3D1K

R/T intermediate quaternary structure of an antarctic fish hemoglobin in an alpha(CO)-beta(pentacoordinate) state


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1T1NPDB ENTRY 1T1N

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1LIQUID DIFFUSION7.6298Crysatls grew in a week by using a protein concentration of 6mg/ml and 14% w/v MPEG5000 in a 50mM Tris HCl buffer at ph 7.6, LIQUID DIFFUSION, temperature 298K
Crystal Properties
Matthews coefficientSolvent content
3.3363.04

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 88.458α = 90
b = 87.664β = 99.16
c = 55.502γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDmirrors2000-11-04MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONESRF BEAMLINE ID14-11.00ESRFID14-1

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (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
11.2530114368

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 REPLACEMENTtroughoutPDB ENTRY 1T1N1.253011436811436899.60.1670.1670.202RANDOM
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
1-3 distances0.038
1-2 distances0.019
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2270
Nucleic Acid Atoms
Solvent Atoms297
Heterogen Atoms91

Software

Software
Software NamePurpose
HKL-2000data collection
AMoREphasing
SHELXL-97refinement
HKL-2000data reduction
HKL-2000data scaling