3G21

Crystal structure of the C-terminal domain of the Rous Sarcoma Virus capsid protein: Low pH

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3G1G	PDB ENTRY 3G1G

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	4.3	291	0.20M Succinic acid/KOH, pH4.3, 13-18% PEG8000, 0.75M Magnesium Nitrate, VAPOR DIFFUSION, SITTING DROP, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
2.01	38.75

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 32.179	α = 90
b = 32.179	β = 90
c = 113.875	γ = 120

Symmetry
Space Group	P 32 2 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	MARMOSAIC 325 mm CCD		2008-04-28	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL9-2	0.85503	SSRL	BL9-2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	0.9	27	89	0.058	36.2	11.1	46299	46299

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	0.9	0.93	30		0.167	7.2	1.8	1546

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R	PDB ENTRY 3G1G	0.9	27	43916	43916	2306	84.6	0.124	0.124	0.142	RANDOM

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 Method	Refinement High Resolution	Refinement Low Resolution
42	583.31	669.09

RMS Deviations
Key	Refinement Restraint Deviation
s_anti_bump_dis_restr	0.164
s_zero_chiral_vol	0.114
s_non_zero_chiral_vol	0.112
s_approx_iso_adps	0.078
s_angle_d	0.035
s_similar_adp_cmpnt	0.031
s_from_restr_planes	0.0252
s_bond_d	0.018
s_rigid_bond_adp_cmpnt	0.007
s_similar_dist

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	707
Nucleic Acid Atoms
Solvent Atoms	101
Heterogen Atoms	4

Software

Software
Software Name	Purpose
Blu-Ice	data collection
SHELX	model building
SHELXL-97	refinement
HKL-2000	data reduction
HKL-2000	data scaling
SHELX	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.