普健生物（武汉）科技有限公司（AtaGenix）
Recombinant Human CD22 protein ,C- Fc Tag
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- 产品信息（Product Details）
- 前沿进展（Frontier progress）
- 如何订购
- 说明书
概述（Summary）icon
英文全称
Recombinant Human CD22 protein ,C- Fc Tag
纯度（Purity）
>90% as determined by SDS-PAGE
内毒素（Endotoxin level）
Please contact with the lab for this information.
蛋白构建（Construction）
A DNA sequence encoding the human CD22(Met1-Arg687) was fused with the C-terminal Fc Tag
Accession #
P20273
表达宿主（Host）
Mammalian cells
种属（Species）
Homo sapiens (Human)
预测分子量（Predicted Molecular Mass）
103.75kDa
制剂（Formulation）
Supplied as solution form in PBS or lyophilized from PBS .
运输方式（Shipping）
In general, proteins are provided as lyophilized powder/frozen liquid. They are shipped out with dry ice/blue ice unless customers require otherwise.
稳定性&储存（Stability &Storage）
Use a manual defrost freezer and avoid repeated freeze thaw cycles.
Store at 2 to 8 °C for one week .
Store at -20 to -80 °C for twelve months from the date of receipt.
Store at 2 to 8 °C for one week .
Store at -20 to -80 °C for twelve months from the date of receipt.
复溶（Reconstitution）
Reconstitute in sterile water for a stock solution.A copy of datasheet will be provided with the products, please refer to it for details.
电泳图（SDS-PAGE image）icon
背景（Background）icon
背景介绍
B-cell receptor CD22 is also known as Sialic acid-binding Ig-like lectin 2 (Siglec-2), B-lymphocyte cell adhesion molecule (BL-CAM), T-cell surface antigen Leu-14, which belongs to the immunoglobulin superfamily and SIGLEC (sialic acid binding Ig-like lectin) family. CD22 mediates B-cell B-cell interactions, and may be involved in the localization of B-cells in lymphoid tissues. Siglec-2 / CD22 binds sialylated glycoproteins, one of which is CD45. Siglec2 / CD22 plays a role in positive regulation through interaction with Src family tyrosine kinases and may also act as an inhibitory receptor by recruiting cytoplasmic phosphatases via their SH2 domains that block signal transduction through dephosphorylation of signaling molecules.
分子别名（Alternative Names）
CD22,SIGLEC2,BL-CAM,SIGLEC-2,Siglec2,SIGLEC2FLJ22814
参考文献（References）
Li, Anwar, Fan, Juang, Lin, Chang, Kawade, Chen, Chen, Tan, Lin (2020) Fluorescence "Turn-on" Lectin Sensors Fabricated by Ligand-Assisted Labeling Probes for Detecting Protein-Glycoprotein Interactions Biomacromolecules 21(2) 815-824
Noteicon
For research use only .
Elucidation of protein-protein interactions (PPIs) is often very challenging and yields complex and unclear results. Lectin-glycoprotein interactions are especially difficult to study due to the noncovalent nature of the interactions and inherently low binding affinities of proteins to glycan ligands on glycoproteins. Here, we report a "ligand-directed labeling probe (LLP)"-based approach to fabricate protein probes for elucidating protein-glycoprotein interactions. LLP was designed with dual photoactivatable groups for the introduction of an alkyne handle proximal to the carbohydrate-binding pocket of lectins, Ricinus communis agglutinin 120 (RCA120) and recombinant human Siglec-2-Fc. In proof-of-principle studies, alkynylated lectins were conjugated with a photoreactive diazirine cross-linker and an environment-sensitive fluorophore, respectively, by the bioorthogonal click reaction. The modified RCA120 or Siglec-2-Fc was used for detecting the interaction with the target glycoprotein in the solution or endogenously expressed glycoproteins on live HeLa cells. We anticipate that the fabrication of these protein probes will accelerate the discovery of novel PPIs.
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