MeSH note : from normal adult feces; glycoprotein MW 20,000-30,000; related to but different from
carcinoembryonic antigen; first 10 amino acid sequence different from CEA; do not
confuse with adhesin, E coli, which is also called NFA-1;
MeSH synonym : antigen-1, normal fecal; NFA-1; normal fecal antigen-1;