Protease Inhibitors/Phosphatase Inhibitors

- The Temptation to Clear Enzymes.

Why Clear Proteases and Phosphatases from Proteins?

In a state of equilibrium, endogenous proteins are produced and degraded, maintaining their cellular levels stable. When proteins are extracted from cells and tissues in vitro, numerous endogenous enzymes capable of degrading the extracted proteins, such as phosphatases and proteases, are also released. With the production of proteins significantly inhibited and degradation continuing, these enzymes can rapidly degrade the proteins in the extract. To prevent the destruction of the target protein by proteases during protein purification, protease inhibitors are added to inhibit their activity.

Additionally, protein phosphorylation and dephosphorylation in cells are the regulatory switches for many important biological activities such as signal transduction, cell proliferation, cell differentiation, and cell apoptosis. Protecting the phosphorylation state of proteins is crucial in the study of protein phosphorylation pathways and signal transduction routes. Therefore, controlling the action of phosphatases is of significant physiological importance in protein research.

Yeasen Biotech continuously innovates and, through the directed design of protein molecular structures and large-scale enzyme protein mutagenesis screening, provides customers with high-performance protease and phosphatase inhibitor products.

Product Introduction

Proteolytic inhibitors (protease inhibitors) broadly refer to substances that bind to certain groups on the active center of protease molecules, reducing their activity or even eliminating it without causing denaturation of the enzyme protein. Substances such as leupeptin, antipain, chymostatin, elastatinaldehyde, aprotinin, and phosphoramidon, which are isolated from actinomycete fermentation broths, can inhibit trypsin, papain, chymotrypsin, elastase, pepsin, and metalloproteinases, respectively, and are all considered protease inhibitors.

Product Composition

Inhibitor

Component

Inhibition Type

Protease Inhibitor

AEBSF(Cat#20111ES)

Irreversible inhibitor of serine proteases

Aprotinin(Cat#20105ES)

Competitive reversible inhibitor of serine proteases

Bestatin(Cat#20132ES)

Reversible inhibitor of aminopeptidases

E-64(Cat#20129ES)

Irreversible inhibitor of cysteine proteases

Leupeptin(Cat#20112ES)

Reversible inhibitor of serine and cysteine proteases

Pepstatin A(Cat#20113ES)

Reversible inhibitor of aspartic proteases

EDTA(Cat#60126ES)

Reversible inhibitor of metalloproteinases

1,10-Phenanthroline

Reversible inhibitor of metalloproteinases

Phosphoramidon

Reversible inhibitor of metalloproteinases

Phosphatase Inhibitor

Cantharidin

Reversible inhibitor of protein phosphatase 2A

(-)-p-bromotetramisole oxalate

Irreversible inhibitor of alkaline phosphatase

Microcystin-LR

Reversible inhibitor of protein phosphatase 1 and protein phosphatase 2A

sodium orthovanadate(Cat#20133ES)

Reversible inhibitor of alkaline phosphatase and tyrosine phosphatase

sodium molybdate

Irreversible inhibitor of acid phosphatase

sodium tartrate

Reversible inhibitor of acid phosphatase

imidazole

Reversible inhibitor of alkaline phosphatase

sodium fluoride

Reversible inhibitor of acid phosphatase

Product Information

Different types of protein extracts contain different types of proteases. For example, mammalian cell extracts typically contain a high abundance of serine proteases, bacterial cell extracts usually contain more serine proteases and metalloproteinases, and plant extracts often contain a large number of serine and cysteine proteases, as well as some with aspartic proteases. Additionally, AEBSF can cause mass spectrometry peak drift, so protease inhibitors containing AEBSF are not suitable for mass spectrometry (Mass Spectrometry, MS) detection and analysis. Therefore, Yeasen Biotech offers different types of proteases, phosphatase, and inhibitor mixtures for selection, tailored to the protein extraction and subsequent experimental purposes of different types of samples. Specific purchase information can be found in the order details.

Product Ordering

Product Number

Product Name

Components

Specification

20123ES

InStab™ Protease Cocktail,EDTA-free,mini,tablet-form

Contains AEBSF, Aprotinin, Bestatin, E-64, Leupeptin, Pepstatin A and other components

1 bottle (10 tablets) /  1 bottle (50 tablets)

20124ES

InStab™ Protease Inhibitor Cocktail,EDTA-free,100×DMSO Stock Solution

Contains AEBSF, Aprotinin, Bestatin, E-64, Leupeptin, Pepstatin A and other components

1 mL/10×1 mL/100×1 mL

20134ES

InStab™ Protease Inhibitor Cocktail for fungal and yeast extracts, EDTA-free,100×DMSO Stock Solution

Contains AEBSF, E-64, Pepstatin A, 1,10-phenanthroline

1 mL

20135ES

InStab™ Protease Inhibitor Cocktail for purification of His-tagged proteins,EDTA-free,100×DMSO Stock Solution

Contains AEBSF, Bestatin, E-64, Pepstatin A, Phosphoramidon Disodium Salt

1 mL

20136ES

InStab™ Protease Inhibitor Cocktail for plant cell and tissue extracts, EDTA-free,100×DMSO Stock Solution

Contains AEBSF, Bestatin, E-64, Leupeptin, Pepstatin A, 1,10-Phenanthroline

1 mL

20137ES

InStab™ Protease Inhibitor Cocktail for bacterial cell extracts,100×Stock Solution

Contains AEBSF, Bestatin, E-64, Pepstatin A and individually packaged EDTA

2 mL

20138ES

InStab™ Protease Inhibitor Cocktail for MS-SAFE,50×Stock Solution

Contains Aprotinin, Bestatin, E-64, Leupeptin and individually packaged EDTA

2 mL

20109ES

InStab™ Phosphatase Inhibitor Cocktail(100×,Stock Solution)

A tube contains Cantharidin, Bromotetramisole, Microcystin-LR. B tube contains Sodium orthovanadate, Sodium molybdate, Sodium tartrate, Imidazole, Sodium Fluoride

2 mL/10×2 mL/100×2 mL

20140ES

Deacetylase Inhibitor Cocktail (100× in 70% DMSO)

Contains Trichostatin A, EX-527, Nicotinamide, Sodium Butyrate

1 mL

20104ES

PMSF

 

1 g/5×1 g

Inquiry