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    • 1. 发明申请
    • MEANS FOR DETECTING FAMILIAL COLON CANCER (FCC)
    • 检测家族性癌症(FCC)的手段
    • WO1994025625A1
    • 1994-11-10
    • PCT/US1994004785
    • 1994-05-02
    • THE JOHNS HOPKINS UNIVERSITYDE LA CHAPELLE, Albert
    • THE JOHNS HOPKINS UNIVERSITYVOGELSTEIN, BertKINZLER, Kenneth, W.
    • C12Q01/68
    • C12Q1/683A61K38/00C07K14/82C12Q1/6886C12Q2600/112C12Q2600/156C12Q2600/172
    • Markers of chromosome 2 are associated with cancer predisposition, as shown by linkage analysis, in a significant fraction of families with a history of colon and other cancers. Tumors from these patients progressed through the same series of accumulated mutations in oncogenes and tumor suppressor genes found in non-familial cases, but showed no losses of heterozygosity for the linked chromosome 2 markers. DNA from the tumors (but not normal tissues) in most familial cases revealed a consistent and distinct abnormality: rearrangemnets in short repeated sequences throughout their genomes. This abnormality suggests that a large number of replication errors had occurred during tumor development. Methods are presented for detecting the presence of the gene which predisposes people to have a colon and other tumors and for utilizing this information for diagnostic, prognostic, and preventive purposes. DNA markers useful for such methods are also described.
    • 染色体2的标记与癌症倾向相关,如通过连锁分析所显示的,具有结肠和其他癌症病史的家族的很大一部分。 来自这些患者的肿瘤通过在非家族性病例中发现的致癌基因和肿瘤抑制基因的相同序列的累积突变进行,但是对于连锁的2号染色体标记物,没有显示出杂合性的损失。 在大多数家族性病例中,肿瘤(但不是正常组织)的DNA显示出一致和明显的异常:在整个基因组中以短的重复序列重新排列。 这种异常表明在肿瘤发展过程中发生了大量的复制错误。 提出了用于检测易患人群具有结肠和其他肿瘤的基因的存在并用于诊断,预后和预防目的的方法。 还描述了对这些方法有用的DNA标记。
    • 8. 发明申请
    • SAFE SEQUENCING SYSTEM
    • 安全排序系统
    • WO2012142213A2
    • 2012-10-18
    • PCT/US2012/033207
    • 2012-04-12
    • THE JOHNS HOPKINS UNIVERSITYVOGELSTEIN, BertKINZLER, Kenneth W.PAPADOPOULOS, NickolasKINDE, Isaac
    • VOGELSTEIN, BertKINZLER, Kenneth W.PAPADOPOULOS, NickolasKINDE, Isaac
    • C12Q1/68C12N15/11
    • C12Q1/6874C12Q1/6806C12Q1/6869C12Q1/6876C12Q2563/179C12Q2600/158C12Q2535/122C12Q2565/514
    • The identification of mutations that are present in a small fraction of DNA templates is essential for progress in several areas of biomedical research. Though massively parallel sequencing instruments are in principle well-suited to this task, the error rates in such instruments are generally too high to allow confident identification of rare variants. We here describe an approach that can substantially increase the sensitivity of massively parallel sequencing instruments for this purpose. One example of this approach, called "Safe-SeqS" for (Safe-Sequencing System) includes (i) assignment of a unique identifier (UID) to each template molecule; (ii) amplification of each uniquely tagged template molecule to create UID-families; and (iii) redundant sequencing of the amplification products. PCR fragments with the same UID are truly mutant ("super-mutants") if ≥95% of them contain the identical mutation. We illustrate the utility of this approach for determining the fidelity of a polymerase, the accuracy of oligonucleotides synthesized in vitro , and the prevalence of mutations in the nuclear and mitochondrial genomes of normal cells.
    • 存在于DNA模板的一小部分中的突变的鉴定对于在几个生物医学研究领域的进展是必不可少的。 尽管大规模并行测序仪器原则上非常适合于此任务,但是这些仪器中的错误率通常太高,无法确定罕见的变体。 我们在这里描述了一种可以显着增加大规模并行测序仪器对此目的的灵敏度的方法。 这种方法的一个例子是(Safe-Sequencing System),称为“Safe-SeqS”,包括(i)将唯一标识符(UID)分配给每个模板分子; (ii)每个唯一标记的模板分子的扩增以产生UID家族; 和(iii)扩增产物的冗余测序。 具有相同UID的PCR片段是真正的突变体(“超突变体”),如果其中95%含有相同的突变。 我们说明了这种方法用于确定聚合酶的保真度,体外合成的寡核苷酸的准确性以及正常细胞的核和线粒体基因组中突变的流行率的效用。