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
    • 2. 发明申请
    • ASSAYS FOR S-ADENOSYLMETHIONINE-DEPENDENT METHYLTRANSFERASES
    • S-腺嘌呤依赖性甲基衍生物的测定
    • US20100291605A1
    • 2010-11-18
    • US12161795
    • 2007-01-23
    • Zhaohui ZhouKathleen Dorgan
    • Zhaohui ZhouKathleen Dorgan
    • C12Q1/48C12Q1/34
    • C12Q1/48C12Q1/52G01N2333/91011
    • Disclosed are novel methyltransferase assay methods, comprising: including, in a reaction mixture for a methyltransferase activity, a purified or recombinant adenosine nucleosidase activity that catalyses release of an adenine or adenine derivative moiety from a transmethylation product, and a purified or recombinant adenine deaminase activity that catalyses deamination of the released moiety to hypoxanthine or respective derivative and ammonia, wherein the methyltransferase activity is rate-limiting; and determining the methyltransferase activity by spectrophotometric or chromatographic monitoring of the coupled deamination reaction products, or of subsequent enzymatic or chemical reactions coupled thereto. Coupled oxidation of the hypoxanthine to uric acid and hydrogen peroxide is optionally affected using purified or recombinant xanthine oxidase, wherein the methyltransferase activity is rate-limiting, and wherein determining the methyltransferase activity comprises monitoring of the coupled oxidation reaction. Variations are disclosed comprises monitoring of reaction products (e.g., to detect NH3, Hypoxanthine, H2O2, and Uric Acid).
    • 公开了新的甲基转移酶测定方法,其包括:在用于甲基转移酶活性的反应混合物中,包含催化腺嘌呤或腺嘌呤衍生物部分从转甲基化产物释放的纯化或重组腺苷核苷酶活性,以及​​纯化或重组腺嘌呤脱氨酶活性 催化释放的部分与次黄嘌呤或相应的衍生物和氨的脱氨基,其中甲基转移酶活性是速率限制的; 以及通过分光光度法或色谱监测偶联的脱氨基反应产物,或随后与其偶联的酶或化学反应来确定甲基转移酶活性。 次黄嘌呤与尿酸和过氧化氢的偶联氧化任选地使用纯化或重组的黄嘌呤氧化酶来影响,其中甲基转移酶活性是速率限制的,并且其中确定甲基转移酶活性包括监测偶联的氧化反应。 公开的变化包括监测反应产物(例如,检测NH 3,次黄嘌呤,H 2 O 2和尿酸)。
    • 8. 发明申请
    • GENOMIC ENRICHMENT METHOD, COMPOSITION, AND REAGENT KIT
    • 基因组培养方法,组合物和试剂盒
    • US20140038241A1
    • 2014-02-06
    • US13958553
    • 2013-08-03
    • Zhaohui ZhouQun Shan
    • Zhaohui ZhouQun Shan
    • C12P19/34C12N9/16
    • C12P19/34C12N9/16C12N9/22C12Q1/6806C12Y301/21C12Q2521/301C12Q2521/543C12Q2522/101
    • By using engineered sequence specific DNA nuclease (“SSDN”), the composition, reagent kit and method of the present invention can cut and release a DNA sequence of interest 1×104-1×107-base pairs long from a source DNA as large as the whole genome. The SSDN further includes an affinity tag or is bound to a solid support that facilitates the isolation of the DNA sequence of interest. The SSDN can include a RecA and Ref combination, a transcription activator like effector nuclease, or a sequence specific chemical nuclease. When applied to genomic sequencing, specific region(s) of interest in the genome can be cut and isolated. Because the irrelevant part of the genome is removed from the sequencing reaction, the speed, cost, and accuracy of genomic sequencing can be improved.
    • 通过使用工程序列特异性DNA核酸酶(“SSDN”),本发明的组合物,试剂盒和方法可以从源DNA中切下并释放出1×104-1×107碱基对长的DNA序列 作为全基因组。 SSDN还包括亲和标签或者结合固体支持物,其有利于分离所关注的DNA序列。 SSDN可以包括RecA和Ref组合,转录激活物如效应核酸酶或序列特异性化学核酸酶。 当应用于基因组测序时,可以切割和分离基因组中感兴趣的特定区域。 因为从测序反应中去除了基因组的不相关部分,因此可以提高基因组测序的速度,成本和准确性。