Table 1.

mAbs that Bind the Recombinant Proteins Used in This Study

Protein		mAb
sCD80*		2D10, mAb 104, L307, BB-1
CD28 Ig‡		CD28.1, CD28.2, CD28.3, CD28.5, CD28.6,
		CLB–CD28/1, KOLT-2
CTLA-4 Ig§		7F8, 10A8, 11D4

^* 2D10 (64) was from Dr. Daniel Olive (Inserm 119, Institut Paoli Calmettes, Marseilles, France). mAb 104 (65) was from Immunotech S.A. (Marseilles, France). L307 (66) was from Becton Dickinson (San Jose, CA). BB-1 (67) was from PharMingen (San Diego, CA).  

^‡ CD28.1–CD28.6 (68) were from Dr. Daniel Olive. CLB–CD28/ 1(15E8 in [66]) was from Dr. René A. W. van Lier (Netherlands Red Cross Blood Transfusion Service, Amsterdam, the Netherlands). KOLT-2 (69) was from Dr. Kimitaka Sagawa (Department of Immunology, Kurume University School of Medicine, Kurume, Japan).   

^§ 7F8, 10A8, 11D4 were produced as described (54).