Abstract
1. 1. Hadrurus arizonensis serum lectins were found to be heterogeneous in specificity but all fractions bound sialoconjugates bearing terminal oligosaccharides NANA(NGNA)-α-2-3(6)Gal- and NAN(NGNA)-α-2-6-GalNAc. 2. 2. The oligosaccharide NANA-α-2-8-NANA- from colominic acid was not recognized by any of H. arizonensis lectin fractions. 3. 3. No galactosyl-binding lectins were detected in H. arizonensis, but were earlier observed in scorpions Androctonus australis and Centruroides sculpturatus, from the Buthidae family. 4. 4. In this respect the serological behaviour of H. arizonensis lectin was similar to those from other American Vaejovidae species studied previously: Vaejovis spinigerus and Paruroctonus mesaensis. 5. 5. These results and our former studies suggest that sialic acid-binding serum lectins are ubiquitous within the Chelicerata species studied so far.
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