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    • 4. 发明授权
    • Method for producing enantiomer-pure aminoalcohols
    • 产生对映体纯氨基醇的方法
    • US07435835B2
    • 2008-10-14
    • US10587440
    • 2005-01-18
    • Rainer Stürmer
    • Rainer Stürmer
    • C07D333/18C07D333/24
    • C07D333/16
    • The invention relates to a process for preparing enantiomerically pure alcohol of the formula 1, which comprises (i) reducing the ketone of the formula 3to the racemic alcohol of the formula 4, (ii) enantioselectively acylating the racemic alcohol of the formula 4 with succinic anhydride in the presence of a lipase to give the succinic semiester of the formula 7, (iii) separating off the succinic semiester of the formula 7 from the unreacted enantiomer of the formula 4, (iv) reacting the enantiomerically pure alcohol of the formula 4 with methylamine to give the enantiomerically pure alcohol of the formula 1.
    • 本发明涉及一种制备式1对映体纯的醇的方法,其包括(i)将式3的酮还原成式4的外消旋醇,(ii)用琥珀酸对映选择性酰化式4的外消旋醇 在脂肪酶存在下,得到式7的琥珀酸半酯,(iii)将式7的琥珀酸半酯与式4的未反应的对映异构体分离,(iv)使式4的对映体纯的醇 与甲胺反应,得到式1的对映体纯的醇。
    • 7. 发明申请
    • Methods and compositions for analyzing AHASL genes
    • 用于分析AHASL基因的方法和组合物
    • US20050208506A1
    • 2005-09-22
    • US10805973
    • 2004-03-22
    • Chengyan ZhaoRobert AscenziBijay Singh
    • Chengyan ZhaoRobert AscenziBijay Singh
    • C12Q1/68C12P19/34
    • C12Q1/6876C12Q1/6895C12Q2600/156
    • The invention relates to methods and compositions for analyzing plant acetohydroxy acid synthase large subunit (AHASL) genes. In particular, the invention relates to methods for the detection of wild-type AHASL alleles and mutant AHASL alleles that encode imidazolinone-tolerant AHASL proteins. The methods involve the use of PCR amplification and novel compositions comprising allele-specific and gene-specific primers to detect the presence of mutant and/or wild-type alleles present at the individual AHASL genes of a plant. Specifically, the methods and compositions are useful for analyzing the three AHASL genes of Triticum aestivum and the two AHASL genes of Triticum turgidum ssp. durum.
    • 本发明涉及用于分析植物乙酰羟酸合酶大亚基(AHASL)基因的方法和组合物。 特别地,本发明涉及检测野生型AHASL等位基因的方法和编码咪唑啉酮耐受性AHASL蛋白的突变型AHASL等位基因。 所述方法包括使用PCR扩增和包含等位基因特异性和基因特异性引物的新型组合来检测存在于植物个体AHASL基因的突变体和/或野生型等位基因的存在。 具体地说,该方法和组合物可用于分析小麦Triticum aestivum的三种AHASL基因和Twiticum turgidum ssp的两种AHASL基因。 硬粒小麦
    • 10. 发明授权
    • Tetracycline-regulated transcriptional inhibitors
    • 四环素调节的转录抑制剂
    • US5789156A
    • 1998-08-04
    • US383754
    • 1995-02-03
    • Hermann BujardManfred Gossen
    • Hermann BujardManfred Gossen
    • A01K67/027C07K14/035C07K14/245C12N1/21C12N15/63C12N15/67C12N15/85C12Q1/68C07H21/04
    • C12N15/8509C07K14/005C07K14/245C12N15/63C12N15/635C12N15/67C12N15/85A01K2217/05A01K2217/075A01K2217/20A01K2267/01A01K2267/02A01K2267/03A01K2267/0393C07K2319/00C07K2319/09C07K2319/61C07K2319/71C07K2319/80C12N2710/16622C12N2830/003C12N2830/006Y10S435/81
    • Nucleic acid molecules and proteins useful for regulating the expression of genes in eukaryotic cells and organisms in a highly controlled manner are disclosed. In the regulatory system of the invention, transcription of a tet operator-linked nucleotide sequence is inhibited by a transcriptional inhibitor fusion protein composed of two polypeptides, a first polypeptide which binds to tet operator sequences either (i) in the absence but not the presence of tetracycline (or an analogue thereof) or (ii) in the presence but not the absence of tetracycline (or an analogue thereof), and a second polypeptide which directly or indirectly inhibits transcription in eukaryotic cells. In one embodiment, the fusion protein comprises a Tet repressor operatively linked to a transcriptional silencer polypeptide. In another embodiment, the fusion protein comprises a mutated Tet repressor operatively linked to a transcriptional silencer polypeptide. The fusion proteins of the invention are useful for reducing the level of transcription of a tet operator-linked target gene. Moreover, the fusion proteins of the invention can be used in combination with tetracycline-regulated transcriptional activator fusion proteins to allow for precise regulation of the expression of one or multiple target genes. Kits including the components of the regulatory system of the invention are also encompassed by the invention.
    • 公开了用于以高度受控的方式调节真核细胞和生物体中基因表达的核酸分子和蛋白质。 在本发明的调节系统中,tet操纵子连接的核苷酸序列的转录受到由两个多肽组成的转录抑制剂融合蛋白​​的抑制,所述两个多肽是结合tet操纵子序列的第一个多肽,(i)在不存在但不存在的情况下 的四环素(或其类似物)或(ii)在存在但不存在四环素(或其类似物)的情况下,以及在真核细胞中直接或间接抑制转录的第二多肽。 在一个实施方案中,融合蛋白包含可操作地连接到转录沉默子多肽的Tet阻遏物。 在另一个实施方案中,融合蛋白包含与转录沉默子多肽有效连接的突变Tet阻遏物。 本发明的融合蛋白可用于降低与tet操纵子连接的靶基因的转录水平。 此外,本发明的融合蛋白可以与四环素调节的转录激活物融合蛋白组合使用,以允许精确调节一个或多个靶基因的表达。 包括本发明的调节系统的组分的试剂盒也包括在本发明中。