Figure 1.

Specificity of selected phage and synthetic peptides for the BCL₁ idiotype. (A) Binding of selected phage clones to BCL₁ IgM coated on plastic in the absence (solid bars) or presence (open bars) of 100 μg/ml of anti-Id B1 IgG (mean of triplicates ± SD). (B) The binding of ¹²⁵I-labeled B1 IgG to BCL₁ IgM coated on plastic (3 μg/ml in PBS) was competed with increasing amounts of B1 IgG (•), peptide S (▪), peptide D (Δ), and peptide F (⋄). Data shown are means of duplicates ± SD.