Multivalent cross-linking of membrane Ig sensitizes murine B cells to a broader spectrum of CpG-containing oligodeoxynucleotide motifs, including their methylated counterparts, for stimulation of proliferation and Ig secretion. - Goeckeritz BE; Flora M; Witherspoon K; Vos Q; Lees A; Dennis GJ; Pisetsky DS; Klinman DM; Snapper CM; Mond JJ (International immunology, 1999)