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Human_Tissue_Nuclei_Isolation_Protocol_2021_10_18

Kimberly Paquette

Published: 2024-06-26 DOI: 10.17504/protocols.io.5qpvoboy7l4o/v1
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Abstract

Homebrew protocol to isolate nuclei from human frozen brain tissue.

Attachments

401-868.pdf

Steps

Stock Solutions

1.

10% Triton X-100 (100mL)

ABCD
SolutionFinal ConcVolumeNotes
Triton X-10010%10 mL
Ultrapure WaterFill to: 100 mL
2.

1Molarity (M) MgCl2 (100mL)

ABCD
SolutionFinal ConcVolumeNotes
MgCl2 (FW 203.31)1 M20.331 g203.31 g/1000 mL = 1 M 5.08275 g/100 mL = 1 M
Ultrapure WaterFill to: 100 mL

Working Solutions: PBSTA (3mL) without TritonX-100

3.

Note
*Use PBS without Calcium Chloride and Magnesium Chloride.

Note
Note : Store at 4°C for up to 1 month.

ABCD
SolutionFinal Conc1 RXN5.2 RXN
10x PBS1x300 uL1560 uL
1M MgCl23 mM9 uL46.8 uL
D-Sucrose (342.29)0.3 M0.3081 g1.602 g
** RNasein (add on day)0.4 U/uL30 uL156 uL
Ultrapure WaterFill to: 3 mLFill to: 5.6 mL

Add most of the Ultrapure water, then PBS, then MgCl2, then Sucrose.

4.

Vortex to dissolve.

5.

Then add Ultrapure water to final volume.

6.

Add RNasein before using.

Working Solutions: 1.4 M PBS Cushion (8 mL)

7.

Note
Note : Make fresh weekly.

ABCD
SolutionFinal Conc1 RXN5.2 RXN
10x PBS1x0.8 mL4.16 mL
1 M MgCl23 mM24 uL124.8 uL
D-Sucrose1.4 M3.8336 g19.935 g
10% Triton X-1000.10%80 uL416 uL
Ultrapure WaterFill to: 8 mLFill to: 41.6 mL

Add half of the Ultrapure water, then PBS, then MgCl2, then Sucrose.

8.

Vortex to dissolve.

9.

Then add 10% Triton.

10.

Then add Ultrapure water to final volume.

Working Solutions: Nuclei Wash and Resuspension Buffer

11.

Note
Note: Make fresh daily.

ABCD
SolutionFinal Conc1 RXN5.2 RXN
10x PBS1x400 uL2080 uL
50mg/uL Ultrapure BSA1%800 uL (40 mg)4160 uL
** RNasein (add on day)0.2 U/uL20 uL104 uL
Ultrapure WaterFill to: 4 mLFill to: 20.8 mL

Add most of the Ultrapure water, then PBS, then BSA.

12.

Tilt to dissolve, do not vortex.

13.

Add RNasein before using.

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