Biochemical characterization of the small hydrophobic protein of avian metapneumovirus

► Provide direct evidence that AMPV SH protein is modified by N-linked glycans. ► Demonstrate that AMPV SH protein is released into the extracellular environment. ► Discover that the glycosylated AMPV SH protein forms cysteine-mediated homodimers. ► Reveal a relationship between glycosylation and dimerization.