1K7K | pdb_00001k7k

crystal structure of RdgB- inosine triphosphate pyrophosphatase from E. coli

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	5.8		PEG4k, Am. Acetate, Na-Citrate, pH 5.8, VAPOR DIFFUSION

Crystal Properties
Matthews coefficient	Solvent content
2.57	52.18

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 78.18	α = 90
b = 78.18	β = 90
c = 80.4	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	CCD	CUSTOM-MADE	Double-crystal monochromator, mirror	2001-08-21	M	MAD
2	1	x-ray	100	CCD	CUSTOM-MADE	Double-crystal monochromator, mirror	2001-09-10	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID	0.97937, 0.97918	APS	19-ID
2	SYNCHROTRON	APS BEAMLINE 19-ID	1.03321	APS	19-ID

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	1.45	60	99.3	0.06		8.8	40104	40104

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.45	1.5	93.8

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-Free (Depositor)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MAD	THROUGHOUT	1.5	55.09	35524	1875	92.68	0.21261	0.21135	0.23751	RANDOM	16.815

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]
-0.74			-0.74		1.47

RMS Deviations
Key	Refinement Restraint Deviation
p_scangle_it	2.895
p_scbond_it	2.125
p_mcangle_it	1.176
p_mcbond_it	0.767

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1701
Nucleic Acid Atoms
Solvent Atoms	255
Heterogen Atoms

Software

Software
Software Name	Purpose
CNS	refinement
REFMAC	refinement
d*TREK	data reduction
HKL-2000	data reduction
HKL-2000	data scaling
CNS	phasing