skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Robust expression of a bioactive mammalian protein in Chlamydomonas chloroplast

Patent ·
OSTI ID:1167243

Methods and compositions are disclosed to engineer chloroplast comprising heterologous mammalian genes via a direct replacement of chloroplast Photosystem II (PSII) reaction center protein coding regions to achieve expression of recombinant protein above 5% of total protein. When algae is used, algal expressed protein is produced predominantly as a soluble protein where the functional activity of the peptide is intact. As the host algae is edible, production of biologics in this organism for oral delivery of proteins/peptides, especially gut active proteins, without purification is disclosed.

Research Organization:
The Scripps Research Inst., La Jolla, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FG03-02ER15313
Assignee:
The Scripps Research Institute (La Jolla, CA)
Patent Number(s):
8,932,576
Application Number:
12/695,101
OSTI ID:
1167243
Resource Relation:
Patent File Date: 2010 Jan 27
Country of Publication:
United States
Language:
English

References (23)

Method for stably transforming plastids of multicellular plants patent September 1995
Enhanced expression in a plant plastid patent August 1996
Expression of Bacillus thuringiensis cry proteins in plant plastids patent August 1996
DNA constructs and methods for stably transforming plastids of multicellular plants and expressing recombinant proteins therein patent March 1999
Genomic mammary Amyloid a sequence patent May 2007
Transgenic algae for delivering antigens to an animal patent August 2008
Participation of nuclear genes in chloroplast gene expression journal June 2000
Contribution of 5′- and 3′-untranslated regions of plastid mRNAs to the expression of Chlamydomonas reinhardtii chloroplast genes journal October 2005
Transgenic Plastids in Basic Research and Plant Biotechnology journal September 2001
Translational regulations as specific traits of chloroplast gene expression journal September 2002
Co-variation of tRNA Abundance and Codon Usage inEscherichia coliat Different Growth Rates journal August 1996
tRNA gene number and codon usage in the C. elegans genome are co-adapted for optimal translation of highly expressed genes journal July 2000
Consecutive Low-usage Leucine Codons Block Translation Only When Near the 5′ End of a Message inEscherichia coli journal February 1995
Evolution of organellar genomes journal December 1999
Robust expression of a bioactive mammalian protein in Chlamydomonas chloroplast journal May 2007
The Chlamydomonas reinhardtii Plastid Chromosome : Islands of Genes in a Sea of Repeats journal October 2002
Development of a luciferase reporter gene, luxCt , for Chlamydomonas reinhardtii chloroplast journal December 2003
Controlled expression of plastid transgenes in plants based on a nuclear DNA-encoded and plastid-targeted T7 RNA polymerase. journal July 1994
Elevated extrahepatic expression and secretion of mammary-associated serum amyloid A 3 (M-SAA3) into colostrum journal December 2001
A robust protocol for site-directed mutagenesis of the D1 protein inChlamydomonas reinhardtii: A PCR-splicedpsbA gene in a plasmid conferring spectinomycin resistance was introduced into apsbA deletion strain journal November 1994
Chloroplast DNA codon use: Evidence for selection at the psb A locus based on tRNA availability journal September 1993
Stable chloroplast transformation in potato: use of green fluorescent protein as a plastid marker journal July 1999
High-frequency plastid transformation in tobacco by selection for a chimeric aadA gene. journal February 1993