Experiment: 1A34

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
in silico model	Other		MODIFIED STNV

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	liquid diffusion in microgravity	6.5		PROTEIN WAS FOUR TIMES RECRYSTALLIZED FROM BULK SOLUTION BY ADDITION AF AMMONIUM SULFATE TO 15% SATURATION. SPACE CRYSTALS WERE GROWN BY LIQUID-LIQUID DIFFUSION IN A MICROGRAVITY ENVIRONMENT OVER 12 DAYS ABOARD IML-I MISSION OF THE US SPACE SHUTTLE., pH 6.50, liquid diffusion in microgravity

Crystal Properties
Matthews coefficient	Solvent content
2.42	25

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 174.27	α = 90
b = 191.77	β = 90
c = 202.5	γ = 90

Symmetry
Space Group	I 2 2 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	290	AREA DETECTOR	SDMS	NONE	1992-02-28	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU200

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)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	1.81	30	89	0.091	0.091		8.2		271689		2	8.7

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	1.81	1.94	63.9		0.199		2.1

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MIR, MOLECULAR REPLACEMENT	THROUGHOUT	MODIFIED STNV	1.81	30	4	215809	3277	71.8	0.179	0.1747	0.184	0.1751	RANDOM	14.6

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]

RMS Deviations
Key	Refinement Restraint Deviation
x_dihedral_angle_d	17.77
x_scangle_it	4.47
x_mcangle_it	3.34
x_scbond_it	2.78
x_mcbond_it	1.85
x_angle_deg	1.8
x_improper_angle_d	1.39
x_bond_d	0.009
x_bond_d_na
x_bond_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1137
Nucleic Acid Atoms	422
Solvent Atoms	168
Heterogen Atoms	18

Software

Software
Software Name	Purpose
X-PLOR	refinement
BRICOGNE'S	model building
INTERPOLATE	model building
TNT	refinement
HEAVY	model building
SDMS	data reduction
SDMS	data scaling
HEAVY	phasing
BRICOGNE'S	phasing
INTERPOLATE	phasing
TNT	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.