Sulfatide Preserves Insulin Crystals Not by Being Integrated in the Lattice but by Stabilizing Their Surface

Table 1

X-ray diffraction data for insulin crystalized in the presence of sulfatide.

PDB 4XC4
Resolution range (Å)	30–1.5 (1.553–1.499)
Space group	R3:H
Unit cell	,  , and  ; ,  , and
Total reflections (unique)	11,654 (1,124)
Completeness (%)	86.62 (82.71)
Mean /sigma()	18.52 (2.60)
Wilson -factor	20.27
R-work	0.2180 (0.3020)
R-free	0.2540 (0.3595)
Number of nonhydrogen atoms	870
Macromolecules	865
Residues	101
RMS (bonds)	0.008
RMS (angles)	1.06
Ramachandran favored (%)	95
Ramachandran allowed (%)	4.01
Ramachandran outliers (%)	0.99
-factor	29.00
Macromolecules	29.00
Ligands	33.50