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Protein Sample Prep

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Sample preparation is critical to prepare and purify proteins for functional or structural studies. Our complete range of reagents and enzymes for cell lysis and protein extraction provide you with an array of options so that you can put together the perfect extraction protocol for your particular cells and protein. We offer a wide vareity of products for protein purification, including agarose resins, magnetic beads, and FLAG® tag technology. Our membrane-based, protein sample concentration technologies, including tangential flow filtration (TFF)-based separation, enable fast, easy concentration, desalting and buffer exchange.  

Amicon® Devices

Amicon® Devices

Centrifugal and pressurized ultrafiltration devices for protein concentration, desalting, buffer exchange, separation, and diafiltration of biological and environmental samples in preparation for downstream applications.

FLAG purification

Expression vectors, affinity resins, and antibodies for expressing, purifying, and detecting FLAG® tagged fusion proteins.

Protein purification of recombinant proteins using affinity chromatography

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Cell lysis for protein extraction.
Whole Cell Lysis Reagents & Enhancers

Protein extraction kits, cell lysis buffers, and reagents for solubilizing proteins from bacteria, yeast, and insect cultures, as well as plant and mammalian cell cultures and tissue samples.

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Proteins in solution
Protease & Phosphatase Inhibitor Cocktails

Protease and phosphatase inhibitors and cocktails to prevent proteolysis and protein dephosphorylation, and to preserve the active state of proteins during cell lysis, protein extraction, and sample preparation.

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Cytiva HiTrap™ Protein G HP purification columns
Antibody Protein Purification

Antibody purification resins and prepacked columns for lab scale, process scale, and industry scale workflow

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Continuous diafiltration for buffer exchange, desalting, and dialysis
Laboratory Dialysis & Diafiltration Devices

Dialyzers, centrifugal ultrafiltration devices, and stirred cells for buffer exchange, dialysis, desalting, and diafiltration of 10 µL – 1,200 mL sample volumes.

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Principle for protein concentration by ultrafiltration: larger molecular weight protein is retained while excess liquid and lower molecular weight particles pass into the filtrate.
Laboratory Concentration Devices

Centrifugal and pressurized ultrafiltration devices for high recovery protein concentration and concentration of other biological and environmental samples in preparation for downstream applications.

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Protein purification of recombinant proteins using affinity chromatography
Recombinant/Fusion Tag Protein Purification

Affinity purification resins and buffers for purifying His-tagged, GST-tagged, FLAG® tagged, S-tag™, Strep-Tag II, and T7-tagged proteins under native or denaturing conditions using batch or column purification techniques.

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/US/en/products/protein-biology/protein-sample-prep/biotinylated-protein-purification
Biotinylated Protein Purification

Streptavidin and avidin resins and prepacked columns for small- to large-scale purification of biotinylated proteins and antibodies.

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Cell fractionation and protein enrichment in proteomics research
Subcellular Fractionation, Enrichment, and Depletion Reagents

Fully validated subcellular fractionation and protein enrichment and depletion kits tailored for proteomics research and downstream applications including activity assays, protein microarrays, immunoblotting, ELISA, 2D gel electrophoresis, and mass spectrometry.

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centrifugal filters (67)

kits (61)

filter discs (52)

inhibitors (34)

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Showing 1-20 of 502
Benzonase<SUP>®</SUP> Nuclease
E1014

Benzonase® Nuclease

≥250 units/μL, ≥90% (SDS-PAGE), recombinant, expressed in E. coli, buffered aqueous glycerol solution

cOmplete<SUP>™</SUP>, Mini, EDTA-free Protease Inhibitor Cocktail
11836170001

cOmplete, Mini, EDTA-free Protease Inhibitor Cocktail

Protease Inhibitor Cocktail Tablets provided in a glass vial, Tablets provided in a glass vial

