Shop All Cell Lysis & Organelle Isolation Reagents

LanthaScreen™ Cellular Assay Lysis Buffer (6X)

LanthaScreen® 6X Cellular Assay Lysis buffer is specially formulated for use with LanthaScreen® Cellular Assays.

Y-PER™ Yeast Protein Extraction Reagent (Thermo Scientific™)

Thermo Scientific Y-PER Yeast Protein Extraction Reagent is the first commercially available yeast lysis reagent using a mild detergent lysis procedure to efficiently release functionally active solubilized proteins.

Features of Y-PER Yeast Protein Extraction Reagent:

More protein—extracts more than twice as much protein as glass bead methods
Less hassle—eliminates the difficulties associated with traditional glass bead lysis (e.g., clinging static-charged beads, protein-bead clumps and runaway beads)
Optmized for yeast—validated for use with Saccharomyces cerevisiae, Schizosaccharomyces pombe and Pichia pastoris
Versatile—effective for many different organisms, including Bacillus subtilus and both Gram-positive and Gram-negative bacteria; suitable for use in a diverse range of situations

The detergent-based cell lysis buffer eliminates the need to use glass beads or mechanical treatments involving strong reducing agents, chemicals, pH and temperature extremes to disrupt the proteinaceous cell envelope required for protein extractions. The popular glass bead lysis protocol requires special equipment and must be performed at 4°C. The low yields of protein commonly obtained with this technique are the result of denaturation and proteins nonspecifically binding to the glass beads. However, Y-PER Reagent uses a simple room temperature protocol that can be completed in 20 minutes and requires no special equipment.

Y-PER Reagent offers an easy to use standard protocol for protein extractions involving addition of an appropriate volume of Y-PER Reagent to pelleted yeast cells, followed by incubation at room temperature for approximately 20 minutes and then spin down the debris. The resulting supernatant is a concentrated protein solution, surpassing typical yields obtained with traditional glass bead disruption.

The unicellular nature of yeast, combined with its ability to perform post-translational modifications that closely mimic processes in higher eukaryotes, have made them important research tools. The many vectors available, as well as the development of recombinant expression systems, have given yeast an irreplaceable role in the research sector.Y-PER Reagent is effective for S. cerevisiae and other popular species, making it applicable for use in fusion-tagged protein purification and reporter enzyme assays with these model organisms. The lysis reagent also can be used for genomic and plasmid DNA extraction from yeast.

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Y-PER™ Plus Dialyzable Yeast Protein Extraction Reagent

Cells-to-CT™ Bulk Lysis Reagents (Invitrogen™)

Cells-to-CT™ Bulk Lysis Reagents are components of the TaqMan® Gene Expression Cells-to-CT™ Kit, here made available as a separate purchase, in larger volumes than provided with the kit. The reagents included are: Lysis Solution, Stop Solution, and DNase. The TaqMan® Gene Expression Cells-to-CT™ Kit enables researchers to easily perform expression analysis using cultured cells without purification of RNA.

Y-PER™ Plus Dialyzable Yeast Protein Extraction Reagent (Thermo Scientific™)

Thermo Scientific Y-PER-Plus Dialyzable Yeast Protein Extraction Reagent effectively lyses yeast and bacterial cells to extract and solubilize proteins for analysis.

Features of Y-PER Plus Dialyzable Yeast Protein Extraction Reagent:

• Stable formulation designed for room temperature storage
• Yields protein extract with simple 20-minute hands-off incubation
• Requires no rigorous mechanical disruption or lengthy enzymatic treatments
• Tris-based buffer has a very low ionic strength and does not include sodium chloride
• Simple formulation contains no reducing agents or chelating agents
• Fully dialyzable formulation , allowing complete exchange of the extracted protein into any buffer required by downstream techniques
• Compatible with both the Thermo Scientific Pierce BCA and Coomassie Plus Protein Assays

