CD Antigens Recombinant Proteins

Human CD22 Recombinant Protein (RPPB3034)

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RPPB3034

Description

system_update_altDatasheetsystem_update_altMSDS
Product Name:Human CD22 Recombinant Protein
Product Code:RPPB3034
Size:5µg
Species:Human
Target:CD22
Synonyms:CD22 Molecule, CD22 Antigen, Sialic Acid-Binding Ig-Like Lectin 2, B-Lymphocyte Cell Adhesion Molecule, T-Cell Surface Antigen Leu-14, SIGLEC-2, SIGLEC2, BL-CAM, Sialic Acid Binding Ig-Like Lectin 2, B-Cell Receptor CD22.
Source:Sf9 Insect cells
Physical Appearance:Sterile filtered colorless solution.
Formulation:CD22 protein solution (0.25mg/ml) contains 10% glycerol & Phosphate Buffered Saline (pH 7.4).
Stability:Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Avoid multiple freeze-thaw cycles.
Purity:Greater than 85.0% as determined by SDS-PAGE.
Amino Acid Sequence:DSSKWVFEHP ETLYAWEGAC VWIPCTYRAL DGDLESFILF HNPEYNKNTS KFDGTRLYES TKDGKVPSEQ KRVQFLGDKN KNCTLSIHPV HLNDSGQLGL RMESKTEKWM ERIHLNVSER PFPPHIQLPP EIQESQEVTL TCLLNFSCYG YPIQLQWLLE GVPMRQAAVT STSLTIKSVF�TRSELKFSPQ WSHHGKIVTC QLQDADGKFL SNDTVQLNVK HTPKLEIKVT PSDAIVREGD SVTMTCEVSS SNPEYTTVSW LKDGTSLKKQ NTFTLNLREV TKDQSGKYCC QVSNDVGPGR SEEVFLQVQY APEPSTVQIL HSPAVEGSQV EFLCMSLANP LPTNYTWYHN GKEMQGRTEE KVHIPKILPW HAGTYSCVAE NILGTGQRGP GAELDVQYPP KKVTTVIQNP MPIREGDTVT LSCNYNSSNP SVTRYEWKPH GAWEEPSLGV LKIQNVGWDN TTIACAACNS WCSWASPVAL NVQYAPRDVR VRKIKPLSEI HSGNSVSLQC DFSSSHPKEV QFFWEKNGRL LGKESQLNFD�SISPEDAGSY SCWVNNSIGQ TASKAWTLEV LYAPRRLRVS MSPGDQVMEG KSATLTCESD ANPPVSHYTW FDWNNQSLPY HSQKLRLEPV KVQHSGAYWC QGTNSVGKGR SPLSTLTVYY SPETIGRRLE PKSCDKTHTC PPCPAPELLG GPSVFLFPPK PKDTLMISRT PEVTCVVVDV�SHEDPEVKFN WYVDGVEVHN AKTKPREEQY NSTYRVVSVL TVLHQDWLNG KEYKCKVSNK ALPAPIEKTI SKAKGQPREP QVYTLPPSRD ELTKNQVSLT CLVKGFYPSD IAVEWESNGQ PENNYKTTPP VLDSDGSFFL YSKLTVDKSR WQQGNVFSCS VMHEALHNHY TQKSLSLSPG�KHHHHHH

CD22, also known as Sialic Acid-Binding Ig-Like Lectin 2, is part of the immunoglobulin(Ig)superfamily. CD22 mediates B-cell to B-cell interactions and is implicated in the localization of B-cells in lymphoid tissues. CD22 acts as positive regulator via interaction with the Src family tyrosine kinases, in addition CD22 preform as an inhibitory receptor by recruiting cytoplasmic phosphatases.

CD22 produced in Sf9 Baculovirus cells is a single, glycosylated polypeptide chain containing 907 amino acids (20-687a.a.) and having a molecular mass of 102.1kDa. (Molecular size on SDS-PAGE will appear at approximately 100-150KDa).CD22 is expressed with a 239 amino acid hIgG-His-tag at C-Terminus and purified by proprietary chromatographic techniques.

UniProt Protein Function: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.
UniProt Protein Details:

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

UniProt Code:P20273
NCBI GenInfo Identifier:6166019
NCBI Gene ID:933
NCBI Accession:P20273.2
UniProt Secondary Accession:P20273,O95699, O95701, O95702, O95703, Q01665, Q32M46 Q92872, Q92873, Q9UQA6, F5GYU4, F5H7U3,
UniProt Related Accession:P20273
Molecular Weight:75,354 Da
NCBI Full Name:B-cell receptor CD22
NCBI Synonym Full Names:CD22 molecule
NCBI Official Symbol:CD22��
NCBI Official Synonym Symbols:SIGLEC2; SIGLEC-2��
NCBI Protein Information:B-cell receptor CD22; BL-CAM; CD22 antigen; T-cell surface antigen Leu-14; B-lymphocyte cell adhesion molecule; sialic acid binding Ig-like lectin 2; sialic acid-binding Ig-like lectin 2
UniProt Protein Name:B-cell receptor CD22
UniProt Synonym Protein Names:B-lymphocyte cell adhesion molecule; BL-CAM; Sialic acid-binding Ig-like lectin 2; Siglec-2; T-cell surface antigen Leu-14; CD_antigen: CD22
Protein Family:CD226 antigen
UniProt Gene Name:CD22��
UniProt Entry Name:CD22_HUMAN
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Additional Information

Product Type:
Recombinant Protein
Species:
Human
Uniprot:
P20273
Research Area:
CD Antigens
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system_update_altDatasheetHuman SIGLEC2/CD22 Recombinant Protein CD22 is a member of the immunoglobulin superfamily; SIGLEC family of lectins. It is first expressed in the cytoplasm of pro-B and