Table 3. Antibodies to MCPs are not elicited by immunization with gp120 or by HIV infection.

Antibody Source	Antibody titer to
	gp120MN	419–439	426–441	363–384
Murine antisera to gp120MN *	1,970,000	160	200	100
HIV Immunoglobulin**	1,250,000	1,600	1,300	900

ELISA wells were coated with gp120_MN or with MCPs listed in the Table, and antibody titers were determined.

^*Sera were obtained from C3H/HeJ mice immunized with gp120_MN.

^**HIV Immunoglobulin, purified from pooled HIV+ human plasma.