Product Details (Recommendations for Use):
Fresh Cells and Frozen Cells: The Y-PER-Plus Reagent is capable of extracting proteins equally well from both freshly harvested and frozen cells
Cell Density and Strain Variation: Differences in growth rate among organisms, growth temperature and media composition affects the number of cells harvested from a given culture volume. Therefore several suggestions for the amount of Y-PER-Plus Reagent to use for a given cell pellet (wet cell paste) weight are included.
Pichia pastoris: To achieve lysis of cells grown in rich media such as YEPD, cells must be harvested during log-phase growth. To enhance lysis of cells in stationary phase, add DTT or TCEP-HCl (to a final concentration of 0.1M and 20 to 50 mM, respectively) directly to the Y-PER-Plus Reagent before lysis to release much more of the soluble proteins. For best results use 2.5 to 5.0 mL of Y-PER-Plus Reagent per 1 gram of cell paste; scale up or down accordingly. An alternative to adding reducing agents is adding a protease inhibitor and incubating at 45°C.
Saccharomyces cerevisiae: For best results, harvest cells in log-phase. To increase yield for cells in stationary-phase, add DTT or TCEP·HCl (to a final concentration of 0.1M and 20 to 50 mM, respectively) directly to the Y-PER-Plus Reagent before extraction. No differences in efficiency results for either rich- or synthetic-defined media. For best results use 2.5 to 5.0 mL of Y-PER Plus Reagent per 1 gram of cell paste; scale up or down accordingly.
Schizosaccharomyces pombe: For best results, use the original Y-PER Reagent (Part No. 78990) for extracting proteins from S. pombe.
Bacillus subtilis: The Y-PER-Plus Reagent will not extract protein from B. subtilis spores. When using a strain that is able to sporulate, harvest cells during log-phase. For strains unable to sporulate, cells may be grown to saturation before harvesting. Use 2.5 to 5.0 mL of Y-PER-Plus Reagent per 1g of cell paste; scale up or down accordingly.
Escherichia coli: Use 2.5 to 5.0 mL of Y-PER-Plus Reagent per 1g of cell paste; scale up or down accordingly.
Enzyme Activity: Because all proteins differ in structure, solubility and stability, a particular protein might not retain optimum activity in the presence of Y-PER-Plus Reagent. For example, the original Y-PER Reagent works well for assaying beta-galactosidase activity, but Y-PER-Plus Reagent slows down its kinetics. Y-PER-Plus Reagent is compatible with standard affinity-purification protocols for glutathione S-transferase (GST) and His-tagged proteins.

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Y-PER™ Yeast Protein Extraction Reagent

eBioscience™ 10X RBC Lysis Buffer (Multi-species) (Invitrogen™)

This 10X RBC Lysis Buffer (Multi-species) is specially formulated for optimal lysis of erythrocytes in single-cell suspensions of peripheral blood and hematopoietic tissues such as spleen. This buffer can be used for lysis of human, mouse, rat, canine, and non-human primate samples. 10X RBC Lysis Buffer (Multi-species) contains ammonium chloride, which lyses red blood cells with a minimal effect on lymphocytes when used as instructed.

Canine, Human, Mouse, Non-human primate, Rat, Rhesus

Reported Application
Flow Cytometric Analysis, Functional Assays, Cell Culture

Halt™ Phosphatase Inhibitor Cocktail (Thermo Scientific™)

Thermo Scientific Halt Phosphatase Inhibitor Cocktail preserves the phosphorylation state of proteins during and after cell lysis or tissue protein extraction.

Features of Halt Phosphatase Inhibitor Cocktail:

Devoid of protease inhibitors—To protect against both proteases and phosphatases, use Halt Protease and Phosphatase Inhibitor Cocktail.
Dialyzable— Either dialyze or desalt sample to effectively remove inhibitors from cell extracts before performing procedures that are discovered to be incompatible with cocktail components.
Supplied as a 100X concentrate—effective when used at a final concentration of 1X; however, samples that contain particularly high levels of phosphatase activity may require a final concentration of 2-3X.
Compatibility— compatible with most detergent-based cell lysis reagents, including all Thermo Scientific Pierce Cell Lysis Solutions.
All-in-one format—inhibits both serine-threonine phosphatases and protein tyrosine phosphatases
Compatiblewith popular protein assays—works with standard protein assays, including BCA and coomassie (Bradford) assays
Convenient storage—refrigerator (2 to 8°C) storage saves valuable space in the freezer and provides for immediate use
Multiple sizes—select a package size of the 100X cocktail that is ideal for any particular scale and workflow of protein extraction experiment

Halt Phosphatase Inhibitor Cocktail protects phosphoproteins from serine/threonine phosphatases as well as protein tyrosine phosphatases (PTPs) during cell lysis. The cocktail contains a mixture of four inhibitors of broad specificity, including sodium fluoride, sodium orthovanadate, sodium pyrophosphate and beta-glycerophosphate. Conveniently packaged in a 100X format, the cocktail is stable at 4°C and is suitable for use with any cell or tissue extract. The cocktail preserves protein phosphorylation in immunoprecipitation and kinase assays.

