Automated system for HTP genomic engineering

Patent metadata

Field	Value
Publication number	US-10745694-B2
Application number	US-201916697570-A
Country	US
Kind code	B2
Filing date	Nov 27, 2019
Priority date	Dec 7, 2015
Publication date	Aug 18, 2020
Grant date	Aug 18, 2020

Abstract

The present disclosure provides a HTP microbial genomic engineering platform that is computationally driven and integrates molecular biology, automation, and advanced machine learning protocols. This integrative platform utilizes a suite of HTP molecular tool sets to create HTP genetic design libraries, which are derived from, inter alia, scientific insight and iterative pattern recognition. The HTP genomic engineering platform described herein is microbial strain host agnostic and therefore can be implemented across taxa. Furthermore, the disclosed platform can be implemented to modulate or improve any microbial host parameter of interest.

First claim

What is claimed is:

1. An automated system for improving the phenotypic performance of a microbial strain, the system comprising a memory and a processor in communication with the memory, the processor configured to:
a. receive data associated with a parental lineage microbial strain and a production microbial strain derived therefrom, wherein the data associated with the production microbial strain comprises data representing a plurality of identified genetic variations selected from single nucleotide polymorphisms, DNA insertions, and DNA deletions, not present in the parental lineage microbial strain;
b. define an initial library of microbial strains as a result of perturbing the genome of either the parental lineage microbial strain, or the production microbial strain, wherein each strain in the initial library comprises a genetic variation unique from amongst the plurality of identified genetic variations between the parental lineage microbial strain and the production microbial strain;
c. identify, based on screening and selecting individual strains of the initial library for phenotypic performance improvements over a reference microbial strain, genetic variations that confer phenotypic performance improvements;
d. define a subsequent library of microbial strains, wherein each strain in the subsequent library comprises a combination of genetic variations from the genetic variations present in at least two individual microbial strains from a library of microbial strains of a preceding step;
e. identify, based on screening and selecting individual strains of the subsequent library for phenotypic performance improvements over the reference microbial strain, combinations of genetic variations that confer additional phenotypic performance improvements; and
f. repeat steps d)-e) one or more times, in a linear or non-linear fashion, until an improved microbial strain exhibiting a desired level of improved phenotypic performance compared to the phenotypic performance of the production microbial strain is identified, wherein each subsequent iteration defines a new library of microbial strains, where each strain in the new library comprises genetic variations that are a combination of genetic variations selected from amongst at least two individual microbial strains of a preceding library.

2. The system of claim 1 , wherein the system is robotic.

3. The system of claim 1 , comprising: liquid handlers in communication with the processor.

4. The system of claim 1 , comprising: one or more robotic arms in communication with the processor.

5. The system of claim 1 , comprising: integrated thermal cyclers in communication with the processor.

6. The system of claim 1 , comprising robotics in communication with the processor, said robotics comprising: plate handlers for the positioning of microplates, plate sealers, plate piercers, automated lid handlers adapted to remove and replace lids for wells on non-cross contamination plates, disposable tip assemblies for sample distribution with disposable tips, washable tip assemblies for sample distribution, 96 well loading blocks, cooled reagent racks, microtiter plate pipette positions, cooled microtiter plate pipette positions, stacking towers for plates and tips, magnetic bead processing stations, filtrations systems, plate shakers, barcode readers and applicators, and/or computer systems.

7. The system of claim 1 , comprising: automated liquid and particle handling robotics in communication with the processor, said robotics enabling high-throughput pipetting to perform all the steps in a process of gene targeting and recombination applications.

8. The system of claim 7 , wherein the processor is configured to send a signal to the liquid and particle handling robotics to cause the liquid and particle handling robotics to conduct: liquid and particle manipulations, aspiration, dispensing, mixing, diluting, washing, accurate volumetric transfers, retrieving and discarding of pipette tips, and/or repetitive pipetting of identical volumes for multiple deliveries from a single sample aspiration.

9. The system of claim 1 , wherein the system comprises robotics in communication with the processor, said robotics being compatible with platforms for multi-well plates, deep-well plates, square well plates, reagent troughs, test tubes, mini tubes, microfuge tubes, cryovials, filters, microarray chips, optic fibers, beads, agarose and acrylamide gels, or other solid-phase matrices or platforms.

10. The system of claim 1 , comprising a high-throughput electroporation system in communication with the processor.

11. The system of claim 1 , wherein the genome of at least one microbial strain of either the initial library or a subsequent library comprises one or more promoters from a promoter ladder operably linked to an endogenous target gene.

12. The system of claim 1 , wherein the genome of either the parental lineage microbial strain, or the production microbial strain, is perturbed utilizing at least one method selected from the group consisting of: random mutagenesis, targeted sequence insertions, targeted sequence deletions, targeted sequence replacements, and combinations thereof.

13. The system of claim 1 , wherein the genome of either the parental lineage microbial strain, or the production microbial strain, is perturbed utilizing gene editing technologies selected from the group consisting of ZFNs, TALENS, and CRISPR, to selectively edit target DNA regions.

14. An automated system for high-throughput (HTP) genomic engineering to evolve a microbe to acquire a desired phenotype, the system comprising a memory and a processor in communication with the memory, the processor configured to:
a. define an initial HTP genetic design microbial stain library as a result of perturbing the genomes of an initial plurality of microbes having the same microbial strain background, the initial HTP genetic design microbial strain library comprising individual microbial strains with unique genetic variations;
b. identify, based on screening and selecting the individual microbial strains of the initial HTP genetic design microbial strain library, an initial subset of individual microbial strains for the desired phenotype;
c. define a subsequent HTP genetic design microbial strain library, wherein each strain in the subsequent HTP genetic design microbial strain library comprises a unique combination of genetic variations, said genetic variations selected from the genetic variations present in at least two individual microbial strains from an HTTP genetic design microbial strain library of a preceding step;
d. identify, based on screening and selecting the individual microbial strains of the subsequent HTP genetic design microbial strain library, a subsequent subset of individual microbial strains for the desired phenotype; and
e. repeat steps c)-d) one or more times, in a linear or non-linear fashion, until a microbe has acquired the desired phenotype, wherein each subsequent iteration defines a new HTP genetic design microbial strain library comprising individual microbial strains harboring unique genetic variations that are a combination of genetic variations selected from amongst at least two individual microbial strains of a preceding HTP genetic design microbial strain library.

15. The system of claim 14 , wherein the system is robotic.

16. The system of claim 14 , comprising: liquid handlers in communication with the processor.

17. The system of claim 14 , comprising: one or more robotic arms in communication with the processor.

18. The system of

Assignees

• Zymergen Inc

Inventors

• Serber Zach
• Dean Erik Jedediah
• Manchester Shawn
• Gora Katherine
• Flashman Michael
• Shellman Erin
• Kimball Aaron
• Szyjka Shawn
• Frewen Barbara
• Treynor Thomas
• Bruno Kenneth S

Classifications

• G01N2035/1053

  for separating part of the liquid, e.g. filters, extraction phase · CPC title

• G01N2035/1048

  using the transfer device for another function · CPC title

• G01N2035/1032

  Dilution or aliquotting · CPC title

• G01N2035/1027

  General features of the devices · CPC title

• C12M35/02

  Electrical or electromagnetic means, e.g. for electroporation or for cell fusion · CPC title