TABLE 2.

Summary of surface activities of SP-B derived peptides

	N-Term Helix 1,2	W9A	P2,4,6A
Rapid absorption to open interfaces	+++	—	++
Insertion into preformed phospholipid films	+++	++	+++
Expansion of lipid/peptide isotherms	+++	++	—
Stable association with compressed films beyond squeeze-out pressure	+++	—	+
Promotion of rapid reinsertion of material during expansion	+++	+	++