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    • 4. 发明授权
    • Method for detecting a substance having an activity to inhibit HIV infection using immunoassay and variant protein used for said method
    • 用于使用所述方法使用免疫测定法和变体蛋白检测具有抑制HIV感染活性的物质的方法
    • US06294341B1
    • 2001-09-25
    • US09272342
    • 1999-03-19
    • Yeon Gyu YuSung-Hou KimJae-Ryeon Ryu
    • Yeon Gyu YuSung-Hou KimJae-Ryeon Ryu
    • G01N3353
    • G01N33/532G01N2333/162G01N2500/00Y10S435/974Y10S530/826
    • The present invention relates to a method for detecting a substance having an activity to inhibit HIV infection rapidly, economically and safely. The present invention uses the characteristics that if a function of transmembrane protein gp41 of HIV is inhibited, HIV infection is also inhibited, and therefore the function of gp41 depends on the interaction between two helical structures of gp41. The method of the present invention is to detect a substance to inhibit HIV infection by an immunoassay using the interaction between the variant protein Trx-N, which is prepared by binding the N-terminal helical domain of gp41 to Trx (thioredoxin) and the variant protein GST-C, which is prepared by binding the C-terminal helical domain of gp41 with GST-C (Glutathione S-transferase). This immunoassay can be used for automatic detection of the substance to inhibit the activity of gp41 can be carried out by the method. As a result, it is possible to investigate HIV infection-inhibiting activity of a number of previously known compounds or natural compounds, and it can attribute to the development of therapeutic agent of HIV infection.
    • 本发明涉及一种经济,安全地检测具有抑制HIV感染活性的物质的方法。 本发明使用的特征是,如果HIV的跨膜蛋白gp41的功能被抑制,HIV感染也被抑制,因此gp41的功能取决于gp41的两个螺旋结构之间的相互作用。 本发明的方法是使用通过将gp41的N-末端螺旋结构域与Trx(硫氧还蛋白)结合而制备的变体蛋白Trx-N与变体蛋白Trx-N之间的相互作用,通过免疫测定来检测抑制HIV感染的物质, 蛋白GST-C,其通过将gp41的C末端螺旋结构域与GST-C(谷胱甘肽S-转移酶)结合而制备。 该免疫测定可用于自动检测物质以抑制gp41的活性,可通过该方法进行。 因此,可以研究一些先前已知的化合物或天然化合物的HIV感染抑制活性,并且可以归因于HIV感染治疗剂的发展。
    • 5. 发明授权
    • Gene coding for DNA ligase of hyperthermophilic bacteria Aquifex pyrophilus and protein expressed therefrom
    • 基因编码嗜热菌嗜酸菌的DNA连接酶Aquifex pyrophilus和由其表达的蛋白质
    • US06444429B1
    • 2002-09-03
    • US09708426
    • 2000-11-09
    • Ye-Sun HanYeon-Gyu YuJae-Hwan Lim
    • Ye-Sun HanYeon-Gyu YuJae-Hwan Lim
    • C12Q168
    • C12N9/93C12Q1/6876C12Q2521/501
    • The present invention relates to a gene coding for a thermostable DNA ligase from Aquifex pyrophilus, a hyperthermophilic Bacterium, a protein having an amino acid sequence expressed therefrom and a probe used for detecting said ligase DNA. More particularly, the present invention is directed to a gene having a base sequence of SEQ. ID. NO: 3 and a thermostable DNA ligase having an amino acid sequence expressed therefrom (SEQ. ID. NO: 4). Since Aquifex pyrophilus DNA ligase of the present invention has 75% of the ligation activity after heating at 95 ° C. for 1 hour, the ligase has higher stability than DNA ligases from the preexisting bacteria under high temperature and thus it can be advantageously used in genetic diseases assay of medical field, etc.
    • 本发明涉及编码来自Aquifex pyrophilus的热稳定DNA连接酶的基因,超嗜热细菌,具有由其表达的氨基酸序列的蛋白质和用于检测所述连接酶DNA的探针。 更具体地,本发明涉及具有SEQ ID NO:1的碱基序列的基因。 ID。 NO.3和具有由其表达的氨基酸序列的热稳定DNA连接酶(SEQ ID NO:4)。由于本发明的Aquifex pyrophilus DNA连接酶在95℃加热后具有75%的连接活性,为1 小时,连接酶在高温下比来自预先存在的细菌的DNA连接酶具有更高的稳定性,因此可有利地用于医疗领域的遗传疾病测定等。