Genetic reprogramming of bacterial biofilms

US11352397B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-11352397-B2
Application numberUS-201916713368-A
CountryUS
Kind codeB2
Filing dateDec 13, 2019
Priority dateApr 23, 2013
Publication dateJun 7, 2022
Grant dateJun 7, 2022

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

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Described herein are methods and compositions relating to engineered curli fibers, e.g. CsgA polypeptide. In some embodiments, the methods and compositions described herein relate to functionalized biofilms.

First claim

Opening claim text (preview).

What is claimed herein is: 1. An engineered CsgA polypeptide comprising a wild-type Escherichia coli ( E. coli ) CsgA polypeptide with a C-terminal display tag flanking the CsgA, wherein the display tag comprises an activity polypeptide and a flexible polypeptide linker sequence, wherein the linker sequence is located N-terminal to the display tag, wherein the activity polypeptide comprises a binding domain selected from the group consisting of SpyTag peptide, metal binding domain (MBD) peptide, graphene binding peptide (GBP), carbon nanotube binding peptide (CBP), gold binding A3 peptide, ZnS quantum dot templating CT43 peptide, FLAG affinity tag peptide, ZnS quantum dot templating Z8 peptide, CdS quantum dot templating E14 peptide, quartz/glass binding QBP1 peptide, hydroxyapatite templating CLP12 peptide, ice crystal binding AFP8 peptide, biotin acceptor peptide (BAP), biotin carboxyl carrier protein (BCCP), and a peptide comprising a LPXTG (SEQ ID NO: 23) motif. 2. The CsgA polypeptide of claim 1 , wherein the linker sequence consists of glycine and serine residues. 3. A composition comprising the engineered CsgA polypeptide of claim 1 . 4. The composition of claim 3 , wherein the composition comprises filaments comprising the engineered CsgA polypeptide of claim 1 . 5. The composition of claim 3 , wherein the composition comprises a proteinaceous network. 6. The composition of claim 3 , wherein the composition further comprises proteinaceous biofilm components. 7. The composition of claim 3 , wherein the composition further comprises an engineered microbial cell comprising a vector or nucleic acid sequence encoding the engineered CsgA polypeptide. 8. The composition of claim 3 , wherein the composition further comprises a functionalizing polypeptide comprising an interacting domain.

Assignees

Inventors

Classifications

  • Antibacterial agents · CPC title

  • C07K14/245Primary

    Escherichia (G) · CPC title

  • containing a domain for self-assembly, e.g. a viral coat protein (includes phage display) · CPC title

  • containing a tag with affinity for a non-protein ligand · CPC title

  • from Pseudomonadaceae (F) · CPC title

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What does patent US11352397B2 cover?
Described herein are methods and compositions relating to engineered curli fibers, e.g. CsgA polypeptide. In some embodiments, the methods and compositions described herein relate to functionalized biofilms.
Who is the assignee on this patent?
Harvard College
What technology area does this patent fall under?
Primary CPC classification C07K14/245. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Jun 07 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 7 related publications on this page (citations in our corpus or others sharing the same primary CPC).