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Immunoprecipitation Kit (Protein A Agarose Gel)

Catalog No.
K4621
Universal IP Toolkit (Protein A Agarose Gel) mainly used for IP/Co-IP and Protein-molecule interactions, etc.
Grouped product items
SizePriceStock Qty
20T
$208.00
In stock
For scientific research use only and should not be used for diagnostic or medical purposes.

Tel: +1-832-696-8203

Email: [email protected]

Worldwide Distributors

Description

Immunoprecipitation (IP) or co-immunoprecipitation (Co-IP) is the study of proteins or protein-protein interactions. PPIs) are used to separate the target protein from complex samples by using specific antibodies and antibody-binding media (such as Protein A/G agarose gels, etc.), or directly using media conjugated to specific antibodies (such as agarose gels or magnetic beads), which can be used for Western blot detection or mass spectrometry analysis.

Protein A is a cell wall surface protein found in Staphylococcus aureus with a molecular weight of 42 kDa, which specifically binds to the Fc region of mammalian immunoglobulin (Ig) and also to the Fab region of the human VH3 family. Protein A specifically binds to antibodies such as human IgG1, IgG2, IgG4, mouse IgG2a, IgG2b, and rabbit IgG, and each Protein A molecule can bind up to 5 IgG molecules. The binding capacity of common immunoglobulin subclasses and the total binding capacity of different species are shown in the table below (Table 1).

This kit contains Protein A agarose gel and other necessary reagents for immunoprecipitation, and with the specific antibodies provided by the user, it makes immunoprecipitation (IP, also known as pull-down) or co-immunoprecipitation (Co-IP) experiments simpler, more convenient and efficient, and the immunoprecipitation products can be used for the detection of the target protein or its protein complexes and other experiments. (See Table 2 for specific product parameters).

Species

Subclass

Protein A binding

Protein G binding

Human

lgA

++

-

lgD

++

-

IgE

++

-

lgG1

++++

++++

lgG2

++++

++++

IgG3

-

++++

lgG4

++++

++++

lgM

++

-

Mouse

IgG1

+

++++

lgG2a

++++

++++

lgG2b

+++

+++

lgG3

++

+++

lgM

+/-

-

Rat

lgG1

-

+

lgG2a

-

++++

lgG2b

-

++

lgG3

+

++

Avian egg yolk

IgY

-

-

Cow

 

++

++++

Dog

 

++

+

Goat

 

-

++

Guinea Pig

lgG1

++++

++

lgG2

++++

++

Hamster

 

+

++

Horse

 

++

++++

Koala

 

-

+

Llama

 

-

+

Monkey (rhesus)

 

++++

++++

Pig

 

+++

+++

Rabbit

 

++++

+++

Sheep

 

+/-

++

Table 1 Affinity data for Protein A for different sources and subtypes of IgG. ++++ = Strong Binding; ++~+++ = Medium Binding; + = Weak Binding; +/- = Weak or No Binding; - = No Binding.

Characteristics

Description

Product content

Store in 20% ethanol with a glue-to-suspension ratio of approximately 75%

Bead structure

4% cross-linked agarose

Average beads size

90 μm

Coupled protein

Recombinant Protein A (E. coli)

M. W. of protein

14 kDa Protein A

Ligand concentration

6 mg rProtein A per mL settled gel

Binding capacity

~35 mg human IgG per ml settled gel

Elution method

Elution with acid, competing peptide or SDS-PAGE loading buffer

Operating temperature

2-40℃

pH stability*

3-10

Solvent resistant

6 M guanidine hydrochloride, 8 M urea, 2% benzyl alcohol**, 75% ethanol**, 1 mM NaOH (pH 11)., 0.1 M sodium citrate/HCl (pH 3).

Application

Suitable for IP, Co-IP, Protein purification

Storage

4°C

*After 7 days of storage at 40°C, pH3-10, the physicochemical properties, and functions of agarose showed no significant changes.

** v/v, volume ratio

Table 2 The main related indicators of Protein A Agarose Gel.

Quality Control

Quality Control & DataSheet

View current batch:

Related Biological Data

Immunoprecipitation Kit (Protein A Agarose Gel)
 

Components and Storage

Components K4621-20 T
Cell Lysis Buffer 50 mL
Protease Inhibitor Cocktail (EDTA-Free,100X in DMSO) 0.5 mL
10X TBS 10 mL
Neutralization Buffer 200 μL
Acid Elution Buffer 2 mL
Protein A Agarose Gel 400 μL
5X Protein Loading Buffer (Reducing) 600 μL

Store Protease Inhibitor Cocktail (EDTA-Free,100X in DMSO) and 5X Protein Loading Buffer (Reducing) at -20°C and the rest of components at 4°C for 12 months.