Phosphorylation and dephosphorylation comprise a molecular on/off switch that regulates many key biological pathways within the cell, including signal transduction, cell division and apoptosis. To effectively study phosphorylation activation states, one must inactivate phosphatases to prevent their uncontrolled activity upon cell lysis. Halt Phosphatase Inhibitor Cocktail accomplishes this task.

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Pierce™ Phosphatase Inhibitor Mini Tablets

Cells-to-CT Bulk RT Reagents (Invitrogen™)

Cells-to-CT Bulk RT Reagents are separately-available, large-quantity versions of the reagents used for reverse transcription in the TaqMan® Gene Expression Cells-to-CT™ Kit (20X RT enzyme mix and 20X RT buffer). These reagents are sufficient for 2500 RT reactions. When combined with the Cells-to- CT Bulk Lysis Reagents, these reagents can be easily incorporated into automated, high throughput applications.

eBioscience™ 1X RBC Lysis Buffer (Invitrogen™)

This 1X Red Blood Cell (RBC) Lysis Buffer is formulated for optimal lysis of erythrocytes in single-cell suspensions of mouse hematopoietic tissues such as spleen and human peripheral blood. This buffer contains ammonium chloride, which lyses red cells with minimal effect on lymphocytes when used as instructed. Nucleated red cells are not effectively lysed with ammonium chloride.

Reported Application
Flow Cytometric Analysis, Cell Culture

B-PER™ Reagent (in Phosphate Buffer) (Thermo Scientific™)

Thermo Scientific B-PER Reagent (in Phosphate Buffer) is an easy-to-use cell lysis reagent is a nonionic detergent-based solutions that effectively disrupt cells and solubilize native or recombinant proteins without denaturation. All B-PER Reagents are compatible with downstream applications, such as affinity chromatography (e.g., immobilized metal affinity chromatography, glutathione chromatography), SDS-PAGE, and protein quantification (e.g., Pierce BCA Protein Assay, Pierce 660nm Protein Assay). Depending on the particular application, protease inhibitors, salts, reducing agents, denaturants, and chelating agents may be added to the reagent.

Features of the B-PER Bacterial Protein Extraction Reagent:

• Detergent in sodium phosphate buffer; no enzyme components
• Amine-free formulation for direct compatibility of lysate with amine-reactive labeling and crosslinking

All Thermo Scientific B-PER Protein Extraction Reagents are:
Ready to use—one-step cell lysis of gram-positive and gram-negative bacteria using a mild, nonionic detergent (proprietary) in Tris or phosphate buffer formulations
Fast and simple—just add B-PER Reagent to a bacterial pellet, incubate with mixing for 10 to 15 minutes and recover soluble proteins after pelleting the cell debris
Convenient B-PER Complete Reagent contains lysozyme and a universal nuclease in a single formulation with 4°C storage
Excellent yields—recover recombinant proteins from bacterial lysates or purify inclusion bodies to near-homogeneous levels
Flexible—B-PER Reagents are suitable for any scale of protein extraction and are available in phosphate and 1X and 2X Tris formulations, with and without enzymes
Compatible—completely compatible with addition of protease inhibitors, and the resulting protein extract can be used in protein assays, typical affinity purification methods (e.g., GST, 6xHis) and other applications

Convenient, Ready-to-use Formats
B-PER Bacterial Extraction Reagents are more effective than traditional sonication and typical homemade lysis buffers, many of which include detergents and components that interfere with downstream applications. B-PER Reagents are formulated in Tris or phosphate buffer at physiological pH. They extract native and soluble recombinant proteins and yield lysates that are directly compatible with most downstream workflows such as electrophoresis, affinity purification, immunoprecipitation, protein interaction analysis, crosslinking and protein labeling.

More Product Data
Improved, all-in-one B-PER Reagent for bacterial protein extraction

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B-PER™ Bacterial Protein Extraction Reagent
B-PER™ Complete Bacterial Protein Extraction Reagent
B-PER™ II Bacterial Protein Extraction Reagent (2X)

DNA Extract All Reagents Kit (Applied Biosystems™)

The DNA Extract All Reagents Kit provides PCR-ready DNA from a wide variety of sample types, ranging from blood to buccal swabs to plant tissues in 5 minutes.

