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. 2001 Sep 3;194(5):557–570. doi: 10.1084/jem.194.5.557

Table 3.

Summary of Mouse Strains with Disrupted J Chain Locus

JDTA JcMyc J−/−
Serum Ig +/− +/−
Serum IgM +/−
Serum IgG +/− +/−
Serum IgA ++ ++ +
LP SFC ND +/−
BM SFC +/−
Spleen SFC +
Systemic IR + +/−
Gut ND

+, increased; −, decreased; +/−; unchanged; IR, immune response; and SFC, spot-forming cell.