Recombinant Human Cytotoxic and regulatory T-cell molecule(CRTAM),partial (Active)

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Code CSB-AP005441HU
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  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
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Product Details

Purity Greater than 95% as determined by SDS-PAGE.
Endotoxin Less than 1.0 EU/μg as determined by LAL method.
Activity The ED50 as determined by its ability to bind Human CADM1 in functional ELISA is less than 20 ug/ml.
Target Names CRTAM
Uniprot No. O95727
Research Area Immunology
Alternative Names CRTAM; Cytotoxic and regulatory T-cell molecule; Class-I MHC-restricted T-cell-associated molecule; CD antigen CD355
Species Homo sapiens (Human)
Source Mammalian cell
Expression Region 18-286aa
Complete Sequence SLTNHTETITVEEGQTLTLKCVTSLRKNSSLQWLTPSGFTIFLNEYPALKNSKYQLLHHSANQLSITVPNVTLQDEGVYKCLHYSDSVSTKEVKVIVLATPFKPILEASVIRKQNGEEHVVLMCSTMRSKPPPQITWLLGNSMEVSGGTLHEFETDGKKCNTTSTLIIHTYGKNSTVDCIIRHRGLQGRKLVAPFRFEDLVTDEETASDALERNSLSSQDPQQPTSTVSVTEDSSTSEIDKEEKEQTTQDPDLTTEANPQYLGLARKKS
Mol. Weight 30.99 kDa
Protein Length Partial
Tag Info C-terminal 6xHis-tagged
Form Lyophilized powder
Buffer Lyophilized from a 0.2 μm filtered 20 mM PB, 150 mM NaCl, pH 7.2
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 Basically, we can dispatch the products out in 5-10 working days after receiving your orders. Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
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.

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Target Background

Function
Mediates heterophilic cell-cell adhesion which regulates the activation, differentiation and tissue retention of various T-cell subsets. Interaction with CADM1 promotes natural killer (NK) cell cytotoxicity and IFNG/interferon-gamma secretion by CD8+ T-cells in vitro as well as NK cell-mediated rejection of tumors expressing CADM1 in vivo. Regulates CD8+ T-cell proliferation in response to T-cell receptor (TCR) activation. Appears to be dispensable for CD8+ T-cell-mediated cytotoxicity. Interaction with SCRIB promotes the late phase of cellular polarization of a subset of CD4+ T-cells, which in turn regulates TCR-mediated proliferation and IFNG, IL17 and IL22 production. By interacting with CADM1 on CD8+ dendritic cells, regulates the retention of activated CD8+ T-cells within the draining lymph node. Required for the intestinal retention of intraepithelial CD4+ CD8+ T-cells and, to a lesser extent, intraepithelial and lamina propria CD8+ T-cells and CD4+ T-cells. Interaction with CADM1 promotes the adhesion to gut-associated CD103+ dendritic cells, which may facilitate the expression of gut-homing and adhesion molecules on T-cells and the conversion of CD4+ T-cells into CD4+ CD8+ T-cells.
Gene References into Functions
  1. These results reveal that CRTAM is critical to instruct the differentiation of CD4(+)CTL through the induction of Eomes and CTL-related gene. PMID: 26694968
  2. CRTAM is negatively regulated by ZEB1 in T cells. PMID: 25910959
  3. Case-control studies reveal malignant mesothelioma risk associated with variants in the SDK1, CRTAM and RASGRF2 genes. PMID: 23827383
  4. The cell adhesion molecule Necl-2 competitively binds the immune receptor CRTAM. PMID: 23871486
  5. The expression of CRTAM in activated Vgamma9Vdelta2 T cells is quickly downregulated following interaction with Necl-2 on tumor cells. PMID: 23530148
  6. Three common variants in the class I MHC-restricted T cell-associated molecule gene were identified that were associated with an increased rate of asthma exacerbations based on the presence of a low circulating vitamin D level. PMID: 22051697
  7. Results show that CRTAM is a molecule involved in epithelial cell adhesion. PMID: 20556794
  8. Necl2/CRTAM molecular pair could regulate a large panel of cell/cell interactions both within and outside of the immune system PMID: 15781451
  9. NK cells and T8 cells recognize Necl-2 through CRTAM, expressed only on activated cells. CRTAM-Necl-2 interactions promote cytotoxicity of NK cells and IFN-gamma secretion of T8 cells as well as NK cell-mediated rejection of tumors expressing Necl-2 PMID: 15811952
  10. CRTAM expression is driven by the JNK-AP-1 signaling pathway. PMID: 19695707

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Subcellular Location Cell membrane; Single-pass type I membrane protein.
Protein Families Nectin family
Tissue Specificity In the immune system, expression is restricted to activated class-I MHC-restricted cells, including NKT and CD8 T-cells. Strongly expressed in spleen, thymus, small intestine, peripheral blood leukocyte, and in Purkinje neurons in cerebellum. Expressed at
Database Links

HGNC: 24313

OMIM: 612597

KEGG: hsa:56253

STRING: 9606.ENSP00000227348

UniGene: Hs.159523

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