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Description
Biotinylated Siglec-2 His&Avi Tag Protein, HumanProduct Specification Species Human Synonyms Siglec 2, CD22, BL CAM,Siglec2 Accession P20273 1 Amino Acid Sequence Asp20 Arg687, with C terminal His&Avi Expression System HEK293 Molecular Weight 95 120kDa (Reducing) Purity 95% by SDS PAGE & SEC HPLC Endotoxin <1EU g Conjugation Biotin Tag Avi Tag, His Tag Physical Appearance Lyophilized Powder Storage Buffer PBS, PH7. 4, 5% trehalose Reconstitution Reconstitute at 0. 1 1 mg ml according to the size in
Product Specification
| Species | Human |
| Synonyms | Siglec-2, CD22, BL-CAM,Siglec2 |
| Accession | P20273-1 |
| Amino Acid Sequence | Asp20-Arg687, with C-terminal His&Avi |
| Expression System | HEK293 |
| Molecular Weight | 95-120kDa (Reducing) |
| Purity | ＞95% by SDS-PAGE & SEC-HPLC |
| Endotoxin | <1EU/μg |
| Conjugation | Biotin |
| Tag | Avi Tag, His Tag |
| Physical Appearance | Lyophilized Powder |
| Storage Buffer | PBS, PH7.4, 5% trehalose |
| Reconstitution | Reconstitute at 0.1-1 mg/ml according to the size in ultrapure water after rapid centrifugation. |
| Stability & Storage |
· 12 months from date of receipt, lyophilized powder stored at -20 to -80℃. · 3 months, -20 to -80℃ under sterile conditions after reconstitution. · 1 week, 2 to 8℃ under sterile conditions after reconstitution. · Please avoid repeated freeze-thaw cycles. |
| Reference | 1、Fujimoto M. et al. (2007) B cell signaling and autoimmune diseases: CD19/CD22 loop as a B cell signaling device to regulate the balance of autoimmunity. J Dermatol Sci. 46(1): 1-9. |
Background
Human Siglec-2, also known as B cell antigen CD22 or B lymphocyte cell adhesion molecule (BL-CAM), is a B cell restrictive glycoprotein that is expressed in the cytoplasm of progenitor B and pre-B cells and on the surface of mature B cells. CD22 mediates the interaction between B cells and may participate in the localization of B cells in lymphoid tissue. Siglec-2/CD22 binds to sialylated glycoproteins and plays a role in positive regulation by interacting with the Src family tyrosine kinases. It may also act as an inhibitory receptor by recruiting cytoplasmic phosphatase through its SH2 domain, blocking signal transduction through dephosphorylation of signaling molecules.
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