3G4Q

Ligand migration and cavities within scapharca dimeric hemoglobin: wild type with co bound to heme and chloroform bound to the XE4 cavity


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 3SDHPDB ENTRY 3SDH

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1MICROBATCH7.52961.5-2.5M PHOSPHATE BUFFER, PH 7.50, SMALL TUBES, TEMPERATURE 298K, Microbatch, temperature 296K
Crystal Properties
Matthews coefficientSolvent content
2.1843.5

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 93.18α = 90
b = 43.89β = 121.93
c = 83.49γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray295IMAGE PLATEMAR scanner 345 mm plateOSMIC MIRRORS2004-05-14MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU1.54

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (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
11.610090.50.0670.06717.14.1380323441922.1
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
1.61.6585.80.2150.2156.1

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB ENTRY 3SDH1.638.3838032343281703900.2010.2010.219RANDOM17
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]
0.770.212.68-3.45
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d18.3
c_angle_deg1.1
c_improper_angle_d1.08
c_bond_d0.006
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2232
Nucleic Acid Atoms
Solvent Atoms179
Heterogen Atoms102

Software

Software
Software NamePurpose
MAR345dtbdata collection
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
CNSphasing