259 Phosphatidylserine decarboxylase alpha chain Phosphatidylserine decarboxylase proenzyme psd MNRLYPHPIIAREGWPIIGGGLALSLLVSMCCGWWSLPFWVFTVFALQFFRDPAREIPQNPEAVLSPVDGRIVVVERARDPYRDVDALKISIFMNVFNVHSQKSPADCTVTKVVYNKGKFVNADLDKASTENERNAVLATTASGREITFVQVAGLVARRILCYTQAGAKLSRGERYGFIRFGSRVDMYLPVDAQAQVAIGDKVTGVKTVLARLPLTDSQADPVSQAASVETAANPSAEQQQIEAAAAKIQAAVQDVLKD PSD_NEIGO Phosphatidylserine decarboxylase beta chain