The black Sambucus nigra lectin isolated from the bark of elderberry preferentially binds to the terminal galactose-linked sialic acid in alpha-2,6, and alpha-2,3 chains. Lactose or galactose also inhibit binding to some extent. This lectin appears to bind to sialic acid to n-acetylgalactose, or galactose. It has been reported that SNA can inhibit the synthesis of cell-free proteins.
For research use only, not for clinical use.