1OBW | pdb_00001obw

STRUCTURE OF INORGANIC PYROPHOSPHATASE

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	Other		REFINED STRUCTURE OF APO-FORM OF THIS ENZYME AT 2.2A. (HARUTYUNYAN ET AL., 1996, CRYSTALLOGRAPHIA(RUS), V.14 ,PP84-96.

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7.5		pH 7.5

Crystal Properties
Matthews coefficient	Solvent content
2.34	40

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 110.3	α = 90
b = 110.3	β = 90
c = 78.2	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	293	IMAGE PLATE	MARRESEARCH		1996-05-20	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1

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	1.9	20	99.7	0.05	14	6		41190		3

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	1.9	1.95	99.2		0.244	4	3

Refinement

Statistics
Diffraction ID	Structure Solution 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-Free (Depositor)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPL.	REFINED STRUCTURE OF APO-FORM OF THIS ENZYME AT 2.2A. (HARUTYUNYAN ET AL., 1996, CRYSTALLOGRAPHIA(RUS), V.14 ,PP84-96.	1.9	15	1	360600			0.176	0.22	34

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
p_transverse_tor	22.5
p_staggered_tor	19.4
p_scangle_it	5.37
p_scbond_it	5.166
p_mcangle_it	4.664
p_mcbond_it	1.927
p_multtor_nbd	0.255
p_xyhbond_nbd	0.187
p_singtor_nbd	0.173
p_chiral_restr	0.142
p_planar_d	0.034
p_angle_d	0.031
p_bond_d	0.014
p_angle_deg
p_hb_or_metal_coord
p_plane_restr
p_xhyhbond_nbd
p_planar_tor
p_orthonormal_tor
p_special_tor

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4137
Nucleic Acid Atoms
Solvent Atoms	250
Heterogen Atoms	7

Software

Software
Software Name	Purpose
AMoRE	phasing
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling