>d1dn0d2 b.1.1.2 (D:121-225) Immunoglobulin (constant domains of L and H chains) {Fab Kau cold agglutinin (human) IgM, kappa L chain} gsasaptlfplvscenspsdtssvavgclaqdflpdsitfswkyknnsdisstrgfpsvl rggkyaatsqvllpskdvmagtdehvvckvqhpngnkeknvplpv