1A8O | pdb_00001a8o

HIV CAPSID C-TERMINAL DOMAIN

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8	277	CRYSTALS OF CA(151-231) WERE GROWN AT 4C IN 4 MICROLITER SITTING DROPS CONTAINING A 1:1 MIXTURE OF PROTEIN SOLUTION (2.1 MM CA(151-231) IN 10MM TRIS (PH 8.0) AND 2 MM 2-MERCAPTOETHANOL) AND RESERVOIR SOLUTION (2.0 M AMMONIUM SULFATE), vapor diffusion - sitting drop, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.21	43.8

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 41.98	α = 90
b = 41.98	β = 90
c = 88.92	γ = 90

Symmetry
Space Group	P 43 21 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	IMAGE PLATE	MARRESEARCH	COLLIMATOR	1996-12-17	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL1-5		SSRL	BL1-5

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym I (Observed)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	1.7	25	99.6	0.036	15			9307		-2	21.1

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.7	1.73	98.6		0.232	5

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MULTI-WAVELENGTH ANOMALOUS DISPERSION	THROUGHOUT	1.7	25	-2	9254	969	99.5	0.215	0.215	0.2166	0.253	0.2496	RANDOM	22.6

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]
1.85			1.85		-3.69

RMS Deviations
Key	Refinement Restraint Deviation
x_dihedral_angle_d	20.4
x_scangle_it	3.92
x_scbond_it	2.41
x_mcangle_it	2.12
x_mcbond_it	1.31
x_angle_deg	1.1
x_improper_angle_d	1.01
x_bond_d	0.005
x_bond_d_na
x_bond_d_prot
x_angle_d
x_angle_d_na
x_angle_d_prot
x_angle_deg_na
x_angle_deg_prot
x_dihedral_angle_d_na
x_dihedral_angle_d_prot
x_improper_angle_d_na
x_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	556
Nucleic Acid Atoms
Solvent Atoms	88
Heterogen Atoms

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
X-PLOR	model building
X-PLOR	refinement
X-PLOR	phasing