Name: Recombinant Human CD48 antigen(CD48) (Active)
Brand: CUSABIO
SKU: CSB-MP004941HU

Product Details

Description	Human CD48 amino acid Gln27-Ser220 with an N-terminal linker, a TEV (tobacco etch virus)+linker, and a C-terminal human IgG1 Fc tag (Pro100-Lys330), was expressed in mammalian cells. The resulting product is the recombinant human CD48 antigen. The purity of this CD48 protein reaches up to 91% detected by SDS-PAGE. This protein ran at a molecular weight of about 60 kDa by SDS-PAGE due to glycosylation. Its endotoxin content is less than 1.0 EU/ug determined by the LAL method. The bioactivity of this recombinant CD48 protein was measured in a functional ELISA. This CD48 protein can bind to the CD48 antibody with an EC₅₀ constant of 0.5806-0.8463 ng/ml. And it is available now. CD48 is a glycosylphosphatidylinositol-anchored protein mainly expressed on hematopoietic cells as membrane-associated and soluble forms. Through interaction with its ligands such as CD2 and CD244, CD48 is involved in adhesion and activation of immune cells, modulation of target cell lysis by cytolytic cells, and detection of microbes through the CD48-Fimh interaction. CD48 is upregulated under inflammatory conditions and some hematologic malignancies.
Purity	Greater than 91% as determined by SDS-PAGE.
Endotoxin	Less than 1.0 EU/ug as determined by LAL method.
Activity	Measured by its binding ability in a functional ELISA. Immobilized CD48 at 2 μg/ml can bind Anti-CD48 rabbit monoclonal antibody, the EC₅₀ of human CD48 protein is 0.5806-0.8463 ng/ml.
Target Names	CD48
Uniprot No.	P09326
Research Area	Cancer
Alternative Names	B-lymphocyte activation marker BLAST-1 (BCM1 surface antigen) (Leukocyte antigen MEM-102) (SLAM family member 2) (SLAMF2) (Signaling lymphocytic activation molecule 2) (TCT.1) (CD48) (BCM1) (BLAST1)
Molecular Characterization
Species	Homo sapiens (Human)
Source	Mammalian cell
Expression Region	27-220aa
Target Protein Sequence	QGHLVHMTVVSGSNVTLNISESLPENYKQLTWFYTFDQKIVEWDSRKSKYFESKFKGRVRLDPQSGALYISKVQKEDNSTYIMRVLKKTGNEQEWKIKLQVLDPVPKPVIKIEKIEDMDDNCYLKLSCVIPGESVNYTWYGDKRPFPKELQNSVLETTLMPHNYSRCYTCQVSNSVSSKNGTVCLSPPCTLARS
Mol. Weight	51.3 kDa
Protein Length	Full Length of Mature Protein
Tag Info	C-terminal hFc-tagged
Form	Lyophilized powder Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
Buffer	If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. Note: If you have any special requirement for the glycerol content, please remark when you place the order. If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
Reconstitution	We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.
Troubleshooting and FAQs	Protein FAQs
Storage Condition	Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life	The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Lead Time	3-7 business days
Notes	Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet & COA	Please contact us to get it.

