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    • 44. 发明授权
    • Polymerase compositions and uses thereof
    • 聚合酶组合物及其用途
    • US5556772A
    • 1996-09-17
    • US197791
    • 1994-02-16
    • Joseph A. SorgeRebecca L. Mullinax
    • Joseph A. SorgeRebecca L. Mullinax
    • C12N9/12C12Q1/68C12P19/34
    • C12N9/1252C12Q1/686
    • The subject invention provides novel compositions containing a mixture of (a) an enzyme that possesses substantial 3'-5' exonuclease activity (b) a DNA polymerase with less 3'-5' exonuclease activity than the enzyme with substantial 3'-5' exonuclease activity. Preferably, the DNA polymerase for inclusion in the compositions are DNA polymerases that substantially lack 3'-5' exonuclease activity. A preferred embodiment of the invention is a composition comprising the Taq DNA polymerase (isolated from Thermus aquaticus) and the Pfu DNA polymerase (isolated from Pyrococcus furiosus). Another aspect of the invention is to provide methods for synthesizing polynucleotides, typically DNA, using compositions comprising an enzyme that possesses substantial 3'-5' exonuclease activity and a DNA polymerase with less 3'-5' exonuclease activity than the enzymes possessing substantial 3'-5' exonuclease activity, preferably a DNA polymerase that substantially lacks 3'-5' exonuclease activity. Another aspect of the invention involves the use the subject method of polynucleotide synthesis to carry out the synthesis step in a polymerase chain reaction experiment. Yet another aspect of the invention is to provide kits for the synthesis of polynucleotides, wherein the kits comprise an enzyme that possesses substantial 3'-5' exonuclease activity and a DNA polymerase with less 3'-5' exonuclease activity than the enzyme possessing substantial 3'-5' exonuclease activity.
    • 本发明提供了包含(a)具有大量3'-5'核酸外切酶活性的酶的混合物的新型组合物(b)具有比实际3'-5'核酸外切酶活性大的3'-5'核酸外切酶活性的3' 核酸外切酶活性。 优选地,包含在组合物中的DNA聚合酶是基本上缺乏3'-5'核酸外切酶活性的DNA聚合酶。 本发明的优选实施方案是包含Taq DNA聚合酶(从Thermus aquaticus分离)和Pfu DNA聚合酶(从激烈热球菌分离的)的组合物。 本发明的另一方面是提供使用包含具有大量3'-5'核酸外切酶活性的酶的组合物和具有比具有实质3的酶的3'-5'外切核酸酶活性少的DNA聚合酶合成多核苷酸(通常为DNA)的方法 '-5'核酸外切酶活性,优选基本上缺乏3'-5'核酸外切酶活性的DNA聚合酶。 本发明的另一方面涉及使用聚合酶链反应实验中的多核苷酸合成的主题方法进行合成步骤。 本发明的另一方面是提供用于合成多核苷酸的试剂盒,其中所述试剂盒包含具有显着3'-5'核酸外切酶活性的酶和具有比具有实质性的酶的酶更少3'-5'外切核酸酶活性的DNA聚合酶 3'-5'核酸外切酶活性。
    • 45. 发明授权
    • Arbitrarily primed polymerase chain reaction method for fingerprinting
genomes
    • 用于指纹基因组的任意引物聚合酶链反应方法
    • US5487985A
    • 1996-01-30
    • US959119
    • 1992-10-09
    • Michael McClellandJohn T. WelshJoseph A. Sorge
    • Michael McClellandJohn T. WelshJoseph A. Sorge
    • C12Q1/68C12P19/34
    • C12Q1/689C12Q2600/156
    • A rapid method for generating a set of discrete DNA amplification products characteristic of a genome as a "fingerprint" comprises the steps of: priming target nucleic acid of a genome or from a cellular RNA preparation with an single-stranded primer to form primed nucleic acid such that a substantial degree of internal-mismatching occurs between the primer end the target nucleic acid; amplifying the primed nucleic acid by performing at least one cycle of polymerase chain reaction amplification; and amplifying the product of step (2) by performing at least about 10 cycles of polymerase chain reaction amplification. The method is known as the arbitrarily primed polymerase chain reaction (AP-PCR) method and is suitable for the identification of bacterial species and strains, including Staphylococcus and Streptococcus species, mammals and plants. The method of the present invention can identify species, cell types or tissues rapidly, using only a small amount of biological material, and does not require knowledge of the nucleotide sequence or other molecular biology of the nucleic acids of the organisms to be identified. The method can also be used to generate detectable polymorphisms for use in genetic mapping of animals and humans, and be used to detect differential gene expression within tissues
    • 用于产生一组基因组特征的离散DNA扩增产物作为“指纹”的快速方法包括以下步骤:用单链引物引发基因组或来自细胞RNA制备物的靶核酸以形成引发的核酸 使得目标核酸的引物末端之间发生相当程度的内部错配; 通过进行聚合酶链反应扩增的至少一个循环来扩增引发的核酸; 并通过进行至少约10个循环的聚合酶链反应扩增来扩增步骤(2)的产物。 该方法被称为任意引物的聚合酶链反应(AP-PCR)方法,适用于鉴定细菌和菌株,包括葡萄球菌和链球菌属,哺乳动物和植物。 本发明的方法可以使用仅少量生物材料快速鉴定物种,细胞类型或组织,并且不需要知道要鉴定的生物体的核酸的核苷酸序列或其他分子生物学。 该方法还可用于产生用于动物和人类遗传图谱的可检测多态性,并用于检测组织内差异基因表达
    • 46. 发明授权
    • Apparatus of irradiating biological specimens
    • 照射生物标本的装置
    • US5395591A
    • 1995-03-07
    • US999434
    • 1992-12-30
    • William C. Zimlich, Jr.Joseph A. Sorge
    • William C. Zimlich, Jr.Joseph A. Sorge
    • C07K17/00C12Q1/68G05D25/02
    • C07K17/00C12Q1/68Y10T436/25
    • A method of irradiating a biological specimen with ultraviolet, in particular a polynucleotide specimen selected from DNA or RNA, or optionally a protein. In the case where the specimen is DNA or RNA, or potentially proteins, the specimen is irradiated to cross-link the specimen to a substrate. In the case where the specimen is DNA, the specimen can also be irradiated to form thymine dimers. The method uses an apparatus which permits relatively precise control of the total ultraviolet dose received by the specimen, despite any changes of ultraviolet flux from the lamps which may occur from during any one experiment, or between a number of experiments. Thus, the method allows relatively highly reproducible results to be obtained.
    • 用紫外线照射生物样本的方法,特别是选自DNA或RNA的多核苷酸标本,或任选的蛋白质。 在标本是DNA或RNA或潜在的蛋白质的情况下,照射样品以将样品交联到基底上。 在标本为DNA的情况下,也可以照射样品以形成胸腺嘧啶二聚体。 该方法使用允许相对精确地控制由样品接收的总紫外线剂量的装置,尽管在任何一个实验期间或在多个实验之间可能发生来自灯的紫外线通量的任何变化。 因此,该方法允许获得相对高度可重复的结果。