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. Author manuscript; available in PMC: 2012 May 2.
Published in final edited form as: Chembiochem. 2011 Apr 5;12(7):1084–1096. doi: 10.1002/cbic.201000598

Table I.

Data collection and refinement statistics for the crystal structure of the HP1a CSD. The Ramachandran plot was calculated using MOLPROBITY.

Data collection
Beamline 19BM (APS)
Wavelength (Å) 0.9792
Unit cell (Å) a= 44.8, b= 56.6, c=67.3
Space group P212121
Solvent content (%) 55
Number of protein chains in asymmetric unit 2
Resolution range (Å) 50.0–2.3
Highest resolution shell (Å) 2.30–2.34
Unique reflections 8023(397)
Redundancy 7.1(7.3)
Completeness(%) 99.4(98.8)
Raverage.(%) 4.7(47.5)
Average I/σ (I) 37.2(4.3)
Refinement
R(%) 19.9
Rfree (%) 24.6
Mean B value (Å2) 62.5
B from Wilson plot (Å2) 45.7
RMS deviation bond lengths (Å) 0.019
RMS deviation bond angles (°) 1.4
Number of amino acid residues 116
Number of non-H atoms 984
Number of water molecules 37
Ramachandran plot
Most favored regions (%) 99.1
Additional allowed regions (%) 0.9