From: Factors affecting antimicrobial activity of MUC7 12-mer, a human salivary mucin-derived peptide
Saliva (mM)
Plasma (mM)
Ca2+
1–2
2.5
Mg2+
0.2–0.5
0.5–1.0
Na+
6–26
140
K+
14–32
4
NH4 +
1–7
0.03
pH
6.7
pH range
6.2–7.6