Human Inducible T-Cell Co Stimulator Ligand (ICOSLG) Protein

Product specifications

Proteins and Peptides

Inducible T-Cell Co Stimulator Ligand (ICOSLG)

E. coli

Activity: Not tested
Sequence Fragment: Asp19-Ser258
Tag: N-terminal His tag

Human

Unconjugated

Calculated MW: 29.1 kDa

Recombinant

> 95%

10 µg

50 µg

100 µg

200 µg

500 µg

Lyophilized

WB, SDS-PAGE

Prior to lyophilization: PBS, pH 7.4, containing 0.01% Sarcosyl, 1 mM DTT, 5% Trehalose and Proclin-300.

Shipped within 5-7 working days.

Store lyophilized form at 2-8°C for up to 1 month. For longer periods, store lyophilized or liquid at -80°C. Avoid repeated freeze–thaw cycles.

No

O75144

ICOS ligand, B7RP1,CD275,ICOSL,LICOS,B7RP-1,ICOS-L,IMD119,B7 homolog 2

Protein ICOSLG

RUO

THIS PRODUCT IS FOR RESEARCH USE ONLY. NOT FOR USE IN DIAGNOSTIC, THERAPEUTIC OR COSMETIC PROCEDURES. NOT FOR HUMAN OR ANIMAL CONSUMPTION.
To keep the original salt concentration, we recommend reconstituting to the original concentration prior to lyophilization (see Concentration) in ddH2O. If a lower concentration is required, dilute in PBS, pH 7.4. If a higher concentration is required, the product can be reconstituted directly in PBS, pH 7.4, though please note that this will change the overall salt concentration. The stock concentration should be between 0.1-1.0 mg/ml. Do not vortex.
Endotoxin Level: < 1.0 EU per 1 µg (determined by the LAL method)
Concentration: Prior to lyophilization: 200 µg/ml

Descripción

Inducible T-cell costimulator ligand (ICOSLG), also known as B7-H2 or CD275, is a critical immunoregulatory protein in the B7 family that provides costimulatory signals to T cells. ICOSLG serves as a ligand for ICOS (Inducible T-cell Costimulator), a receptor expressed on activated T cells. Through its interaction with ICOS, ICOSLG plays an essential role in modulating adaptive immune responses, particularly influencing T-cell differentiation, proliferation, and the formation of memory T cells. This interaction is crucial for both protective immunity and immune tolerance, enabling the immune system to respond robustly to pathogens while preventing autoimmunity. ICOSLG is primarily expressed on antigen-presenting cells (APCs), such as B cells, dendritic cells (DCs), macrophages, and certain epithelial cells in mucosal tissues. Its expression is inducible and can be upregulated during inflammation or immune activation by signals from pro-inflammatory cytokines like interferon-gamma (IFN-γ). The ICOS/ICOSLG axis is especially important for the regulation of germinal center formation in lymphoid tissues, where it facilitates B cell differentiation and antibody production. ICOSLG is also implicated in the maintenance of regulatory T cells (Tregs) and T-helper 17 (Th17) cells, thereby contributing to immune homeostasis and controlling inflammation.

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