FTIR spectra of the minerals obtained from the mineralization assays under incubation of TNAP-proteoliposomes composed of pure DMPC, DMPC:Chol 90:10, DMPC:SM 90:10 and DMPC:Chol:SM 80:10:10, mol %, in SCL buffer pH 7.5, at 37 °C, in the presence of a PS-CPLX nucleator. Mineralization was followed by the differences in the ratio between the areas of the internal reference band of the phospholipid (C=O) at 1730 cm−1 and the band corresponding to the asymmetrical stretching of the PO43- group at 1070 cm−1.