Methods and systems for analysis of chromatin

Patent metadata

Field	Value
Publication number	US-11739440-B2
Application number	US-202016897126-A
Country	US
Kind code	B2
Filing date	Jun 9, 2020
Priority date	Feb 12, 2018
Publication date	Aug 29, 2023
Grant date	Aug 29, 2023

Abstract

The present disclosure provides compositions, methods, systems, and devices for polynucleotide processing and analyte characterization from a single cell. Such polynucleotide processing may be useful for a variety of applications. The compositions, methods, systems, and devices disclosed herein generally describe barcoded oligonucleotides, which can be bound to a bead, such as a gel bead, useful for characterizing one or more analytes including, for example, protein (e.g., cell surface or intracellular proteins) and chromatin (e.g., accessible chromatin).

First claim

What is claimed is:

1. A method of analyzing nucleic acids, comprising:
(a) providing a partition comprising:
(i) a biological particle, wherein said biological particle comprises (1) an adapter-flanked genomic DNA molecule and (2) a nucleic acid molecule comprising a sequence of a perturbation agent, and wherein said biological particle is a cell, a cell nucleus, or a cell bead,
(ii) a first nucleic acid barcode molecule comprising a first barcode sequence, and
(iii) a second nucleic acid barcode molecule comprising a second barcode sequence;

(b) generating a first barcoded nucleic acid molecule comprising (i) a sequence of said adapter-flanked genomic DNA molecule or reverse complement thereof, and (ii) said first barcode sequence or reverse complement thereof; and
(c) generating a second barcoded nucleic acid molecule comprising (i) said sequence of said perturbation agent or reverse complement thereof, and (ii) said second barcode sequence or reverse complement thereof.

2. The method of claim 1 , wherein said perturbation agent is a CRISPR ribonucleic acid (crRNA), a CRISPR single guide ribonucleic acid (sgRNA), an antisense oligonucleotide (ASO), a small interfering RNA (siRNA), a short hairpin RNA (shRNA), a microRNA, a transcription activator-like effector nuclease (TALEN), or a zinc finger nuclease (ZFN).

3. The method of claim 1 , wherein said perturbation agent is a CRISPR ribonucleic acid (crRNA) or a CRISPR single guide ribonucleic acid (sgRNA).

4. The method of claim 1 , wherein said first barcode sequence and said second barcode sequence are a same sequence.

5. The method of claim 1 , wherein said first nucleic acid barcode molecule further comprises a first capture sequence that couples to said adapter-flanked genomic DNA molecule or a derivative thereof and said second nucleic acid barcode molecule further comprises a second capture sequence that couples to said nucleic acid molecule comprising said sequence of said perturbation agent or reverse complement thereof.

6. The method of claim 1 , wherein (c) comprises (i) using a first probe and a second probe to generate a probe-linked nucleic acid molecule comprising said sequence of said perturbation agent or reverse complement thereof, and (ii) using said probe-linked nucleic acid molecule and said second nucleic acid barcode molecule to generate said second barcoded nucleic acid molecule.

7. The method of claim 1 , wherein (b) comprises hybridizing or ligating said first nucleic acid barcode molecule to at least a portion of said adapter-flanked genomic DNA molecule.

8. The method of claim 1 , wherein (b) comprises performing one or more nucleic acid reactions using said first nucleic acid barcode molecule and said adapter-flanked genomic DNA molecule or a derivative thereof, wherein said one or more nucleic acid reactions comprises an extension reaction or a ligation reaction.

9. The method of claim 1 , wherein (c) comprises hybridizing or ligating said second nucleic acid barcode molecule to at least a portion of said nucleic acid molecule comprising said sequence of said perturbation agent or reverse complement thereof.

10. The method of claim 1 , wherein (c) comprises performing one or more nucleic acid reactions using said second nucleic acid barcode molecule and said nucleic acid molecule comprising said sequence of said perturbation agent or reverse complement thereof, wherein said one or more nucleic acid reactions comprises an extension reaction or a ligation reaction.

