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Title: Transgenic silkworms expressing spider silk

Patent ·
OSTI ID:1840348

Transgenic silkworms stably expressing synthetic spider silk genes or composite silkworm/spider silk genes are disclosed. The exogenous spider silk genes are stably intergrated into a defined site of the fibroin heavy chain intron or a fibroin light chain intron of silkworms. Synthetic spider silk proteins and composite spider silk-silkworm genes and proteins are provided. The expression of exogenous spider silk genes is driven by the endogenous fibroin heavy chain promoter, improving the genetic stability of transgenic silkworms. The composite silkworm/spider silk fibers exhibit exceptional mechanical performance, compared to normal silkworm silk fibers and other transgenic silkworm fibers.

Research Organization:
Utah State Univ., Logan, UT (United States)
Sponsoring Organization:
USDOE; National Science Foundation (NSF)
DOE Contract Number:
EE0006857; IIP1318194
Assignee:
Utah State University (Logan, UT)
Patent Number(s):
11,089,767
Application Number:
15/942,185
OSTI ID:
1840348
Resource Relation:
Patent File Date: 03/30/2018
Country of Publication:
United States
Language:
English

References (26)

Native-sized recombinant spider silk protein produced in metabolically engineered Escherichia coli results in a strong fiber journal July 2010
Chimeric spider silk and uses thereof patent-application August 2013
Methods, compositions and systems for production of recombinant spider silk polypeptides patent September 2015
Method and uses for Bombyx mori silk fibroin heavy chain mutation sequence and mutant patent-application June 2015
Engineering the Caenorhabditis elegans genome using Cas9-triggered homologous recombination journal September 2013
Obligate Ligation-Gated Recombination (ObLiGaRe): Custom-designed nuclease-mediated targeted integration through nonhomologous end joining journal November 2012
A protocol for the production of recombinant spider silk-like proteins for artificial fiber spinning journal February 2009
Heritable Genome Editing with CRISPR/Cas9 in the Silkworm, Bombyx mori journal July 2014
Targeted genome engineering in human cells with the Cas9 RNA-guided endonuclease journal January 2013
An optimized sericin-1 expression system for mass-producing recombinant proteins in the middle silk glands of transgenic silkworms journal February 2013
Expression of spider flagelliform silk protein in Bombyx mori cell line by a novel Bac-to-Bac/BmNPV baculovirus expression system journal June 2006
Expansion of CRISPR targeting sites in Bombyx mori journal May 2016
Method for establishing an expression system of spider dragline silk gene in bombyx mori patent March 2005
Development of germ-line-specific CRISPR-Cas9 systems to improve the production of heritable gene modifications in Arabidopsis journal September 2015
Transgenic silkworms (Bombyx mori) produce recombinant spider dragline silk in cocoons journal July 2009
Genome editing of BmFib-H gene provides an empty Bombyx mori silk gland for a highly efficient bioreactor journal October 2014
Probing the Impact of Acidification on Spider Silk Assembly Kinetics journal June 2015
Construct Synthetic Gene Encoding Artificial Spider Dragline Silk Protein and its Expression in Milk of Transgenic Mice journal January 2007
Nucleic acid encoding a silk protein and a method of producing a silk thread using same patent-application July 2013
Methods, Compositions and Systems for Production of Recombinant Spider Silk Polypeptides patent-application December 2016
Expression systems and methods of producing spider silk proteins patent-application April 2014
Spider Silk Fibers Spun from Soluble Recombinant Silk Produced in Mammalian Cells journal January 2002
Spider dragline silk proteins in transgenic tobacco leaves: accumulation and field production: Spider silk proteins in tobacco journal August 2004
Expression systems and associated methods patent-application April 2016
Decoding the secrets of spider silk journal March 2011
Transgenic Silkworms Capable of Producing Chimeric Spider Silk Polypeptides and Fibers patent-application November 2015

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