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NUC201

Sigma-Aldrich

Nuclei Isolation Kit: Nuclei PURE Prep

sufficient for 15 nuclei preparations (~1-10×107 cells or 1g of tissue per preparation)

Synonym(s):

Sucrose centrifugation nuclei isolation

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1 KIT
R$5,408.00

R$5,408.00


Estimated to ship onMarch 30, 2025



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1 KIT
R$5,408.00

About This Item

UNSPSC Code:
12352207
NACRES:
NA.32

R$5,408.00


Estimated to ship onMarch 30, 2025


usage

sufficient for 15 nuclei preparations (~1-10×107 cells or 1g of tissue per preparation)

Quality Level

packaging

pkg of 1 kit

storage condition

dry at room temperature

application(s)

cell analysis

foreign activity

nuclease and protease, free

shipped in

wet ice

storage temp.

2-8°C

Application

For preparation of pure nuclei and fragile nuclei from cell lines and solid tissues.

Biochem/physiol Actions

The protocol incorporates centrifugation through a dense sucrose cushion to protect nuclei and strip away cytoplasmic contaminants. High yield has been obtained from common cell lines (Jurkat, HFN7.1, COS7, HEK293 and MDCK) and tissues (spleen and liver). These preparations are suitable for many cell biology applications, e.g., as a source of nuclear components such as chromatin, genomic DNA, histones, and nuclear RNA/RNP, produces nuclei for in vitro apoptosis assays, and functional studies such as examination of the transcriptional status of cells.
The protocol incorporates centrifugation through a dense sucrose cushion to protect nuclei and strip away cytoplasmic contaminants. The sucrose concentration that is suitable for a particular cell type is determined empirically by the user. The sucrose concentrate and sucrose cushion buffer give the user flexibility to modify the density of the sucrose cushion as appropriate. High yield has been obtained from common cell lines (Jurkat, HFN7.1, COS7, HEK293 and MDCK) and tissues (spleen and liver). These preparations are suitable for many cell biology applications, e.g., as a source of nuclear components such as chromatin, genomic DNA, histones, and nuclear RNA/RNP, produces nuclei for in vitro apoptosis assays, and functional studies such as examination of the transcriptional status of cells.

Kit Components Only

Product No.
Description

  • Nuclei PURE Lysis Buffer 180 mL

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Pricing

Pictograms

CorrosionEnvironment

Signal Word

Danger

Hazard Statements

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 2 - Eye Dam. 1 - Skin Irrit. 2

Storage Class Code

10 - Combustible liquids

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Nuclei from rat liver: isolation method that combines purity with high yield.
G Blobel et al.
Science (New York, N.Y.), 154(3757), 1662-1665 (1966-12-30)
Analysis of nuclear RNA, Chapter 14.
Robert E. Farrell, Jr., ed.
RNA Methodologies: A Laboratory Guide for Isolation and Characterization, 235-263 (1993)
Tyler G Ekins et al.
eLife, 9 (2020-11-06)
Type I lissencephaly is a neuronal migration disorder caused by haploinsuffiency of the PAFAH1B1 (mouse: Pafah1b1) gene and is characterized by brain malformation, developmental delays, and epilepsy. Here, we investigate the impact of Pafah1b1 mutation on the cellular migration, morphophysiology
Sundong Lin et al.
Diabetes & metabolism journal, 44(1), 158-172 (2019-11-09)
Epithelial-to-mesenchymal transition (EMT) is required for renal fibrosis, which is a characteristic of diabetic nephropathy (DN). Our previous study demonstrated that fibroblast growth factor 21 (FGF21) prevented DN associated with the suppressing renal connective tissue growth factor expression, a key
Identification of newly transcribed RNA.
Greenberg, M.E., and Bender, T.P., et al. et al.
Current Protocols in Molecular Biology, 4-4 (1987)

Articles

Centrifugation separates organelles based on size, shape, and density, facilitating subcellular fractionation across various samples.

Questions

1–8 of 8 Questions  
  1. What is the expected loss (%) of nuclei due resulting from the sucrose density gradient purification step? I am planning an experiment with small tissue masses (50-100mg, ~1x10^6 nuclei) and would like to optimise yield as much as possible. 

    1 answer
    1. Yield will vary between cell lines and sample types, so the expected loss must be determined empirically for each sample. The technical bulletin notes that typical nuclei yields are greater than 30%, but some cell lines and sample types may experience lower yields.

      Helpful?

  2. Is the kit compatible to frozen tissue stored in RNAlater?

    1 answer
    1. This kit has not been evaluated for use with frozen samples. It is highly recommended to use fresh tissue samples with product. The freezing and thawing processes could potentially damage many of the cells and nuclei, leading to the loss of functionality/stability of some nuclear molecules/entities.

      Helpful?

  3. Would the nuclei isolation protocol need to be modified when using NUC201 as an alternative to NUC101-1kt?

    1 answer
    1. The NUC201 and NUC101 kits are very different. NUC101 has two components—a different lysis buffer and a storage buffer. In contrast, NUC201 has a different lysis buffer and a total of 5 kit components. Additionally, DTT needs to be used, although it is listed as a required but not provided reagent. Instructions for Use will be included with each kit. If the procedure is not provided with the kit, a PDF of the kit instructions can be downloaded from the product detail pages for each kit. Due to the significant procedural differences, it is important to use the specific Instructions for Use for each kit.

      Helpful?

  4. Is it possible to split the sample in half if the right size tubes for one of the steps are not available?

    1 answer
    1. As per internal notes, the kit can be scaled down to as small as 1.5 ml tubes, provided that the centrifugation speed and time are not deviated from. For example, the sucrose cushion centrifugation step must be carried out for 45 minutes at 30,000 × g, preferably in an ultracentrifuge swinging rotor, as recommended in the Technical Bulletin.

      Helpful?

  5. Is there EDTA present in buffer L9286? Additionally, is the lysis buffer L9286 hypotonic or isotonic/hypertonic?

    1 answer
    1. The lysis buffer is an isoosmotic sucrose buffer and it does contain EDTA.

      Helpful?

  6. Is it possible to start the nuclei isolation process from animal tissue or cells by using a frozen sample or cell pellet (kept in -80°C)?

    1 answer
    1. The freezing and thawing processes could potentially damage many of the cells and nuclei, leading to the loss of nuclear components and possible contamination of the nuclei with cytoplasmic or other cellular components. Testing on NUC201 has been conducted on fresh tissue.

      Helpful?

  7. Is the kit compatible with Tris or DTT, as our internal protocol is not compatible with these components?

    1 answer
    1. The NUC201 kit is compatible with Tris as well as DTT. None of the components in the kit, such as sucrose, Triton X100, and glycerin, are known to be incompatible with Tris. Additionally, as these components do not contain sulfur, there is no reason to expect any incompatibility with DTT.

      Helpful?

  8. Is it possible to start with frozen tissue?

    1 answer
    1. It is probable that the freezing and thawing processes may harm a significant number of cells and nuclei, potentially resulting in the loss of nuclear components and/or contamination of the nuclei with cytoplasmic or other cellular components.

      Helpful?

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