CRTAM Antibody (210213) [Unconjugated]

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Product Details

Summary
Reactivity HuSpecies Glossary
Applications WB, Flow, CyTOF-ready
Clone
210213
Clonality
Monoclonal
Host
Mouse
Conjugate
Unconjugated
Concentration
LYOPH

CRTAM Antibody (210213) [Unconjugated] Summary

Additional Information
Clone 210213 was used by HLDA to establish CD designation
Immunogen
Mouse myeloma cell line NS0-derived recombinant human CRTAM
Ser18-Ser286
Accession # O95727
Specificity
Detects human CRTAM in direct ELISAs and Western blots. In direct ELISAs and Western blots, no cross-reactivity with recombinant mouse CRTAM is observed.
Source
N/A
Isotype
IgG2b
Clonality
Monoclonal
Host
Mouse
Gene
CRTAM
Purity Statement
Protein A or G purified from hybridoma culture supernatant
Innovator's Reward
Test in a species/application not listed above to receive a full credit towards a future purchase.

Applications/Dilutions

Dilutions
  • CyTOF-ready
  • Flow Cytometry 2.5 ug/10^6 cells
  • Western Blot 1 ug/mL
Publications
Read Publications using
MAB16951 in the following applications:

Packaging, Storage & Formulations

Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Buffer
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
Preservative
No Preservative
Concentration
LYOPH
Reconstitution Instructions
Reconstitute at 0.5 mg/mL in sterile PBS.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for CRTAM Antibody (210213) [Unconjugated]

  • CD355 antigen
  • CD355
  • class I MHC restricted T cell associated molecule
  • class-I MHC-restricted T cell associated molecule
  • Class-I MHC-restricted T-cell-associated molecule
  • CRTAM
  • cytotoxic and regulatory T cell molecule
  • cytotoxic and regulatory T-cell molecule

Background

CRTAM (Class I-restricted T cell-associated molecule) is a nectin family member of the immunoglobulin superfamily that is expressed by activated CD8+ and NK T cells (1‑4). NK activation receptor engagement, but not cytokines, also induce NK CRTAM expression (4, 5). CRTAM is found in spleen, thymus, small intestine, peripheral blood, and surprisingly, in brain where it is highly expressed by Purkinje cells of the cerebellum (1, 2). Human CRTAM is a 393 amino acid (aa), 80 kDa type I transmembrane glycoprotein with a 17 aa signal sequence, a 269 aa extracellular domain (ECD), a 21 aa transmembrane segment and an 84 aa cytoplasmic domain. The ECD has one V-type and one C1-type Ig-like domain, while the cytoplasmic region shows a potential class I PDZ domain (1‑5). Human CRTAM ECD shows 70%, 43% and 63% aa identity with mouse, rat and canine CRTAM ECD, respectively, but 73‑78% aa identity within the Ig-like domains. The V-type Ig-like domain mediates interaction with the corresponding domain on another nectin family member, IGSF4 (also called TSLC-1, Necl-2, Syncam or SgIGSF) (4, 5). CRTAM is a homodimer on the cell surface but does not show homotypic binding in trans (3‑5). The high affinity of CRTAM/IGSF4 adhesion allows CRTAM to disrupt IGSF4 homotypic interactions (3‑5). IGSF4 and T cell receptor co-engagement of CRTAM-expressing CD8+ cells induces increased IFN-gamma or IL-22 production (3, 4). A role in cancer surveillance through NK cell-mediated rejection of IGSF4-expressing tumors has been proposed (3‑5). IGSF4 is expressed broadly, including on epithelia, neurons, a subset of tonsillar B cells (4, 5), and a rare splenic T zone-restricted BCDA3+ dendritic cell population which interacts with CRTAM (3).

  1. Kennedy, J. et al. (2000) J. Leukoc. Biol. 67:725.
  2. Patino-Lopez, G. et al. (2006) J. Neuroimmunol. 171:145.
  3. Galibert, L. et al. (2005) J. Biol. Chem. 280:21955.
  4. Boles, K. S. et al. (2005) Blood 106:779.
  5. Arase, N. et al. (2005) Int. Immunol. 17:1227.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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Bioinformatics

Gene Symbol CRTAM
Uniprot