Experiment: 1V8Q

Crystal structure of ribosomal protein L27 from Thermus thermophilus HB8

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6	303	PEG 4000, Ammonium Acetate, tri-Sodium Citrate dihydrate, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 303K

Crystal Properties
Matthews coefficient	Solvent content
2.15	42.78

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 48.543	α = 90
b = 48.543	β = 90
c = 139.12	γ = 90

Symmetry
Space Group	P 43

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	MACSCIENCE		2002-02-25	M	SINGLE WAVELENGTH
2	1	x-ray	100	IMAGE PLATE	RIGAKU		2002-12-13	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SPRING-8 BEAMLINE BL44B2	0.90	SPring-8	BL44B2
2	SYNCHROTRON	SPRING-8 BEAMLINE BL26B1	0.96000, 0.97854, 0.97934, 0.98454	SPring-8	BL26B1

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
1,2	2.8	45.83	99.7	0.074	27.8	7.5		7947	-3		48.7

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)
	2.8	2.9	97.3		0.43	3.6	6.4	766

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	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	MAD	THROUGHOUT	2.8	45.83	7520	802	94.6	0.197	0.197	0.1949	0.236	0.2331	RANDOM	58.9

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]
16.44			16.44		-32.88

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	25.2
c_angle_deg	1
c_improper_angle_d	0.7
c_bond_d	0.009

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2116
Nucleic Acid Atoms
Solvent Atoms	18
Heterogen Atoms	8

Software

Software
Software Name	Purpose
CNS	refinement
HKL-2000	data reduction
SCALEPACK	data scaling
SOLVE	phasing