11. The method of claim 1 , wherein said method comprises, prior to (a), contacting said biological particle with a transposase complex to generate said adapter-flanked genomic DNA molecule.

12. The method of claim 11 , wherein said biological particle is permeable to said transposase complex and wherein said adapter-flanked genomic DNA molecule is generated in said biological particle.

13. The method of claim 12 , further comprising generating sequencing reads associated with (i) said sequence of said adapter-flanked genomic DNA molecule or reverse complement thereof and (ii) said sequence of said perturbation agent or reverse complement thereof.

14. The method of claim 13 , further comprising analyzing said sequencing reads to (i) identify said sequence of said perturbation agent or said reverse complement thereof, and (ii) identify said sequence of said adapter-flanked genomic DNA molecule or said reverse complement thereof as being associated with a region of accessible chromatin from said biological particle.

15. The method of claim 11 , further comprising sequencing (i) said first barcoded nucleic acid molecule or a derivative thereof and/or (ii) said second barcoded nucleic acid molecule or a derivative thereof.

16. The method of claim 15 , further comprising generating sequencing reads associated with (i) said sequence of said adapter-flanked genomic DNA molecule or reverse complement thereof and (ii) said sequence of said perturbation agent or reverse complement thereof.

17. The method of claim 16 , further comprising using said sequencing reads to (i) identify said sequence of said perturbation agent or said reverse complement thereof, and (ii) identify said sequence of said adapter-flanked genomic DNA molecule or said reverse complement thereof as being associated with a region of accessible chromatin from said biological particle.

18. The method of claim 1 , wherein said sequence of said perturbation agent is a sequence encoding for said perturbation agent.

19. The method of claim 1 , further comprising sequencing (i) said first barcoded nucleic acid molecule or a derivative thereof and/or (ii) said second barcoded nucleic acid molecule or a derivative thereof.

20. The method of claim 1 , wherein said partition is an aqueous droplet in an emulsion.

21. The method of claim 1 , wherein said partition is a well.

22. The method of claim 1 , wherein said partition comprises a support.

23. The method of claim 22 , wherein said first nucleic acid barcode molecule and said second nucleic acid barcode are attached to said support.

24. The method of claim 23 , wherein said support is a bead.

25. The method of claim 24 , wherein said bead is a gel bead.

26. The method of claim 25 , further comprising degrading said gel bead by applying a stimulus.

27. The method of claim 26 , wherein said stimulus is a chemical stimulus.

28. The method of claim 23 , further comprising releasing said first nucleic acid barcode molecule and second nucleic acid barcode molecule from said support.

29. The method of claim 23 , wherein said first nucleic acid barcode molecule and/or said second nucleic acid barcode molecule is releasably attached to said support through a labile bond.

30. The method of claim 29 , wherein said labile bond is selected from the group consisting of a thermally cleavable bond, a chemically labile bond, and a photo-sensitive bond.

31. A method of analyzing chromatin, comprising:
(a) contacting a biological particle comprising chromatin with a transposase complex to generate an adapter-flanked genomic DNA molecule in said biological particle, wherein said biological particle further comprises an exogenous nucleic acid molecule comprising a sequence of a perturbation agent, and wherein said biological particle is a cell, a cell nucleus, or a cell bead;
(b) p

Assignees

• 10X Genomics Inc

Inventors

• Bell Jason
• Mcdermott Geoffrey
• Meschi Francesca
• Pfeiffer Katherine
• Schnall-Levin Michael
• Zheng Xinying

Classifications

• C40B30/04 Primary

  by measuring the ability to specifically bind a target molecule, e.g. antibody-antigen binding, receptor-ligand binding · CPC title

• C07K14/70539

  MHC-molecules, e.g. HLA-molecules · CPC title

• C12N15/1037

  Screening libraries presented on the surface of microorganisms, e.g. phage display, E. coli display · CPC title

• C12N15/1055

  Protein x Protein interaction, e.g. two hybrid selection · CPC title

• C12N15/1065

  Preparation or screening of tagged libraries, e.g. tagged microorganisms by STM-mutagenesis, tagged polynucleotides, gene tags · CPC title