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Surface plasmon resonance sensograms obtained at different concentrations of IgG anti-DNA antibodies interacting with immobilised 32 bp oligonucleotide or circular pUC18 dsDNA. IgG anti-DNA antibodies from CLIFT positive serum 160 binds both DNA ligands, while those from CLIFT negative serum 135 bind the oligonucleotide, but not pUC18. See table 1 for extended data, and "Materials and methods" for experimental details.
