膜杰作
Star Staining
分子别名（Synonym）
Integrin alpha E beta 7,ITGAE&ITGB7
表达区间及表达系统（Source）
Cynomolgus ITGAE&ITGB7 Heterodimer Protein, His Tag&Tag Free (IT7-C52W3) is expressed from human 293 cells (HEK293). It contains AA Phe 38 - Ser 1142 & Glu 20 - His 723 (Accession # XP_045231543.1 & XP_005571028.2).
Predicted N-terminus: Phe 38 & Glu 20
Request for sequence
蛋白结构（Molecular Characterization）
Cynomolgus ITGAE&ITGB7 Heterodimer Protein, His Tag&Tag Free, produced by co-expression of ITGAE and ITGB7, has a calculated MW of 128.3 kDa (ITGAE) and 81.6 kDa (ITGB7). The protein migrates as 95-110 kDa and 140-160 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under non-reducing (NR) condition (SDS-PAGE) due to glycosylation.
内毒素（Endotoxin）
Less than 1.0 EU per μg by the LAL method.
纯度（Purity）
>90% as determined by SDS-PAGE.
制剂（Formulation）
Lyophilized from 0.22 μm filtered solution in 50 mM Tris, 150 mM NaCl, pH7.5 with trehalose as protectant.
Contact us for customized product form or formulation.
重构方法（Reconstitution）
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
存储（Storage）
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
- -20°C to -70°C for 12 months in lyophilized state;
- -70°C for 3 months under sterile conditions after reconstitution.
电泳（SDS-PAGE）
Cynomolgus ITGAE&ITGB7 Heterodimer Protein, His Tag&Tag Free on SDS-PAGE under non-reducing (NR) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 90% (With Star Ribbon Pre-stained Protein Marker).
活性（Bioactivity）-ELISA
Immobilized Cynomolgus ITGAE&ITGB7 Heterodimer Protein, His Tag&Tag Free (Cat. No. IT7-C52W3) at 5 μg/mL (100 μL/well) can bind Human E-Cadherin, Fc Tag, premium grade (Cat. No. ECD-H5250) with a linear range of 0.078-1.25 μg/mL (QC tested).
Protocol
背景（Background）
Integrin alpha E beta 7 consist of two major subunits: Integrin alpha E (ITGAE) also known as CD103 (cluster of differentiation 103) and Integrin beta-7 is an integrin protein that in humans is encoded by the ITGB7 gene. Integrin alpha E beta 7 (CD103) is expressed mainly by cells of the T lymphocyte lineage within mucosal tissues. This is a strikingly narrow pattern of expression compared with that of other integrins. Lymphocytes expressing alpha E beta 7 are abundant in the gut and comprise a major part of the total T cell complement of the body.
The effectiveness of lung transplantation is marred by the relatively high incidence of rejection. The lung normally contains a large population of lymphocytes in contact with the airway epithelium, a proportion of which expresses the mucosal integrin, alpha(E)(CD103)beta(7). This integrin is not a homing receptor, but is thought to retain lymphocytes at the epithelial surface.
