ABCB4/MDR3 Rabbit Polyclonal Antibody
Datasheet 
Key features and details
- Target:
- Host:
- Reactivity:
- Clonality:
- Application:
- Storage:
-
Brand:
CAT.NO. : ARA6660
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Size:
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Product Details
Background
The membrane-associated protein encoded ABCB4 is a member of the superfamily of ATP-binding cassette (ABC) transporters. ABC proteins transport various molecules across extra- and intra-cellular membranes. ABC genes are divided into seven distinct subfamilies (ABC1, MDR/TAP, MRP, ALD, OABP, GCN20, White). This protein is a member of the MDR/TAP subfamily. Members of the MDR/TAP subfamily are involved in multidrug resistance as well as antigen presentation. This gene encodes a full transporter and member of the p-glycoprotein family of membrane proteins with phosphatidylcholine as its substrate. The function of this protein has not yet been determined; however, it may involve transport of phospholipids from liver hepatocytes into bile. Alternative splicing of this gene results in several products of undetermined function.
Application
To ensure optimal assay performance, AREX recommends conducting reagent titration tailored to each testing system for optimal detection results.
*Results are sample-specific. Please refer to your local assay conditions and test parameters for reference.
Application | Dilution Ratio |
WB | 1:500 - 1:2000 |
IF/ICC | 1:50 - 1:200 |
Overview
Immunogen | Recombinant fusion protein of human MDR3. The exact sequence is proprietary. |
Purification | The antibody was purified by immunogen affinity chromatography. |
Form/Buffer | Liquid in 0.42% Potassium phosphate, 0.87% Sodium chloride, pH 7.3, 30% glycerol, and 0.01% sodium azide. |
Gene Name | ABCB4 |
Alternative Names | MDR3; PGY3; Multidrug resistance protein 3; ATP - binding cassette sub - family B member 4; P - glycoprotein 3 |
Gene ID (Human) | 5244 |
Gene ID (Mouse) | 18670 |
Protein ID (Human) | P21439 |
Protein ID (Mouse) | P21440 |
*Clone Number, Reactivity, Source/Host and Clonality can be found in the product name and Key Features section above.
Data
Western blot analysis of ABCB4/MDR3 expression in mouse brain (A) whole cell lysates. (Predicted band size: 135; 140; 141 kD; Observed band size: 144 kD)
Storage
Shipped at 4℃. Store at -20℃ for one year. Avoid repeated freeze/thaw cycles.
Note
For Research Use Only. Not for diagnostic, therapeutics, prophylactic or in vivo use.
FAQs
What are the main types of research antibodies and how do they differ?
Research antibodies are mainly divided into monoclonal antibodies and polyclonal antibodies. Monoclonal antibodies typically offer higher specificity and better batch-to-batch consistency, while polyclonal antibodies often provide stronger affinity but may show more variation between batches. The choice depends on your specific experimental needs.
How can I tell if a research antibody is suitable for my experiment?
It is recommended to carefully review the product datasheet for validated applications, species reactivity, recommended dilutions, and published references. For new antibodies, performing a small-scale validation with positive control samples is usually helpful.
Can improper storage of research antibodies affect experimental results?
Yes. Antibodies are sensitive to temperature, repeated freeze-thaw cycles, and contamination. Improper storage may lead to reduced activity, increased background, or weaker signals. It is best to follow the storage instructions provided in the product datasheet.
Why doesn’t the recommended dilution in the datasheet work well in my experiment?
The recommended dilution is based on the supplier’s test conditions. Factors such as sample type, fixation method, and detection system in your lab can influence the optimal working concentration. Performing a dilution series optimization in your own system is often necessary.
What precautions should I take when using a newly purchased research antibody for the first time?
It is advisable to briefly centrifuge the antibody (especially concentrated or lyophilized ones), then perform a small-scale pilot experiment using the recommended conditions. Recording the batch number and usage date is also helpful for future tracking.
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