Experiment: 3KEM

Crystal structure of IspH:IPP complex

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3DNF

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.5		0.1M Bis-Tris, 0.2M Li2SO4, 25% PEG 3350, pH 6.5, VAPOR DIFFUSION, SITTING DROP

Crystal Properties
Matthews coefficient	Solvent content
2.28	45.98

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 112.475	α = 90
b = 80.645	β = 94.68
c = 70.157	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	Bruker Platinum 135		2009-09-05	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	Cu FINE FOCUS	1.5418

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	65	100	0.048	17.6	12		39891	3	3	7.8

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	2.1	100		0.243	4	4.8

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (I)	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)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	3DNF	2	9.99	2	39647	1980	94.4	0.226	0.226	0.2226	0.275	0.2195	RANDOM	20.1

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]
5.84		-0.14	-4.16		-1.69

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	22.7
c_scangle_it	2.79
c_scbond_it	2.02
c_mcangle_it	1.86
c_angle_deg	1.3
c_improper_angle_d	1.23
c_mcbond_it	1.2
c_bond_d	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4773
Nucleic Acid Atoms
Solvent Atoms	454
Heterogen Atoms	42

Software

Software
Software Name	Purpose
PROTEUM2	data collection
CNS	refinement
PROTEUM2	data reduction
PROTEUM2	data scaling
CNS	phasing