Mouse CD275 Protein, His Tag_天津卡梅德科技发展有限公司

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Mouse CD275 Protein, His Tag

Mouse CD275 Protein, His Tag

产品编号

KMP2321

别名

诱导性T细胞促刺激配体, B7 homolog 2, B7-H2

规格

50ug
100ug
200ug

DATASHEET MSDS

立即询价加入询价列表大包装定制

产品介绍

Catalog Number	KMP2321
Alias	诱导性T细胞促刺激配体, B7 homolog 2, B7-H2
Size	50ug, 100ug, 200ug
Product Description	The Mouse CD275 Protein(KMP2321) is produced in HEK293 Cells and the target gene encoding Glu47-Lys279 is expressed with a 6His tag at the C-terminus.
Molecular Name	CD275
Product Introduction	CD275（ICOSL）：免疫球蛋白超家族（IgSF）成员，以跨膜形式作为ICOS的配体参与T细胞活化。
Molecular Weight	27.1 kDa
Expression System	HEK293 Cells
Species	Mouse
Purity	>95%
SDS-PAGE
Purification	Affinity Purification
Uniprot ID	Q9JHJ8
Storage Condition	Aliquot and store at -20℃ to -80℃. Avoid repeated freezing and thawing cycles.
Formulation	PBS, pH7.4
Shipping Condition	In general, the proteins are provided as lyophilized powder which are shipped at ambient temperature. They are shipped out in dry ice if supplied in liquid form.
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.
Endotoxin	<1.0 EU/ug determined by the LAL method
Product Declaration	该产品仅供科研使用，不可直接用于人体或注射。

FAQ

如何避免重组蛋白降解？

可在纯化过程中加入蛋白酶抑制剂、低温操作，优化储存条件（如分装冻存于-80°C），并避免反复冻融。某些情况下，可选用蛋白酶缺陷型宿主菌减少降解风险。
如何检测重组蛋白的表达和纯度？

常用SDS-PAGE、Western Blot检测表达，BCA/Bradford法测浓度，HPLC或质谱分析纯度，生物活性实验（如ELISA、酶活检测）验证功能。

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