会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明申请
    • PURIFICATION OF SUPERCOILED PLASMID DNA
    • 超滤PLASMID DNA的纯化
    • WO2010046918A1
    • 2010-04-29
    • PCT/IN2009/000558
    • 2009-10-08
    • V. B. MEDICARE PVT. LTD.GUPTA, Munishwar, NathSINGH, Pradeep, K.RAGHAVA, Smita
    • GUPTA, Munishwar, NathSINGH, Pradeep, K.RAGHAVA, Smita
    • C12P19/34C12N15/10
    • C12N15/1003
    • This invention comprises a process of purifying supercoiled plasmid DNA of purity and characteristics required for use in a DNA vaccine or in Gene Therapy or in uses where high purity supercoiled plasmid DNA is required, from a genetically transformed bacterium over-expressing the said supercoiled plasmid and the supercoiled plasmid DNA prepared by a process of this invention and products containing supercoiled DNA made by a process of this invention. The process of this invention comprises selective precipitation from a cell lyste of all DNA and endotoxin except supercoiled DNA by free metal ions. The said impurity comprising plasmid isoforms (linear, relaxed), genomic DNA, RNA, and an endotoxin from a host cell. The method is illustrated by using Cu 2+ metal ions. The said Cu 2+ metal ions were added as CuSO 4 to reach to a final concentration of at least 0.5 M. The removal of metal ions is achieved by dialysis.
    • 本发明包括从过表达所述超螺旋质粒的遗传转化细菌中纯化在DNA疫苗中或基因治疗或需要高纯度超螺旋质粒DNA的用途中纯化和特征所需的超螺旋质粒DNA的方法,以及 通过本发明方法制备的超螺旋质粒DNA和含有本发明方法制备的超螺旋DNA的产物。 本发明的方法包括通过游离金属离子从超螺旋DNA除去所有DNA和内毒素的细胞裂解物的选择性沉淀。 所述杂质包含来自宿主细胞的质粒同种型(线性,松弛),基因组DNA,RNA和内毒素。 该方法通过使用Cu2 +金属离子来说明。 将所述Cu 2+金属离子作为CuSO 4加入到达到至少0.5M的终浓度。通过透析去除金属离子。
    • 3. 发明申请
    • METHODS AND KITS FOR TUNING PERMEABILIZATION OF CELLS BY THREE PHASE PARTITIONING
    • 用于通过三相分级调节细胞渗透的方法和工具
    • WO2010046920A1
    • 2010-04-29
    • PCT/IN2009/000560
    • 2009-10-08
    • V.B. MEDICARE PVT. LTD.GUPTA, Munishwar, NathRAGHAVA, Smita
    • GUPTA, Munishwar, NathRAGHAVA, Smita
    • C12N1/06C12N1/32C12Q1/00
    • C12N1/06C12N1/32C12P1/02C12P1/04C12P21/02C12Q1/00C12Q1/32
    • The invention discloses a process of selective and sequential permeabilization of cells by treating them with a water miscible aliphatic alcohol for a period of time and isolation, purification and recovery of a peptide or/and protein in active form from the permeabilized out components of cells or/and from the permeabilized cells by Three Phase Partitioning to the permeabilized aqueous cell suspension comprising steps of addition of an anti-chaotropic salt to the permeabilized aqueous permeabilized cell suspension to form an aqueous bottom phase, an organic top phase and an intermediate phase between the said lower and top phases. The molecular species of interest or a fraction of the cell of interest is recovered from the appropriate fraction. The said aliphatic alcohol comprises preferably t-butanol, and the said anti-chaotropic salt preferably comprises ammonium sulphate. The peptides and proteins are separated in an active form and with high purity. This invention also comprises a Process of whole cell biocatalysis with high specific activity wherein the permeabilized cells retaining high molecular weight enzymes are used for catalysis.
    • 本发明公开了一种通过用水混溶性脂肪醇处理一段时间来选择性和顺序地透化细胞的方法,并从细胞的透化组分分离,纯化和回收活性形式的肽或/和蛋白质,或 并且通过三相分离从透化细胞到渗透的水性细胞悬浮液,包括以下步骤:向透化的透水化细胞悬浮液中加入抗离液序列盐以形成水相底部相,有机顶相和中间相 表示较低和最高阶段。 从适当的级分回收感兴趣的分子物质或目的细胞的一部分。 所述脂族醇优选包含叔丁醇,所述抗离液序列盐优选包含硫酸铵。 肽和蛋白质以活性形式和高纯度分离。 本发明还包括具有高比活性的全细胞生物催化过程,其中将保留高分子量酶的透化细胞用于催化。