CD22 active protein
CD22 protein
Gene Names
CD22; SIGLEC2; SIGLEC-2
Applications
User optimized.
Purity
> 98% by SDS-PAGE and HPLC analyses
Synonyms
CD22; CD22 protein; CD-22; FceRII protein; CD 22; CD-22 protein; CD 22 protein; CD22 active protein
Host
CHO Cells
Purity/Purification
> 98% by SDS-PAGE and HPLC analyses
Form/Format
Sterile 0.2 micron filtered. Lyophilized from 1x PBS, pH 7.2. Centrifuge vial prior to opening. Reconstitute in water to a concentration of 0.1-1.0 mg/ml. Do not vortex.
Concentration
20ug/vial; lyophilized (varies by lot)
Sequence
Region of CD22 protein corresponding to amino acids 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.
Sequence Length
40
Applicable Applications for CD22 active protein
User optimized.
Grade
Recombinant human
Contaminants
Endotoxin < 0.1 ng per ug (<1 EU/ug)
Bioactivity
Determined by its ability to inhibit the proliferation of Raji cells. The expected ED50 for this effect is 10-17 ug/ml.
Preparation and Storage
Ships on blue ice. Upon receipt store at 4°C short term, -20°C long term. After reconstituted, working aliquots stored with a carrier protein are stable for at least 3 months at -20°C. Avoid repeated freeze/thaw cycles.
Related Product Information for CD22 active protein
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.
Product Categories/Family for CD22 active protein
NCBI and Uniprot Product Information
NCBI GI #
NCBI GeneID
NCBI Official Full Name
CD22, partial
NCBI Official Synonym Full Names
CD22 molecule
NCBI Official Symbol
CD22
NCBI Official Synonym Symbols
SIGLEC2; SIGLEC-2
NCBI Protein Information
B-cell receptor CD22
UniProt Protein Name
CD22 protein
Protein Family
UniProt Gene Name
CD22
UniProt Entry Name
Q9UQB2_HUMAN
Uniprot Description
CD22: Mediates B-cell B-cell interactions. May be involved in the localization of B-cells in lymphoid tissues. Binds sialylated glycoproteins; one of which is CD45. Preferentially binds to alpha-2,6-linked sialic acid. The sialic acid recognition site can be masked by cis interactions with sialic acids on the same cell surface. Upon ligand induced tyrosine phosphorylation in the immune response seems to be involved in regulation of B-cell antigen receptor signaling. 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. Belongs to the immunoglobulin superfamily. SIGLEC (sialic acid binding Ig-like lectin) family. 2 isoforms of the human protein are produced by alternative splicing.
Protein type: Membrane protein, integral; Cell surface
Chromosomal Location of Human Ortholog: 19q13.1
Cellular Component: integral to plasma membrane; external side of plasma membrane
Molecular Function: protein binding; carbohydrate binding
Biological Process: cell adhesion
Research Articles on CD22
Similar Products
Product Notes
The CD22 cd22 (Catalog #AAA539532) is an Active Protein produced from CHO Cells and is intended for research purposes only. The product is available for immediate purchase. AAA Biotech's CD22 can be used in a range of immunoassay formats including, but not limited to, User optimized. Researchers should empirically determine the suitability of the CD22 cd22 for an application not listed in the data sheet. Researchers commonly develop new applications and it is an integral, important part of the investigative research process. The amino acid sequence is listed below: Region of CD22 protein correspond ing to amino acids 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. It is sometimes possible for the material contained within the vial of "CD22, Active Protein" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.Precautions
All products in the AAA Biotech catalog are strictly for research-use only, and are absolutely not suitable for use in any sort of medical, therapeutic, prophylactic, in-vivo, or diagnostic capacity. By purchasing a product from AAA Biotech, you are explicitly certifying that said products will be properly tested and used in line with industry standard. AAA Biotech and its authorized distribution partners reserve the right to refuse to fulfill any order if we have any indication that a purchaser may be intending to use a product outside of our accepted criteria.Disclaimer
Though we do strive to guarantee the information represented in this datasheet, AAA Biotech cannot be held responsible for any oversights or imprecisions. AAA Biotech reserves the right to adjust any aspect of this datasheet at any time and without notice. It is the responsibility of the customer to inform AAA Biotech of any product performance issues observed or experienced within 30 days of receipt of said product. To see additional details on this or any of our other policies, please see our Terms & Conditions page.Item has been added to Shopping Cart
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