1B67

CRYSTAL STRUCTURE OF THE HISTONE HMFA FROM METHANOTHERMUS FERVIDUS


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
16.5CRYSTALLISATION IN HANGING DROP RESERVOIR: 2.6 M (NH4)2SO4 PROTEIN WAS MIXED 1 TO 1 WITH RESERVOIR SOLUTION, pH 6.5
Crystal Properties
Matthews coefficientSolvent content
2.0339.28

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 33.72α = 90
b = 52.58β = 90
c = 67.5γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray293IMAGE PLATEMARRESEARCH1995-09-15MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONEMBL/DESY, HAMBURG BEAMLINE X31EMBL/DESY, HAMBURGX31

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Sym I (Observed)Net I Over Average Sigma (I)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
11.481199.15.72.93.877006
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
1.481.5310025.62.93.4

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (All)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTNMR MODEL OF HMFB1.4811204001044990.1930.1880.266RANDOM
Temperature Factor Modeling
Anisotropic B[1][1]Anisotropic B[1][2]Anisotropic B[1][3]Anisotropic B[2][2]Anisotropic B[2][3]Anisotropic B[3][3]
RMS Deviations
KeyRefinement Restraint Deviation
s_from_restr_planes0.054
s_angle_d0.028
s_bond_d0.01
s_similar_dist
s_zero_chiral_vol
s_non_zero_chiral_vol
s_anti_bump_dis_restr
s_rigid_bond_adp_cmpnt
s_similar_adp_cmpnt
s_approx_iso_adps
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1002
Nucleic Acid Atoms
Solvent Atoms77
Heterogen Atoms5

Software

Software
Software NamePurpose
AMoREphasing
SHELXL-97refinement
DENZOdata reduction
CCP4data scaling
SCALAdata scaling
CCP4phasing