Patents Assigned to A/S De Danske Sukkerfabrikker

Method for the expression of genes in plants, parts of plants, and plant cell cultures, and DNA fragments, plasmids, and transformed microorganisms to be used when carrying out the method, as well as the use thereof for the expression of genes in plants

Patent number: 4886753

Abstract: A method for the expression of genes in plants, parts of plants, and plant cell cultures, in which a DNA fragment is used comprising an inducible plant promoter of root nodule-specific genes, DNA-fragments comprising an inducible plant promoter, to be used when carrying out the method, said DNA-fragments being identical with, derived from or comprising a 5' flanking region of root nodule-specific genes of any origin as well as plasmids and transformed Agrobacterium rhizogenesstrain which can be used when carrying out the method.

Type: Grant

Filed: May 2, 1986

Date of Patent: December 12, 1989

Assignee: A/S De Danske Sukkerfabrikker

Inventors: Kjeld A. Marcker, Jens S. Jensen
Post-transcriptional heme regulated heterologous gene expression in yeast using the leg hemoglobin leader sequence

Patent number: 4849348

Abstract: A method for controlling the level of heterologous gene expression in yeast using a soybean leghemoglobin leader sequence and a suitable promotor. Levels of expression are controlled at the post-transcriptional level by adjusting the amount of heme in the yeast culture medium.

Type: Grant

Filed: June 13, 1986

Date of Patent: July 18, 1989

Assignee: A/S De Danske Sukkerfabrikker

Inventors: Kjeld A. Marcker, Erik O. Jensen

Method for the expression of genes in plants, parts of plants, and plant cell cultures, and DNA fragments, plasmids, and transformed microorganisms to be used when carrying out the method, as well as the use thereof for the expression of genes in plants

Post-transcriptional heme regulated heterologous gene expression in yeast using the leg hemoglobin leader sequence