. 2019 Mar 14;3:6. Originally published 2019 Jan 14. [Version 2] doi: 10.12688/gatesopenres.12899.2

Table 2. Spectroscopic proportions of the secondary structure ^a,
b for SMB in DP surfactant lipids.

System	% Conformation ^a
	α-Helix	Loop-Turn	β-Sheet	Disordered
DP-2L: DPPC:POPG-Na:SD-30:SP-B:NaCl (49:21:25:3:2 wt:wt)	46.88	26.01	15.75	11.36
DP-3L: DPPC:POPG-Na:POPC:SD-30:SP-B:NaCl (49:21:7:18:3:2 wt:wt)	45.94	25.64	11.47	16.95
DP-PA: DPPC:POPG-Na:PA:SD-30:SP-B:NaCl (49:21:5:20:3:2 wt:wt)	48.12	26.56	14.86	10.46

^aTabulated results are means from four closely-reproduced separate determinations for each condition and spectral type. Powder was solvated with D ₂O and dried onto the germanium.

FTIR sample crystal using a stream of dry nitrogen gas. The dried film was then hydrated with deuterated water vapor for one hour prior to spectral measurement.

^bSee Figure 2. ATR-FTIR spectra were estimated for proportions of the secondary structure for SMB in surfactant lipid films using self-deconvolution of the peptide amide I band (see Methods).

Table 2. Spectroscopic proportions of the secondary structure a, b for SMB in DP surfactant lipids.

Table 2. Spectroscopic proportions of the secondary structure ^a,
b for SMB in DP surfactant lipids.