sCD22, Human recombinant protein
Leu-14, B-Lymphocyte cell adhesion molecule, BL-CAM, Siglec-2
- SPECIFICATION
- CITATIONS
- PROTOCOLS
- BACKGROUND
| Primary Accession | P20273 |
|---|---|
| Calculated MW | ~75 kDa |
| Gene ID | 933 |
|---|---|
| Gene Symbol | CD22 |
| Other Names | Leu-14, B-Lymphocyte cell adhesion molecule, BL-CAM, Siglec-2 |
| Gene Source | Human |
| Source | CHO cells |
| Assay&Purity | SDS-PAGE; ≥98% |
| Assay2&Purity2 | HPLC; |
| Recombinant | Yes |
| Sequence | SKWVFEHPET LYAWEGACVW IPCTYRALDG DLESFILFHN PEYNKNTSKF DGTRLYESTK DGKVPSEQKR VQFLGDKNKN CTLSIHPVHL NDSGQLGLRM ESKTEKWMER IHLNVSERPF PPHIQLPPEI QESQEVTLTC LLNFSCYGYP IQLQWLLEGV PMRQAAVTST SLTIKSVFTR SELKFSPQWS HHGKIVTCQL QDADGKFLSN DTVQLNVKHT PKLEIKVTPS DAIVREGDSV TMTCEVSSSN PEYTTVSWLK DGTSLKKQNT FTLNLREVTK DQSGKYCCQV SNDVGPGRSE EVFLQVQYAP EPSTVQILHS PAVEGSQVEF LCMSLANPLP TNYTWYHNGK EMQGRTEEKV HIPKILPWHA GTYSCVAENI LGTGQRGPGA ELDVQYPPKK VTTVIQNPMP IREGDTVTLS CNYNSSNPSV TRYEWKPHGA WEEPSLGVLK IQNVGWDNTT IACARCNSWC SWASPVALNV QYAPRDVRVR KIKPLSEIHS GNSVSLQCDF SSSHPKEVQF FWEKNGRLLG KESQLNFDSI SPEDAGSYSC WVNNSIGQTA SKAWTLEVLY APRRLRVSMS PGDQVMEGKS ATLTCESDAN PPVSHYTWFD WNNQSLPHHS QKLRLEPVKV QHSGAYWCQG TNSVGKGRSP LSTLTVYYSP ETIGRR |
| Target/Specificity | sCD22 |
| Application Notes | Centrifuge the vial prior to opening. Reconstitute in water to a concentration of 0.1-1.0 mg/ml. Do not vortex. This solution can be stored at 2-8°C for up to 1 week. For extended storage, it is recommended to further dilute in a buffer containing a carrier protein (example 0.1% BSA) and store in working aliquots at -20°C to -80°C. |
| Format | Lyophilized powder |
| Storage | -20°C; Sterile filtered through a 0.2 micron filter. Lyophilized from 1X PBS, pH 7.2. |

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Provided below are standard protocols that you may find useful for product applications.
Background
CD22 is a B-lineage restricted 135 kDa glycoprotein whose cell surface expression is limited to resting and activated B lymphocytes. The physiological role of CD22 is still unknown. Targeted disruption of CD22 in mice results in a reduced level of surface IgM on peripheral B cells suggesting a role for CD22 in limiting antigen receptor signaling. CD22 is a member of the Ig gene superfamily that uniquely binds a sialic acid-dependent ligand. Recombinant human CD22 is a soluble 75.0 kDa protein which corresponds to the extracellular domain of CD22.
References
Stamenkovic I.,et al.Nature 345:74-77(1990).
Wilson G.L.,et al.J. Exp. Med. 173:137-146(1991).
Wilson G.L.,et al.J. Immunol. 150:5013-5024(1993).
Suzuki Y.,et al.Submitted (JUL-2006) to the EMBL/GenBank/DDBJ databases.
Grimwood J.,et al.Nature 428:529-535(2004).
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