1QBZ

THE CRYSTAL STRUCTURE OF THE SIV GP41 ECTODOMAIN AT 1.47 A


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1MOFPOLY ALANINE MODEL (RESIDUES 46-74) OF MMLV TRANSMEMBRANE TRIMERIC CORE (1MOF)

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
14.2514-25% MPD (2-METHYL-2,4- PENTANEDIOL) 140-220 MM NACL, 20-40 MM SODIUM ACETATE, pH 4.25
Crystal Properties
Matthews coefficientSolvent content
1.7830.8

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 91.124α = 90
b = 47.206β = 100.83
c = 77.465γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray93IMAGE PLATEMARRESEARCH1997-11-22MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONNSLS BEAMLINE X9BNSLSX9B

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge 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
11.471589.90.06414.88.3495530.5
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.471.570.90.193.62.3

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 DIFFRACTIONMIR AND MRFREE RPOLY ALANINE MODEL (RESIDUES 46-74) OF MMLV TRANSMEMBRANE TRIMERIC CORE (1MOF)1.471549533246250.1550.1520.218THIN SHELL
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]
Coordinate Error
Structure Solution MethodRefinement High ResolutionRefinement Low Resolution
3726093046
RMS Deviations
KeyRefinement Restraint Deviation
s_zero_chiral_vol0.104
s_non_zero_chiral_vol0.097
s_approx_iso_adps0.076
s_similar_adp_cmpnt0.048
s_angle_d0.03
s_from_restr_planes0.021
s_anti_bump_dis_restr0.017
s_bond_d0.011
s_rigid_bond_adp_cmpnt0.003
s_similar_dist
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2768
Nucleic Acid Atoms
Solvent Atoms263
Heterogen Atoms21

Software

Software
Software NamePurpose
MLPHAREphasing
SHELXL-97refinement
DENZOdata reduction
SCALEPACKdata scaling
PHASESphasing
DMphasing
AMoREphasing