Recombinant Mouse B7-H2/ICOS L

Recombinant Mouse B7-H2/ICOS Ligand/CD275 (CS08)

 

产品说明(Description)

Recombinant Mouse ICOS Ligand is produced by our Mammalian expression system and the target gene encoding Glu47-Lys279 is expressed with a 6His tag at the C-terminus. 

Accession #: Q9JHJ8

Known as: B7 homolog 2; B7-H2;B7-like protein Gl50; B7RP-1LICOS; CD275; CD275 antigen; ICOS ligand; ICOSL; ICOS-L;inducible T-cell co-stimulator ligand; B7RP-1; CD275; GL50; ICOSL; ICOSLG; B7H2;B7RP1 

 

制剂（Formulation）

Lyophilized from a 0.2 μm filtered solution of PBS, pH7.4.

 

质量控制（Quality Control） 

Purity:            Greater than 95% as determined by reducing SDS-PAGE.    

Endotoxin:    Less than 0.1 ng/ug (1 EU/ug) as determined by LAL test.

 

复溶（Reconstitution）

Always centrifuge tubes before opening. Do not mix by vortex or pipetting.
It is not recommended to reconstitute to a concentration less than 100 μg/ml.
Dissolve the lyophilized protein in distilled water.
Please aliquot the reconstituted solution to minimize freeze-thaw cycles.    

 

保存（Storage）

Lyophilized protein should be stored at < -20°C, though stable at room temperature for 3 weeks.Reconstituted protein solution can be stored at 4-7°C for 2-7 days.Aliquots of reconstituted samples are stable at < -20°C for 3 months.    

 

背景（Background）

Mouse ICOS ligand(B7-H2) is an approximately transmembrane glycoprotein in the B7 family of immune regulatory molecules. B7-H2 is expressed on antigen presenting cells such as B cells, macrophages, monocytes, and dendritic cells. It binds to ICOS on activated T cells, leading to both positive and negative effects on immune responses including its own down-regulation. The B7-H2 interaction with ICOS is costimulatory for T cell proliferation as well as the development of B cells, plasma cells, follicular helper T cells and germinal centers. B7-H2 contributes to the development of allergic asthma by enhancing Th2 biased immune responses, limiting Th17 responses, and promoting eosinophilic infiltration into the lung. Its activation of ICOS on Treg limits pulmonary inflammation and airway hyperresponsiveness, promotes the development of inhalational tolerance, and impairs antitumor immunity. In the thyroid, B7-H2 is up-regulated on thyrocytes during inflammation and promotes their proliferation and production of thryoid hormones.

 

电泳(SDS-PAGE)

 

FOR RESEARCH USE ONLY