Name:
Biotinylated Siglec-2 Protein
Synonyms:
Siglec-2, CD22, BL-CAM,Siglec2
Species Name:
Human
Label Name:
Human Fc Tag, Avi Tag
Marker Name:
Biotin
Accession:
P20273-1
Gene Id:
Asp20-Arg687, with C-terminal Fc & Avi TagDSSKWVFEHPETLYAWEGACVWIPCTYRALDGDLESFILFHNPEYNKNTSKFDGTRLYESTKDGKVPSEQKRVQFLGDKNKNCTLSIHPVHLNDSGQLGLRMESKTEKWMERIHLNVSERPFPPHIQLPPEIQESQEVTLTCLLNFSCYGYPIQLQWLLEGVPMRQAAVTSTSLTIKSVFTRSELKFSPQWSHHGKIVTCQLQDADGKFLSNDTVQLNVKHTPKLEIKVTPSDAIVREGDSVTMTCEVSSSNPEYTTVSWLKDGTSLKKQNTFTLNLREVTKDQSGKYCCQVSNDVGPGRSEEVFLQVQYAPEPSTVQILHSPAVEGSQVEFLCMSLANPLPTNYTWYHNGKEMQGRTEEKVHIPKILPWHAGTYSCVAENILGTGQRGPGAELDVQYPPKKVTTVIQNPMPIREGDTVTLSCNYNSSNPSVTRYEWKPHGAWEEPSLGVLKIQNVGWDNTTIACAACNSWCSWASPVALNVQYAPRDVRVRKIKPLSEIHSGNSVSLQCDFSSSHPKEVQFFWEKNGRLLGKESQLNFDSISPEDAGSYSCWVNNSIGQTASKAWTLEVLYAPRRLRVSMSPGDQVMEGKSATLTCESDANPPVSHYTWFDWNNQSLPYHSQKLRLEPVKVQHSGAYWCQGTNSVGKGRSPLSTLTVYYSPETIGRRGGGSGGGSPKSSDKTHTCPPCPAPELLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSHEDPEVKFNWYVDGVEVHNAKTKPREEQYNSTYRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISKAKGQPREPQVYTLPPSRDELTKNQVSLTCLVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLSPGKGLNDIFEAQKIEWHE
Molecular Weight:
115-125kDa
Purity:
>95% by SDS-PAGE
Physical Appearance Name:
Lyophilized Powder
Endotoxin Name:
<0.1EU/μg
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, -20 to -70 °C as supplied; 6 months, -20 to -70 °C under sterile conditions after reconstitution; 1 week, 2 to 8 °C under sterile conditions after reconstitution; Please avoid repeated freeze-thaw cycles.
Buffer System:
PBS, pH7.4
Quality Statement:
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.
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): 1-9.2、Walker J A. et al. (2008) CD22: an inhibitory enigma. Immunology. 123(3): 314-325.3、Nitschke L. (2009) CD22 and Siglec-G: B-cell inhibitory receptors with distinct functions. Immunol Rev. 230(1): 128-143.
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