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    • 31. 发明授权
    • Polymerase compositions and uses thereof
    • 聚合酶组合物及其用途
    • US07312052B1
    • 2007-12-25
    • US08529767
    • 1995-09-18
    • Joseph A. SorgeRebecca Lynn Mullinax
    • Joseph A. SorgeRebecca Lynn Mullinax
    • C12P19/34C12Q1/68C07H21/02
    • C12Q1/686C12Q2521/319C12Q2521/101
    • 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。
    • 35. 发明授权
    • Method of irradiating biological specimens
    • 辐射生物标本的方法
    • US5288647A
    • 1994-02-22
    • US686491
    • 1991-04-17
    • William C. Zimlich, Jr.Joseph A. Sorge
    • William C. Zimlich, Jr.Joseph A. Sorge
    • C07K17/00C12Q1/68G01J1/04
    • 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。
    • 36. 发明授权
    • DNA cloning vectors with in vivo excisable plasmids
    • 具有体内可切除质粒的DNA克隆载体
    • US5128256A
    • 1992-07-07
    • US341261
    • 1989-04-20
    • William HuseJoseph A. SorgeJay M. Short
    • William HuseJoseph A. SorgeJay M. Short
    • C12N15/64C12N15/70
    • C12N15/70C12N15/64
    • Vectors are described that circumvent traditional DNA cloning and subcloning procedures, and that contain a unique DNA cartridge that permits both cloning of DNA directly into DNA sequences present within the cartridge, and in vivo removal and circularization of the cartridge thereby yielding an autonomously replicating structure. Because the DNA cartridge can include a wide variety of functional DNA sequences, the cloned DNA can be subjected to a plethora of molecular biological procedures without having to remove the cloned DNA from the cartridge thereby obviating the need to perform additional subcloning techniques. A particularly useful example of this type of vector is bacteriophage lambda containing the DNA cartridge.
    • 描述了可以克服传统DNA克隆和亚克隆程序的载体,并且其含有独特的DNA柱,其允许将DNA直接克隆到存在于盒内的DNA序列中,并且在体内移除和环化圆筒,从而产生自主复制的结构。 因为DNA盒可以包括多种功能性DNA序列,所以克隆的DNA可以经受大量的分子生物学过程,而不必从盒中除去克隆的DNA,从而避免进行附加亚克隆技术的需要。 这种载体的特别有用的实例是含有DNA盒的噬菌体λ。