CD275 Rabbit Polyclonal Antibody

Key features and details

Rabbit polyclonal antibody to CD275
  • Target: CD275
  • Source/Host: Rabbit
  • Reactivity: Human,Mouse,Rat
  • Clonality: Polyclonal
  • Applications: WB, IHC
  • Conjugation: Unconjugated
  • Storage: at-20°C
  • Brand:
CAT.NO. : APA14618
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Product Details
Background
Ligand for the T-cell-specific cell surface receptor ICOS. Acts as a costimulatory signal for T-cell proliferation and cytokine secretion . Also induces B-cell proliferation and differentiation into plasma cells. Could play an important role in mediating local tissue responses to inflammatory conditions, as well as in modulating the secondary immune response by co-stimulating memory T-cell function . In endothelial cells, required for proper neutrophil transmigration in response to chemoattractants, such as CXCL8/IL8 or N-formyl-methionyl peptides (fMLP) .
Application
To ensure optimal assay performance, AREX recommends conducting reagent titration tailored to each testing system for optimal detection results.

WB

1:500 - 1:2000

IHC

1:50 - 1:200

*Results are sample-specific. Please refer to your local assay conditions and test parameters for reference.
Overview

Description

Rabbit polyclonal antibody to CD275

Specificity

Recognizes endogenous levels of CD275 protein.

Antibody Type

Primary antibody

Imnunogen

Recombinant fusion protein of human CD275

Purification

The antibody was purified by immunogen affinity chromatography.

Molecular Weight

Predicted: 20; Observed: 60 kD

Form/Buffer

Liquid in 0.42% Potassium phosphate, 0.87% Sodium chloride, pH 7.3, 30% glycerol, and 0.01% sodium azide.

Alternative Names

B7H2; B7RP1; ICOSL; KIAA0653; ICOS ligand; B7 homolog 2; B7-H2; B7-like protein Gl50; B7-related protein 1; B7RP-1; CD275

Gene Symbol

ICOSLG

Entrez Gene

23308(Human); 50723(Mouse)

SwissProt

O75144(Human); Q9JHJ8(Mouse)

*AREX continuously optimizes our products. Webpage content may not reflect the latest updates. For inquiries, please contact info@arexbio.com or your local distributor.
*Clone Number, Reactivity, Source/Host and Clonality can be found in the product name and Key Features section above.
Data

Western blot analysis of CD275 expression in HL60 (A), mouse brain (B), rat spleen (C) whole cell lysates. (Predicted band size: 20; 33; 34 kD; Observed band size: 60 kD)

Immunohistochemical analysis of CD275 staining in human skin cancer formalin fixed paraffin embedded tissue section. The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0). The section was then incubated with the antibody at room temperature and detected using an HRP conjugated compact polymer system. DAB was used as the chromogen. The section was then counterstained with haematoxylin and mounted with DPX.

Storage
Store at 4°C short term. For long term storage, store at -20°C, avoiding 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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