Predicate |
Object |
assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_56ee5285e8e8edccb061046ff20da7a6 |
classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C12N2830-002 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C12N2800-30 |
classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C12N15-63 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C12Q1-6897 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07K14-505 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C12N15-90 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C12N15-65 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C12N15-85 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C12N15-907 |
classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12R1-91 |
classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12N5-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12N15-90 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12N15-85 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12N15-79 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12N15-67 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12N15-65 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12N15-63 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12N5-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12N5-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12Q1-68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12Q- http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12N15-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12N15-09 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07K- http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12N- http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07K14-505 |
filingDate |
1998-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b29354bd661ef3372a481cab99f2b363 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_25d2eb9168a1b157a24f4f4be806194d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_666b5f7a7a5890d0022663d07c6bfb30 |
publicationDate |
1999-06-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber |
CA-2252970-A1 |
titleOfInvention |
Optimization of cells for endogenous gene activation |
abstract |
The invention concerns a process for optimizing the gene expression in cells. A first aspect concerns a process for changing the expression of a nucleic acid sequence which is present endogenously in a eukaryotic cell by introduction of a heterologous expression control sequence into the genome of the cell by means of homologous recombination as well as site-specific recombinase-mediated excision of inserted foreign DNA and its replacement by further heterologous expression control sequences or/and amplification genes. In addition the invention concerns the introduction of one or several nucleic acid sequences to which an activator protein or an activator protein complex binds e.g. a hypoxia-inducible factor (HIF), into the genome of a eukaryotic cell by homologous recombination in order to change the expression of a target gene. Furthermore the invention concerns a process for testing the influence of 5' or 3' non-coding nucleic acid fragments on the expression of a target gene by determining the expression of a reporter gene. In addition the invention concerns a process for providing a DHFR-negative eukaryotic cell containing a recombinase target sequence as well as the expression of a nucleic acid sequence inserted into the recombinase target sequence. |
priorityDate |
1997-12-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type |
http://data.epo.org/linked-data/def/patent/Publication |