Human CD80 (B7-1) is a costimulatory ligand for CD28 and CTLA-4.   CD80 is expressed on activated B cells (4).

Isotype: Murine IgMk

Immunogen: Transformed B lymphoblastoid cells (Baboon)

Specificity: Antibody BB1 recognizes the CD80 molecule of 60 kd (1, 6).  It has been reported to be cross reactive with porcine CD80.

Functional Application: Antibody BB1 blocks adhesion to CD28/CTLA-4, blocks Th induced B cell Ig synthesis and  blocks binding of soluble CD152-muIg fusion protein to CD80.  Clone BB1 does not bind to formaldehyde fixed cells.


1.  T. Yokochi, R.D. Holly & E.A. Clark, (1982) J Immunol  128: 823-827.

2.  P.S. Linsley, et al, (1990) Proc Natl Acad Sci USA  87: 5031-5035.

3.  N.K. Damle, et al, (1991) Eur J Immunol  21: 1277-1282.

4.  Leukocyte Typing V (S.F. Schlossman, et al, eds.) Oxford University Press, Oxford, (1995) p. 682-684.

5.  D. Mauri, et al, (1995) J Immunol  155: 118-127.

6.  G.J. Freeman, et al, (1998) J Immunol  161:2708-2715.

USD $185.00

In cart: 0
= $185.00
Catalog #: 100-020
Form: Pur/WA
Size: 100 µg
Alternate Name: B7-1
Clone: BB1


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