Amicon<SUP>®</SUP> Ultra Centrifugal Filter, 10 kDa MWCO
UFC9010

Amicon® Ultra Centrifugal Filter, 10 kDa MWCO

sample volume 15 mL, regenerated cellulose membrane, MWCO 10 kDa

PhosSTOP<SUP>™</SUP>
PHOSS-RO

PhosSTOP

sufficient for 10 10mL buffer preparations, sufficient for 20 10mL buffer preparations, suitable for tissue processing, suitable for immunoprecipitation (IP)

cOmplete<SUP>™</SUP>, EDTA-free Protease Inhibitor Cocktail
COEDTAF-RO

cOmplete, EDTA-free Protease Inhibitor Cocktail

Tablets provided in glass vials

Amicon<SUP>®</SUP> Ultra Centrifugal Filter, 100 kDa MWCO
UFC9100

Amicon® Ultra Centrifugal Filter, 100 kDa MWCO

sample volume 15 mL, regenerated cellulose membrane, MWCO 100 kDa

Amicon<SUP>®</SUP> Ultra Centrifugal Filter, 30 kDa MWCO
UFC9030

Amicon® Ultra Centrifugal Filter, 30 kDa MWCO

sample volume 15 mL, regenerated cellulose membrane, MWCO 30 kDa

Amicon<SUP>®</SUP> Ultra Centrifugal Filter, 10 kDa MWCO
UFC5010

Amicon® Ultra Centrifugal Filter, 10 kDa MWCO

sample volume 0.5 mL, regenerated cellulose membrane, MWCO 10 kDa

Protease Inhibitor Cocktail
P8340

Protease Inhibitor Cocktail

DMSO solution, for the inhibition of serine, cysteine, acid proteases and aminopeptidases, for use with mammalian cell and tissue extracts, DMSO solution

Amicon<SUP>®</SUP> Ultra Centrifugal Filter, 10 kDa MWCO
UFC8010

Amicon® Ultra Centrifugal Filter, 10 kDa MWCO

sample volume 4 mL, regenerated cellulose membrane, MWCO 10 kDa

Amicon<SUP>®</SUP> Ultra Centrifugal Filter, 3 kDa MWCO
UFC5003

Amicon® Ultra Centrifugal Filter, 3 kDa MWCO

sample volume 0.5 mL, regenerated cellulose membrane, MWCO 3 kDa

Amicon<SUP>®</SUP> Ultra Centrifugal Filter, 3 kDa MWCO
UFC9003

Amicon® Ultra Centrifugal Filter, 3 kDa MWCO

sample volume 15 mL, regenerated cellulose membrane, MWCO 3 kDa

ANTI-FLAG<SUP>®</SUP> M2 antibody, Mouse monoclonal
F1804

ANTI-FLAG® M2 antibody, Mouse monoclonal

1 mg/mL, clone M2, affinity isolated antibody, buffered aqueous solution (50% glycerol, 10 mM sodium phosphate, and 150 mM NaCl, pH 7.4)

Amicon<SUP>®</SUP> Ultra Centrifugal Filter, 30 kDa MWCO
UFC5030

Amicon® Ultra Centrifugal Filter, 30 kDa MWCO

sample volume 0.5 mL, regenerated cellulose membrane, MWCO 30 kDa

Amicon<SUP>®</SUP> Ultra Centrifugal Filter, 50 kDa MWCO
UFC9050

Amicon® Ultra Centrifugal Filter, 50 kDa MWCO

sample volume 15 mL, regenerated cellulose membrane, MWCO 50 kDa

Amicon<SUP>®</SUP> Ultra Centrifugal Filter, 100 kDa MWCO
UFC5100

Amicon® Ultra Centrifugal Filter, 100 kDa MWCO

sample volume 0.5 mL, regenerated cellulose membrane, MWCO 100 kDa

Amicon<SUP>®</SUP> Ultra Centrifugal Filter, 30 kDa MWCO
UFC8030

Amicon® Ultra Centrifugal Filter, 30 kDa MWCO

sample volume 4 mL, regenerated cellulose membrane, MWCO 30 kDa

Amicon<SUP>®</SUP> Ultra Centrifugal Filter, 100 kDa MWCO
UFC8100

Amicon® Ultra Centrifugal Filter, 100 kDa MWCO

sample volume 4 mL, regenerated cellulose membrane, MWCO 100 kDa

cOmplete<SUP>™</SUP>, Mini, EDTA-free Protease Inhibitor Cocktail
04693159001

cOmplete, Mini, EDTA-free Protease Inhibitor Cocktail

Tablets provided in EASYpacks

RIPA Buffer
R0278

RIPA Buffer


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