Simply mix your sample with the DNA lysis solution provided. Incubate for 3 minutes and add the DNA stabilizing solution, also provided.

After extraction, robust PCR amplification can be completed using TaqMan® GTXpress™ Master Mix or TaqMan® OpenArray® Genotyping Master Mix (pre-amplified sample only), depending on your application. PCR can be performed using either Fast or Standard mode thermal cycling conditions. The DNA Extract All Reagents Kit is included in the TaqMan Sample-to-SNP Kit, so workflow details can be found in the TaqMan® Sample-to-SNP user guide below.

This 200 mL size should be sufficient for 4000 extractions.

Note: Thermal cycling conditions should be followed according to the master mix being used. TaqMan®™ GTXpress™ Master Mix is required for PCR amplification of sample prepared using the DNA Extract All Reagents Kit. If sample has undergone preamplification, OpenArray® Genotyping Master Mix may also be used.

Halt™ Protease Inhibitor Cocktail, EDTA-free (100X) (Thermo Scientific™)

Thermo Scientific Halt Protease Inhibitor Cocktail, EDTA-free (100X) are ready-to-use concentrated stock solutions of protease inhibitors for addition to samples to prevent proteolytic degradation during cell lysis and protein extraction.

Features of Halt Protease Inhibitor Single-Use Cocktail, EDTA-free (100X):

Convenient —the refrigerator-stable, 100X liquid format is more effective and easier to use than individual inhibitors or other formats; just pipette exactly the amount you need
No proprietary ingredients—fully disclosed formulation contains optimized concentrations of six broad-spectrum protease inhibitors AEBSF, aprotinin, bestatin, E-64, leupeptin and pepstatin A stabilized in high-quality dimethylsulfoxide (DMSO)
Multiple package sizes—choose among several package sizes, including single-use microtubes that keep protease inhibitors fresh and reduce the risk of reagent contamination
EDTA-free formulations—ensures compatibility with isoelectric focusing
Lysis buffer compatible—use with Thermo Scientific Pierce Cell Lysis Buffers or nearly any other commercial or homemade detergent-based lysis reagent

• Protection of intact, active cellular proteins from degradation by endogenous proteases
• Inhibition of protease activity from lysates produced by a variety of methods including Thermo Scientific Pierce Cell Lysis Reagents, other commercially formulated cell or tissue lysis products, sonication, French press, blender homogenization or repetitive freeze/thaw cycling
• Screening of extracts for proteolytic activity
• The study of proteolysis in the regulation of cellular processes

Add 10 µL of concentrated cocktail per 1 mL of lysis buffer to ensure complete protection of the resulting protein extract. The single-use format is ideal for small-scale cell lysis experiments, where each 100 µL vial provides just what is needed for a 10 mL sample and there is no risk of contaminating or degrading remaining aliquots of cocktail. Each microtube in the strip is heat-sealed with a foil that can be easily punctured by a pipette tip for trouble-free access to a precise amount of Halt Protease Inhibitor Cocktail needed for each experiment.

Proteases make up a large category of enzymes, including endopeptidases and exopeptidases, which catalyze the hydrolytic breakdown of proteins into peptides or amino acids in a wide variety of cell and tissue types. Proteases are regulated and compartmentalized in living cells, but cell lysis releases and mixes them with other extracted proteins. Their activity can thus lead to the loss of a large number of valuable proteins, adversely affecting downstream applications. For this reason, it is common practice to spike cell lysis buffers or cell extracts with a cocktails of compounds known to inactivate or inhibit proteases. Halt Protease Inhibitor Cocktails effectively inhibit serine-proteases, cysteine-proteases, aspartic acid-proteases and aminopeptidases that are typically present in cellular lysate samples. Regular and EDTA-free formulations provide for inhibition of metalloproteases and compatibility with 2D electrophoresis, respectively.

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Halt™ Protease Inhibitor Single-Use Cocktail (100X)

NP40 Cell Lysis Buffer (Invitrogen™)

NP40 Cell Lysis Buffer is suitable for the preparation of cell extracts to be analyzed by Antibody Bead Immunoassay (Luminex), ELISA, and Western blotting.

