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Recombinant Fusion Polypeptides Enable Bacteroides Cargo Secretion

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Summary

Recombinant Fusion Polypeptides Enable Bacteroides Cargo Secretion

What changed

USPTO published patent application US20260097087A1 disclosing recombinant fusion polypeptides engineered with secretion domains and heterologous cargo domains for enabling protein secretion from Bacteroides cells into extracellular environments. The application covers methods of manufacturing and using these fusion polypeptides for therapeutic applications including treatment of diseases and disorders. CPC classifications span multiple technical areas including microbiology, protein engineering, and pharmaceutical compositions.

Biotechnology companies developing microbial protein expression systems, live biotherapeutic products, or gut microbiome-based therapeutics should review this application for potential freedom-to-operate concerns. Research institutions working with Bacteroides host systems may need to consider licensing implications. The broad claim scope covering both composition and method-of-use could affect competitive positioning in the engineered microbiome space.

What to do next

  1. Monitor for patent grant status
  2. Review claims for freedom-to-operate analysis
  3. Evaluate licensing opportunities

Archived snapshot

Apr 9, 2026

GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.

← USPTO Patent Applications

RECOMBINANT FUSION POLYPEPTIDES FOR SECRETING SOLUBLE, HETEROLOGOUS CARGO

Application US20260097087A1 Kind: A1 Apr 09, 2026

Inventors

Weston R. Whitaker, William C. DeLoache, Zachary N. Russ, Lauren Popov, Ada Huang, David Zong, Jake Flood, John Dueber

Abstract

Methods and compositions comprising recombinant fusion polypeptides that are engineered to allow for heterologous cargo secretion from a Bacteroides cell, into an extracellular environment are provided. Provided methods and compositions include recombinant fusion polypeptides comprising a secretion domain and a heterologous cargo domain. Methods and compositions for using said recombinant fusion polypeptides, e.g., for the treatment of a disease and/or disorder, are also provided.

CPC Classifications

A61K 35/741 A61K 31/737 C12N 1/20 C12N 9/0069 C12N 15/62 C12P 21/02 G01N 33/6872 C07K 2319/036 C07K 2319/40 C07K 2319/50 C07K 2319/61 C12Y 113/12005

Filing Date

2023-09-22

Application No.

19114043

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Last updated

Classification

Agency
USPTO
Instrument
Notice
Legal weight
Non-binding
Stage
Final
Change scope
Minor
Document ID
US20260097087A1

Who this affects

Applies to
Biotechnology companies Pharmaceutical companies
Industry sector
3254.1 Biotechnology
Activity scope
Patent applications Protein engineering Microbial fermentation
Geographic scope
United States US

Taxonomy

Primary area
Intellectual Property
Operational domain
Legal
Topics
Biotechnology Pharmaceuticals Healthcare

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