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Recombinant Human CD48 antigen (CD48) (Active)

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Citations (1)
Code CSB-MP004941HU
Abbreviation Recombinant Human CD48 protein (Active)
MSDS
MSDS Datasheet
Size $9.9
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  • CSB-MP004941HU SDS-page

    (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.

  • CSB-MP004941HU-AC SDS-page

    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

  • The purity of CD48 was greater than 95% as determined by SEC-HPLC
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Product Details

Purity
Greater than 90% as determined by SDS-PAGE.
Greater than 95% as determined by SEC-HPLC.
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 hFc1-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.
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.
Description

CD48, a SLAM family member (SLAMF2) that engages 2B4 (CD244) and CD2 to modulate NK cell and T cell cytotoxicity, plays a critical role in immune surveillance relevant to immuno-oncology research. This recombinant human CD48 covers the full-length mature extracellular domain (aa 27–220) with a C-terminal hFc1 tag, and its mammalian cell expression supports native-like glycosylation and conformational integrity essential for faithful receptor-ligand interaction studies. Functional ELISA validation demonstrates robust binding to an anti-CD48 rabbit monoclonal antibody with an EC50 of 0.58–0.85 ng/ml, providing a reliable positive control and supporting applications such as therapeutic antibody epitope mapping, blocking antibody screening, and affinity characterization by SPR or BLI. Purity exceeding 90% by SDS-PAGE combined with endotoxin levels below 1.0 EU/μg satisfies the criteria typical for cell-based immune checkpoint assays and small-molecule or biologic inhibitor screening in drug discovery workflows.

Citations

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CD48 Antibodies

CD48 Proteins

Customer Reviews and Q&A

■ Customer Reviews
Average Rating:
5.0 - 1 reviews

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Applications : Binding assay/Protein-protein interaction

Review: I used the CSB-MP004941HU product for an ELISA experiment, and the EC50 was measured to be 0.8210-1.109 ng/ml. The results showed that the protein has good binding activity. The protein is stable, the experimental repeatability is good, and the protocol on the website is also very detailed! The experiment progressed smoothly!

By Anonymous

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Target Background

Function
Ligand for CD2. Might facilitate interaction between activated lymphocytes. Probably involved in regulating T-cell activation.
Gene References into Functions
  1. soluble CD48 levels were significantly elevated in patients with nonallergic asthma compared to control and to the allergic asthma cohort PMID: 30306094
  2. 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
  3. 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
  4. 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
  5. 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
  6. 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
  7. 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
  8. 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
  9. we propose that SLAMF2 engagement regulates adaptive immune responses PMID: 24670806
  10. 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
  11. 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
  12. Stimulation of CD48 induces rearrangement of signaling factors in lipid rafts, Lck-kinase activity, and tyrosine phosphorylation. PMID: 20833258
  13. 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
  14. CM1-induced apoptosis is achieved via different initiation pathways, which are cell-type dependent PMID: 12072193
  15. 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
  16. 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
  17. 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
  18. 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
  19. 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
  20. CD48 is an interleukin (IL)-3-induced activating receptor on eosinophils and may be involved in promoting allergic inflammation. PMID: 16785501
  21. 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
  22. 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
  23. 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

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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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Related pathways
Natural killer cell mediated cytotoxicity Cell markers
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