Table 2

X-ray diffraction data and refinement statistics
A. X-ray Data
X-ray Source SSRL
Beam line 7–1
Space Group I432
Cell Dimensions
a = b = c (Å) 181.0
Asymmetric Unit 1 monomer
Resolution Range (Å) 27.9–1.55
(1.63–1.55)
Rmerge 0.067
(0.767)*
Rp.i.m.* 0.013
(0.25)
mean (I/σ(I)) 29.4
(3.8)
Multiplicity 24.7
(17.8)
No. Unique Reflections 72,486
(10,350)
Data Completeness (%) 99.9
(99.1)
B. Refinement
Rwork 0.1267
Rfree 0.1552
Bonds (Å) 0.008
Angles (˚) 1.562
No. Amino Acids 391
No. Glycan monomers 15
No. D-glucose molecules 4
No. Waters 458

(Statistics for the highest resolution shell are in parentheses).

*Rmerge is high in the highest resolution shell due to the high multiplicity of the data. The Rp.i.m. is independent of the data multiplicity and shows that the data in the highest shell have a reasonable discrepancy of 25%. Rp.i.m.is the precision indicating Rmerge[27].

Venkatramani et al.

Venkatramani et al. BMC Structural Biology 2012 12:7   doi:10.1186/1472-6807-12-7

Open Data