1GKR

L-Hydantoinase (Dihydropyrimidinase) from Arthrobacter aurescens

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1GKP	HOMOLOGY MODEL FROM PDB ENTRY 1GKP

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		8.5		16-18% (W/V) PEG 8000, 250 MM LITHIUM SULPHATE, 100 MM MES/TRIS PH 8.5

Crystal Properties
Matthews coefficient	Solvent content
1.2	63

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 111.5	α = 90
b = 74.3	β = 106.57
c = 146.9	γ = 90

Symmetry
Space Group	P 1 21 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	283	AREA DETECTOR	SIEMENS		1996-03-20	M	SINGLE WAVELENGTH

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

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	2.6	20	86.6	0.091	8.5	2		61763

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	2.6	2.74	41.2		0.148	2.5	1.3

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	HOMOLOGY MODEL FROM PDB ENTRY 1GKP	2.6	30	61515	3106	86.3	0.224	0.224	0.244	RANDOM	23.6

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]
11.032		-0.884	-12.42		1.388

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	24.8
c_angle_deg	1.66
c_improper_angle_d	1.1
c_bond_d	0.009
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot
c_mcbond_it
c_mcangle_it
c_scbond_it
c_scangle_it

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	13680
Nucleic Acid Atoms
Solvent Atoms	508
Heterogen Atoms	8

Software

Software
Software Name	Purpose
CNS	refinement
XENGEN	data reduction
CNS	phasing