Experiment: 3A0J

Crystal structure of cold shock protein 1 from Thermus thermophilus HB8

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1HZA	PDB ENTRY 1HZA

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.2	293	32% PEG 1500, 0.1M Tris HCl, pH 8.2, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
1.777856	30.815542

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 28.215	α = 67.37
b = 29.861	β = 81.44
c = 38.264	γ = 79.49

Symmetry
Space Group	P 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	90	CCD	ADSC QUANTUM 210		2008-07-23	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SPRING-8 BEAMLINE BL44B2	1.00	SPring-8	BL44B2

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	1.65	50	95.2	0.031	46.9	3.9	12948	12948		-3	14.7

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)
	1.65	1.71	87.4		0.095	13.9	3.7	1166

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (I)	Number Reflections (All)	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	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1HZA	1.65	21.56	-3	12948	12817	1326	94.3	0.165	0.165	0.1642	0.174	0.1734	RANDOM	16.9

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]
-0.54	2.27	0.74	3.13	1.26	-2.58

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	26.8
c_improper_angle_d	2.17
c_angle_deg	2.1
c_bond_d	0.028

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1158
Nucleic Acid Atoms
Solvent Atoms	185
Heterogen Atoms

Software

Software
Software Name	Purpose
CNS	refinement
BSS	data collection
DENZO	data reduction
SCALEPACK	data scaling
MOLREP	phasing