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  • C6680 - Monoclonal Anti-HNK-1/N-CAM (CD57) antibody produced in mouse

C6680 Sigma-Aldrich

Monoclonal Anti-HNK-1/N-CAM (CD57) antibody produced in mouse

clone VC1.1, purified immunoglobulin, buffered aqueous solution

Synonym: Anti-CD57, Anti-N-CAM, Hnk-1 Antibody - Monoclonal Anti-HNK-1/N-CAM (CD57) antibody produced in mouse, Hnk-1 Antibody, Monoclonal Anti-HNK-1



Related Categories Alphabetical Index, Analytical Cytology, Antibodies, Antibodies for Cell Biology, Antibodies for Immune Cell Signaling and Blood,
conjugate   unconjugated
clone   VC1.1, monoclonal
biological source   mouse
application(s)   flow cytometry: 5 μL using 1 × 106 cells
  immunohistochemistry (formalin-fixed, paraffin-embedded sections): suitable
species reactivity   rat, human, feline, mouse
form   buffered aqueous solution
shipped in   wet ice
storage temp.   2-8°C
antibody form   purified immunoglobulin
isotype   IgM
antibody product type   primary antibodies
UniProt accession no.   Q9P2W7
Gene Information   human ... B3GAT1(27087)
mouse ... B3gat1(76898)
rat ... B3gat1(117108)


General description

Mouse Monoclonal Anti-Human CD57/HNK-1 (mouse IgM isotype) is derived from the VC1.1 hybridoma produced by the fusion of mouse myeloma cells and splenocytes from BALB/c mice immunized with a homogenate of cat cerebral cortical area 17. Human natural killer-1 (HNK-1) also called β-1,3-glucuronyltransferase (B3GAT1), is mapped to human chromosome 11q25 and belongs to the glucuronyltransferase gene family. CD57/ HNK-1 is expressed on a subpopulation (15-20%) of peripheral blood mononuclear cells. Expression of the antigen was described for about 60% of NK active cells and for a T-cell subset.


Recognizes the CD57/HNK-1 human myeloid cell associated surface glycoprotein. The epitope recognized is an N-linked carbohydrate which is present in a variety of glycoproteins and in some glycolipids. It is resistant to formalin fixation and paraffin embedding. VC1.1 antibody and the HNK-1 (Leu7) antibody inhibit the binding of each other. The antibody recognizes myelin associated glycoprotein in some species and a high molecular weight chondroitin sulphate proteoglycan.
5th Workshop: code no. NK 67


A homogenate of cat primary visual cortex (area 17)


Monoclonal Anti-HNK-1/N-CAM (CD57) antibody produced in mouse has been used in:
• immunohistochemistry
• immunostaining and microscopy
• immunocytochemistry
• immunofluorescence

Target description

CD57/HNK-1 is expressed on a subpopulation of 15-20% of peripheral blood mononuclear cells, about 60% of NK active cells and on a subset of T cells.

Physical form

Solution in 0.01 M phosphate buffered saline, pH 7.4, containing 1% bovine serum albumin and 15 mM sodium azide


Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Biochem/physiol Actions

Human natural killer-1 (HNK-1)/cluster of differentiation (CD57) is also found on some B-cell lines and B lymphocytic leukemia (B-CLL) melanoma lines. The antigen is also detected in lymphoid tissues, certain neuronal subsets, peripheral nerve Schwann cells, and normal, benign, and malignant prostate. Neurofibromas, schwannomas, traumatic neuromassmall cell lung carcinomas frequently express HNK-1. CD57/HNK-1 appears to be expressed in many species ranging from insects to humans. It is thought to be involved in cellular adhesion events and is expressed on several adhesion related proteins including most neural immunoglobulins superfamily molecules.

Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 
Protocols & Articles


Antibody Basics

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