Anti-CD81 Antibody [Eat2] (PE) (A280313)

Anti-CD81 Antibody [Eat2] (PE)

Hamster monoclonal [Eat2] antibody to CD81 (PE).

This antibody recognises mouse and rat CD81, also known as TAPA-1 or Target of the antiproliferative antibody 1. CD81 is a 236 amino acid ~26 kDa multipass transmembrane protein belonging to the TM4SF family (UniProt: P35762). In rodents CD81 is expressed at much higher levels on resting B cells than on T cells, although increased expression on T cells is found following activation. Hamster anti Mouse CD81 antibody, clone Eat2 induces homotypic aggregation of B cells and inhibits anti Ig and IL-4 induced proliferation. Eat 2 requires the presence of both extracellular loops of TAPA-1 for binding.Mice lacking CD81 demonstrate reduced fertility through impaired oocyte-sperm fusion, double knockout CD81-/- CD9-/- mice are completely infertile suggesting complimentary roles in oocyte-sperm fusion.

Flow Cytometry: Neat, Use 10µl of the suggested working dilution to label 10⁶ cells in 100µl. The Fc region of monoclonal antibodies may bind to cells expressing low affinity fc receptors. This may be reduced by using SeroBlock FcR (BUF041A/BUF041B).

Mouse, Rat

38C13, murine B cell line.

Hamster

Monoclonal

Eat2

Protein G affinity chromatography of tissue culture supernatant.

Reconstitution dependent.

Lyophilized

Reconstitute with 1 ml of distilled water.

Supplied in Phosphate Buffered Saline with 1% BSA, 5% Sucrose, and 0.09% Sodium Azide.

Store undiluted at 4°C. Do not freeze! This product is photosensitive and should be protected from light. Should this product contain a precipitate we recommend microcentrifugation before use.

Hamster anti Mouse CD81 antibody, clone Eat2 recognizes mouse and rat CD81, also known as TAPA-1 or Target of the antiproliferative antibody 1. CD81 is a 236 amino acid ~26 kDa multipass transmembrane protein belonging to the TM4SF family (UniProt: P35762). In rodents CD81 is expressed at much higher levels on resting B cells than on T cells, although increased expression on T cells is found following activation. Hamster anti Mouse CD81 antibody, clone Eat2 induces homotypic aggregation of B cells and inhibits anti Ig and IL-4 induced proliferation (Maecker et al. 2000). Eat 2 requires the presence of both extracellular loops of TAPA-1 for binding.Mice lacking CD81 demonstrate reduced fertility through impaired oocyte-sperm fusion, double knockout CD81-/- CD9-/- mice are completely infertile suggesting complimentary roles in oocyte-sperm fusion (Rubenstein et al. 2006).

26 kDa cell surface protein TAPA-1, CD81 antigen, TAPA1, Target of the antiproliferative antibody 1, Tetraspanin-28, Tspan-28, TSPAN28

This product is for research use only. It is not intended for diagnostic or therapeutic use.