Experiment: 4DU6

Crystal structure of GTP cyclohydrolase I from Yersinia pestis complexed with GTP

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1GTP	PDB entry 1GTP

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8.5	289	0.8M Lithium Chloride; 0.1M TRIS HCl pH 8.5; 8% (w/v) PEG 4000, VAPOR DIFFUSION, SITTING DROP, temperature 289K

Crystal Properties
Matthews coefficient	Solvent content
2.54	51.54

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 174.047	α = 90
b = 104.912	β = 96.89
c = 70.07	γ = 90

Symmetry
Space Group	C 1 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	100	CCD	ADSC QUANTUM 315r	mirrors	2010-10-31	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID	0.97937	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	2.106	50	97.1	0.062	10.7	4	70010	70010			37.55

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)
1	2.1	2.14	80.9		0.482	2.3	3	2881

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	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	MOLECULAR REPLACEMENT	THROUGHOUT	PDB entry 1GTP	2.106	43.198	69649	69649	3519	96.32	0.182	0.182	0.18	0.1787	0.225	0.2232	random	57.1

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]
-17.3027		-1.0167	-5.871		23.1737

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	18
f_angle_d	1.482
f_chiral_restr	0.101
f_bond_d	0.013
f_plane_restr	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	8535
Nucleic Acid Atoms
Solvent Atoms	182
Heterogen Atoms	236

Software

Software
Software Name	Purpose
HKL-3000	data collection
HKL-3000	phasing
MOLREP	phasing
PHENIX	refinement
HKL-3000	data reduction
HKL-3000	data scaling