素化蛋白质的荧光特性,并与抗生物素蛋白包被的磁珠一起用于测定的开发。
    • 9. 发明申请
    • SEMI-SYNTHETIC ANTIBODIES AS RECOGNITION ELEMENTS
    • 作为识别元素的半合成抗体
    • US20110229415A1
    • 2011-09-22
    • US12672397
    • 2008-08-06
    • Sylvia DaunertLeonidas G. BachasBoyd HaleySmita Joel
    • Sylvia DaunertLeonidas G. BachasBoyd HaleySmita Joel
    • A61K49/00C07K16/00G01N33/53A61B5/1459
    • C12Q1/6876
    • The presently-disclosed subject matter is directed to biosensors for detecting molecules of interest, and systems and methods for using same. The biosensors include an antibody and a probe covalently-linked to the antibody. The antibody has an antigen-binding site that selectively binds the molecule of interest and a purine-binding site, which is at a location distinct from that of the antigen-binding site. The probe includes a purine molecule, which is covalently bound at the purine-binding site to the antibody, and a label linked to the purine molecule. Upon binding of the molecule of interest to the biosensor antigen-binding site, the biosensor undergoes a conformational change, which detectably alters a signal of the label such that the molecule of interest can be detected.
    • 目前公开的主题涉及用于检测目标分子的生物传感器,以及用于其的系统和方法。 生物传感器包括与抗体共价连接的抗体和探针。 抗体具有选择性结合感兴趣分子的抗原结合位点和位于与抗原结合位点不同的位置的嘌呤结合位点。 探针包括嘌呤结合位点与抗体共价结合的嘌呤分子和与嘌呤分子连接的标记。 当感兴趣的分子与生物传感器抗原结合位点结合时,生物传感器经历构象变化,其可检测地改变标记的信号,使得可以检测到感兴趣的分子。