X-ray radiation damage series on Thaumatin at 277K, multi-conformer model, dataset 3

2-Gaussian fit: Grosse-Kunstleve RW, Sauter NK, Adams PD: Newsletter of the IUCr Commission on Crystallographic Computing 2004, 3, 22-31.

Evaluating the impact of X-ray damage on conformational heterogeneity in room-temperature (277 K) and cryo-cooled protein crystals.

ATFEIVNRCSYTVWAAASKGDAALDAGGRQLNSGESWTINVEPGTKGGKIWARTDCYFDDSGSGICKTGDCGGLLRCKRF
GRPPTTLAEFSLNQYGKDYIDISNIKGFNVPMDFSPTTRGCRGVRCAADIVGQCPAKLKAPGGGCNDACTVFQTSEYCCT
TGKCGPTEYSRFFKRLCPDAFSYVLDKPTTVTCPGSSNYRVTFCPTA

24% Na K Tartrate (w/v), 15% ethylene glycol (v/v), and 0.1 M BisTris Propane

National Science Foundation (NSF, United States)

Thaumatin was purchased from Sigma and is a mixture of thaumatin I and thaumatin II and both are most likely present in the crystal. While thaumatin I (P02883) has an N at position 68 (precursor numbering), thaumatin II (P02884) has a K at the same position. Modeling either N or K is justified, in this case K explains the electron density better (better fit to map and better statistics).

radiation damage, conformational heterogeneity, PLANT PROTEIN

ATFEIVNRCSYTVWAAASKGDAALDAGGRQLNSGESWTINVEPGTNGGKIWARTDCYFDDSGSGICKTGDCGGLLRCKRF
GRPPTTLAEFSLNQYGKDYIDISNIKGFNVPMDFSPTTRGCRGVRCAADIVGQCPAKLKAPGGGCNDACTVFQTSEYCCT
TGKCGPTEYSRFFKRLCPDAFSYVLDKPTTVTCPGSSNYRVTFCPTA