Experiment: 2XBU

Saccharomyces cerevisiae hypoxanthine-guanine phosphoribosyltransferase in complex with GMP (monoclinic crystal form)

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2JKY	PDB ENTRY 2JKY

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5.6	293	0.2 M AMMONIUM ACETATE, 30% PEG 4000, 0.1 M TRI-SODIUM CITRATE, VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 293K, pH 5.6

Crystal Properties
Matthews coefficient	Solvent content
1.35	45.1

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 51.577	α = 90
b = 77.521	β = 95.13
c = 56.655	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	100	CCD	ADSC CCD	MIRRORS	2008-02-27	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID29		ESRF	ID29

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	1.8	28.21	96.6	0.06	15.3	4.3		39543			19.57

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	1.8	1.9	98.4		0.37	3	3.6

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-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	PDB ENTRY 2JKY	1.8	28.214	1.36	39543	1994	96.09	0.1689	0.1669	0.1651	0.2058	0.2021	25.6

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]
0.3246		0.1616	-0.0939		-0.2307

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	17.101
f_angle_d	0.92
f_chiral_restr	0.062
f_bond_d	0.004
f_plane_restr	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3208
Nucleic Acid Atoms
Solvent Atoms	475
Heterogen Atoms	57

Software

Software
Software Name	Purpose
PHENIX	refinement
MOSFLM	data reduction
SCALA	data scaling
MOLREP	phasing