Ultrastructural localization of lysozyme in the human nasal gland by protein A-gold technique.

Abstract
The ultrastructural localization of lysozyme was studied using the protein A-Au technique in the human nasal gland. There was much in the secretory granules of the serous cells, but not in the mucous cells. Some granules of the serous cells had a central core; these had more lysozyme. Much lysozyme was also found in the secretory material within the glandular lumen in forms associated with a central core or in amorphous secretion, suggesting its protective role here against bacterial infection.