TABLE 1.

Antibodies used for CD46 staining and blocking

Antibody	Epitope recognized	Source
GB-24	SCR3/4	T. Seya, Osaka Medical Center, Osaka, Japan
M75	SCR2	J. Atkinson, Washington University, St. Louis, Mo.
E4.3	SCR1	Pharmingen Switzerland, Basel, Switzerland
MCI20.6	SCR1	D. Gerlier, Faculté Médecine Lyon, Lyon, France
13/42	SCR1	BMA Biomedicals AG, Augst, Switzerland
Tra-2.10	SCR1	J. Atkinson
MEM-258	SCR4	Serotec Ltd., Oxford, United Kingdom
Rabbit anti-CD46 (amino acids 35-328)	Not available	Santa Cruz Biotechnology, Santa Cruz, Calif.