Revision 1
Cell Signaling Technology

Orders: 877-616-CELL (2355) [email protected]

Support: 877-678-TECH (8324)

Web: [email protected] cellsignal.com

3 Trask LaneDanversMassachusetts01923USA
For Research Use Only. Not for Use in Diagnostic Procedures.
Applications:

FC-FP, FC-L

REACTIVITY:

H

SENSITIVITY:

Endogenous

MW (kDa):

Source/Isotype:

Mouse IgM

Product Information

Product Usage Information

Application Dilution
Flow Cytometry (Fixed/Permeabilized) 1:50
Flow Cytometry (Live) 1:50

Storage

Supplied in PBS (pH 7.2), less than 0.1% sodium azide and 2 mg/ml BSA. This product is stable for 12 months when stored at 4°C. Do not aliquot the antibody. Protect from light. Do not freeze.

Specificity / Sensitivity

CD57 (HNK-1) Mouse mAb (Pacific Blue Conjugate) recognizes the CD57 carbohydrate modification produced by the B3GAT1 protein enzyme.

Species Reactivity:

Human

Source / Purification

Monoclonal antibody is produced by immunizing animals with a membrane antigen from HSB-2 cells.

Product Description

This Cell Signaling Technology antibody is conjugated to Pacific Blue fluorescent dye and tested in-house for direct flow cytometric analysis in human cells. The antibody is expected to exhibit the same species cross-reactivity as the unconjugated antibody CD57 (HNK-1) Mouse mAb #72031.

Background

CD57 antigen, also known as HNK-1 and Leu7, is a terminally sulfated glycan carbohydrate epitope (glyco-epitope) expressed on a variety of proteins, lipids, and chondroitin sulfate proteoglycans at the cell surface (1,2). CD57 is synthesized by the enzyme B3GAT1 and is present on a subset of peripheral blood lymphocytes, including NK cells and CD8+ T cells, as well as neural cells and striated muscle (3-5). Studies have shown that CD57 is not expressed on platelets, monocytes, granulocytes, or red blood cells (6). The CD57 epitope may play a role in neural cell adhesion (7), and characterizes unique maturation states in T and NK cells (8,9). CD57 is an important marker when studying functional immune deficiency in patients with autoimmune diseases, infectious diseases, and cancers (1).

  1. Focosi, D. et al. (2010) J Leukoc Biol 87, 107-16.
  2. Górska, A. et al. (2016) Arch Immunol Ther Exp (Warsz) 64, 497-503.
  3. Kared, H. et al. (2016) Cancer Immunol Immunother 65, 441-52.
  4. Lopez-Vergès, S. et al. (2010) Blood 116, 3865-74.
  5. Mechtersheimer, G. et al. (1991) Cancer Res 51, 1300-7.
  6. Stelin, S. et al. (2009) J Indian Soc Periodontol 13, 150-4.
  7. Künemund, V. et al. (1988) J Cell Biol 106, 213-23.
  8. Sze, D.M. et al. (2001) Blood 98, 2817-27.
  9. Nielsen, C.M. et al. (2013) Front Immunol 4, 422.

Species Reactivity

Species reactivity is determined by testing in at least one approved application (e.g., western blot).

Applications Key

FC-FP: Flow Cytometry (Fixed/Permeabilized) FC-L: Flow Cytometry (Live)

Cross-Reactivity Key

H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected

Trademarks and Patents

Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
Pacific Blue is a trademark of Life Technologies Corporation.
All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.

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