. 2012 Dec 21;7(12):e52308. doi: 10.1371/journal.pone.0052308

Table 2. Conformational change of recombinant honeybee silk materials as a function of stabilization treatment.

Treatment	Conformational Change (%)	Description
60% MeOH 48 h	26	Major loss of coiled coil structure (1653 cm⁻¹) off-set by a major gain in ß-sheet structure (1669 cm⁻¹). There is also a minor loss in ß-turn structure observed at 1688 cm⁻¹
70% MeOH 48 h	24
80% MeOH 48 h	19
90% MeOH 48 h	14
100% MeOH 48 h	11
160°C 60 min	6
180°C 60 min	6	Loss of coiled coil structure (1653 cm⁻¹) coupled with gain in ß-turn structure (1688 cm⁻¹)
190°C 10 min	5
190°C 30 min	10	Greater loss of coiled coil structure (1653 cm⁻¹) coupled with gains in ß-sheet and turn structures at 1669 and 1688 cm⁻¹
190°C 60 min	12
190°C 120 min	10	No significant further loss of coiled coil structure (1653 cm⁻¹) but no apparent gain in ß-sheet structure at 1669 cm⁻¹