Total Exosome Isolation Reagent (from serum) (Invitrogen™)

Total Exosome Isolation Reagent (from serum) enables fast and efficient enrichment of intact exosomes from blood serum samples.
• Maximise recovery of intact exosomes for any type of downstream applications
• Easily isolate exosomes with our simple and reliable protocol
• Avoid time-consuming ultra-centrifugation
• Maximize flexibility—can be scaled up or down depending on the sample size

Isolation of exosomes can be a tedious, non-specific, and difficult process. Total Exosome Isolation Reagent (from serum) enables simple and reliable concentration of intact exosomes from blood serum samples with a protocol that is scalable depending on your sample size.

By tying up water molecules, the reagent forces less-soluble components such as vesicles out of solution, allowing them to be collected by a short, low-speed centrifugation. The reagent is added to the serum sample, and the solution is incubated at 2°C to 8°C for 30 min. The precipitated exosomes are recovered by standard centrifugation at 10,000 x g for 10 min. The pellet is then resuspended in PBS or similar buffer, and the exosomes are ready for downstream analysis or further purification by affinity methods. Total RNA and protein can then be purified using theTotal Exosome RNA and Protein Isolation Kit, or the intact exosomes can be used for biological studies of their pathways, functions, and trafficking. For immunoprecipitation of exosomal proteins, use Exosome Immunoprecipitation (Protein A) or Exosome Immunoprecipitation (Protein G).

To isolate intact exosomes from cell culture media, we recommend Total Exosome Isolation Reagent (from cell culture media).

N-PER™ Neuronal Protein Extraction Reagent (Thermo Scientific™)

Thermo Scientific N-PER Neuronal Protein Extraction Reagent is a proprietary cell lysis reagent optimized for efficient extraction of proteins from all cellular compartments of neuronal tissue and primary cultured neurons.

Features of N-PER Neuronal Protein Extraction Reagent:

Optimized—efficient total protein extraction, including membrane proteins, from brain tissue or primary cultured neurons
Gentle—preserves protein function without compromising yield
Versatile—can be supplemented with protease inhibitors, reducing or chelating agents or required cofactors
Compatible—extracts are suitable for use with total protein, enzymatic and immunological assays and protein purification methods

Neuron cell lysates, such as brain tissue extracts, that are prepared using the N-PER Reagent are suitable for enzymatic activity assays (e.g., phosphatase, kinase, ATPase assays), immunoassays (e.g., Western blots, ELISAs, RIAs) and protein purification. The N-PER Lysis Reagent enables protein extraction to be completed in less than 30 minutes and requires mechanical disruption of tissue (e.g., Dounce Homogenization, Polytron). Typical neuronal protein yields are 70-90 µg of protein per mg of brain tissue or 300 µg of total protein from 106 primary neuronal cells.

• Isolate functional proteins from neuronal tissues or primary neuronal cells
• Study enzymatic activity assays specific to neuronal tissue
• Generate lysates from neuronal tissues for biomarker analysis

Typical neuron structures include the cell body (soma), dendrites and an axon. The unique morphology and rich sphingolipid and cholesterol composition of neuron cell membranes creates challenges in preparing neuronal protein extracts. N-PER Neuronal Protein Extraction Reagent is specifically formulated to overcome the challenges of extracting functional native proteins from brain or other neuronal tissue and primary cultured neurons while increasing protein yield compared to other extraction methods.

The mild formulation of the N-PER Cell Lysis Reagent is ideal for downstream applications requiring active neuronal proteins. In addition, the N-PER Reagent is compatible with many applications including enzyme assays (e.g., phosphatase, kinase), immunoassays, various chromatography procedures and electrophoresis. Thermo Scientific Halt Protease Inhibitor Cocktail or Phosphatase Inhibitor Cocktail can be added just before use to prevent proteolysis or to offer additional protection from the high phosphatase activity normally present in brain tissue.

For each extraction, a ratio of 1g of tissue to 10 mL of N-PER Reagent or 0.5-1 mL N-PER Reagent per 10 cm petri dish of primary cultured cells is recommended.

More Product Data
Optimized protein extraction reagent for neuronal tissue and primary cells

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Pierce™ Primary Neuron Isolation Kit

Tissue Extraction Reagent I (Invitrogen™)

This Tissue Extraction Reagent I is a lysis buffer for total protein extraction from tissue samples.