Sheep anti Human secretory component (free and bound), conjugated with Biotin

The lyophilized conjugate is shipped at ambient temperature and may be stored at +4 °C; prolonged storage at or below -20 °C. Prior to use, an aliquot is thawed slowly at ambient temperature, spun down again and used to prepare working dilutions by adding sterile phosphate buffered saline (PBS, pH 7.2). Repeated thawing and freezing should be avoided. Working dilutions should be stored at +4 °C, not refrozen, and preferably used the same day. If a slight precipitation occurs upon storage, this should be removed by centrifugation. It will not affect the performance of the immunoconjugate.

Biotin-conjugated IgG fraction of polyclonal sheep antiserum to human secretory component, free and bound<br>Inter-species cross-reactivity is a normal feature of antibodies to proteins, since homologous proteins of different species frequently share antigenic determinants. Cross-reactivity of this antiserum has not been tested in detail.