Artificial chromosomes, uses thereof and methods for preparing artificial chromosomes
First Claim
1. A method of producing a product that is produced upon expression of a metabolic pathway, comprising culturing a cell comprising an artificial chromosome under conditions whereby the pathway is expressed to produce the product, wherein:
- the artificial chromosome is selected from the group consisting of a satellite artificial chromosome and a minichromosome;
the artificial chromosome comprises multiple copies of a heterologous gene or a plurality of heterologous genes; and
the heterologous genes encode proteins that comprise the metabolic pathway.
10 Assignments
0 Petitions
Accused Products
Abstract
Methods for preparing cell lines that contain artificial chromosomes, methods for preparation of artificial chromosomes, methods for purification of artificial chromosomes, methods for targeted insertion of heterologous DNA into artificial chromosomes, and methods for delivery of the chromosomes to selected cells and tissues are provided. Also provided are cell lines for use in the methods, and cell lines and chromosomes produced by the methods. In particular, satellite artificial chromosomes that, except for inserted heterologous DNA, are substantially composed of heterochromatin are provided. Methods for use of the artificial chromosomes, including for gene therapy, production of gene products and production of transgenic plants and animals are also provided.
272 Citations
37 Claims
-
1. A method of producing a product that is produced upon expression of a metabolic pathway, comprising culturing a cell comprising an artificial chromosome under conditions whereby the pathway is expressed to produce the product, wherein:
-
the artificial chromosome is selected from the group consisting of a satellite artificial chromosome and a minichromosome; the artificial chromosome comprises multiple copies of a heterologous gene or a plurality of heterologous genes; and the heterologous genes encode proteins that comprise the metabolic pathway. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
-
-
22. A method for producing a gene product or products comprising:
-
introducing satellite artificial chromosomes comprising DNA encoding the gene product or products into cells; and culturing the cells under conditions whereby the gene product or products are expressed. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
-
-
36. A method for producing a gene product, comprising introducing a satellite artificial chromosome into a cell;
- and culturing the cell under conditions whereby the gene product is expressed, wherein the satellite artificial chromosome comprises the gene.
-
37. A method for producing a gene product or products, comprising culturing a cell containing a satellite artificial chromosome comprising DNA encoding the gene product or products under conditions whereby the gene product or products are expressed, wherein the satellite artificial chromosome is produced by a method, comprising:
-
introducing one or more DNA fragments into a cell, wherein the DNA fragment or fragments cornprise a selectable marker; growing the cell under selective conditions to produce cells that have incorporated the DNA fragment or fragments into their genomic DNA; and selecting a cell that comprises a satellite artificial chromosome.
-
Specification