Abstract

The Raman and ir spectra of a murine IgG2a monoclonal antibody molecule are reported. In accordance with previous studies on immunoglobulins, the secondary structure is predominantly of the beta-sheet type. The low frequency region of the Raman spectrum was also analyzed in detail. A structured band with two maxima near 43 and 94 cm(-1) was observed. This band has been attributed to vibrations of elastic body. The results are interpreted using a simple elastic model.

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