Sorbent and method for the separation of plasmid dna

C - Chemistry – Metallurgy – 12 – N

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C12N 15/10 (2006.01) B01D 15/22 (2006.01) B01J 20/283 (2006.01) B01J 20/284 (2006.01) B01J 20/285 (2006.01) C07H 21/04 (2006.01) C08L 33/14 (2006.01) C08L 33/24 (2006.01) C12N 7/00 (2006.01)

Patent

CA 2508135

A polymer that is useful for separating plasmid DNA from cell lysates can be dispersed throughout the pores of a porous matrix, forming a chromatographic sorbent. Illustrative of such a polymer is one that comports with the formula (I): where R1 is C1-6 alkyl; each R2 is independently selected from the group consisting of H and C1-6 alkyl, optionally substituted with 1 to 3 OH groups; R3 is selected from H, C1-14 alkyl, and (C1-14 alkyl)aryl; each n is independently an integer from 1 to 6; a is at least 1; b is at least 1; w is an integer from 0 to 10; and z is at least 1. X is an anion; each Y is independently selected from the group consisting of H, C1-6 alkyl, and a linear homopolymer comprised of monomers, each of them substituted with pendant amines, provided that at least one Y is the linear homopolymer; and "-- ---" represents the remainder of the polymer.

L'invention concerne un polymère utile pour séparer l'ADN de plasmide de lysats de cellules peut être dispersé dans tous les pores d'une matrice poreuse, formant un sorbant chromatographique. Un exemple d'un tel polymère est un de ceux qui comporte avec la formule (I) : là où R1 représente un alkyle, en C¿1-6?, R?2¿ représente un groupe, indépendamment choisi parmi les groupes constitués de h et de C¿1-6? alkyle, éventuellement substitué avec 1 à 3 groupes, R 3 représente groupe H, un alkyle en C¿1-14?, et (C¿1-14? alkyl)aryle, chaque n est indépendamment un nombre entier de 1 à 6, a est au moins 1, b est au moins 1, w représente un nombre entier de 0 à 10, et z vaut au moins 1. X est un anion, chaque Y est indépendamment choisi dans le groupe de H, alkyle en C¿1-6? et un homopolymère linéaire constitué de monomères, chacune d'eux substitué d'amines pendantes, à condition que au moins un Y soit l'homopolymère linéaire, et "-----" représente le reste du polymère.

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