Target Background

Function	Ligand for CD2. Might facilitate interaction between activated lymphocytes. Probably involved in regulating T-cell activation.
Gene References into Functions	soluble CD48 levels were significantly elevated in patients with nonallergic asthma compared to control and to the allergic asthma cohort PMID: 30306094 mCD48 and sCD48 are differentially expressed in the peripheral blood of asthma patients of varying severity. sCD48 inhibits CD244-mediated eosinophil activation. These findings suggest that CD48 may play an important role in human asthma. PMID: 27859399 The present study provides further insights into the role of the 2B4-CD48 interaction in the fine regulation of CD8(+) T-cell effector function upon antigenic stimulation. PMID: 26860368 Data show that 2B4 not only can bind to CD48 in trans but also interacts with CD48 in cis by using the same binding interface. Also, the results demonstrated that constitutive phosphorylation of 2B4 occurs only in the presence of CD48, and that cis binding is sufficient to induce substantial levels of baseline phosphorylation. PMID: 27249817 Our data indicate sCD48 as a SEB-induced 'decoy' receptor derived from eosinophil and therefore as a potential anti-inflammatory tool in S. aureus-induced eosinophil inflammation often associated with allergy. PMID: 26836239 CD48 expression was increased in patients with a short disease duration compared to both controls and patients with longer disease duration. In patients with short disease duration, increased CD48 expression was associated with alveolar inflammation. PMID: 26926492 These data demonstrate the important role of CD48 in SA/exotoxins-eosinophil activating interactions that can take place during allergic responses and indicate CD48 as a novel therapeutic target for allergy and especially of AD. PMID: 25255823 Blockade of 2B4/CD48 interaction resulted in improvement in function via perforin expression and degranulation as measured by CD107a surface mobilization on HTLV-1 specific CD8+ T cells. PMID: 24505299 we propose that SLAMF2 engagement regulates adaptive immune responses PMID: 24670806 Monocyte-induced natural killer cell dysfunction was markedly attenuated by blocking CD48 receptor 2B4 on NK cells, but not by blockade of NKG2D and NKp30. PMID: 23225218 replication study of association of 2 SNPs in HERV-K18 and 19 tagSNPs in CD48 with schizophrenia (SZ)and type 2 diabetes (T2D) in patients with SZ in 2 Danish samples; no association was found with SZ or with T2D among individuals with SZ for any of the SNPs PMID: 22495247 Stimulation of CD48 induces rearrangement of signaling factors in lipid rafts, Lck-kinase activity, and tyrosine phosphorylation. PMID: 20833258 The ligand (CD48) of the 2B4 receptor can exert both activating and inhibiting signals; natural killer (NK) cells might be at risk for self-killing were it not for the inhibiting signals generated by the 2B4-CD48 interaction. PMID: 20164429 CM1-induced apoptosis is achieved via different initiation pathways, which are cell-type dependent PMID: 12072193 Signal-dependent adhesion of resting NK cells initiated by expression of ICAM-1 is greatly enhanced by coexpression of CD48, even in the absence of cytokines. PMID: 12496412 Engagement of natural killer (NK) cell receptor 2B4 by its counterreceptor, CD48, expressed on target cells leads to an inhibition in NK cytotoxicity independent of signaling lymphocytic activation molecule-associated protein (SAP) expression. PMID: 15356144 IL-18, IL-18 receptor alpha, and CD48 complex formation via glycosylphosphatidylinositol anchor glycan triggers binding to IL-18 receptor beta, and thereby induces intracellular signal transduction and IFN-gamma production. PMID: 15760905 Review of recent studies suggests an important role for interactions between 2B4 and CD48 in the course of T cell activation and proliferation PMID: 16081768 2B4 (CD244) can stimulate NK cell cytotoxicity and cytokine production by interacting with NK cell expressed CD48 and adds CD48 to the growing number of activating NK cell receptors PMID: 16585556 CD48 is an interleukin (IL)-3-induced activating receptor on eosinophils and may be involved in promoting allergic inflammation. PMID: 16785501 In conclusion, we cannot confirm a role of human endogenous retrovirus-K18 superantigen polymorphisms or of the CD48 CA repeat for type 1 diabetes susceptibility. PMID: 16866884 findings indicate that FimH induces host cell signalling cascades that are involved in E. coli K1 invasion of human brain microvascular endothelial cells (HBMEC) and CD48 is a putative HBMEC receptor for FimH PMID: 17222190 the mechanism of signal transduction by CD244 is to regulate FYN kinase recruitment and/or activity and the outcome of CD48/CD244 interactions is determined by which other receptors are engaged. PMID: 17599905 Show More Hide All
Subcellular Location	Cell membrane; Lipid-anchor, GPI-anchor.
Database Links	HGNC: 1683 OMIM: 109530 KEGG: hsa:962 STRING: 9606.ENSP00000357025 UniGene: Hs.243564

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Code	CSB-MP004941HU
Size	$428
Image	(Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel. Activity Measured by its binding ability in a functional ELISA. Immobilized CD48 at 2 μg/ml can bind Anti-CD48 rabbit monoclonal antibody, the EC₅₀ of human CD48 protein is 0.5806-0.8463 ng/ml. Biological Activity Assay
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Recombinant Human CD48 antigen(CD48) (Active)

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Target Background

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