1ZY4

Crystal Structure of eIF2alpha Protein Kinase GCN2: R794G Hyperactivating Mutant in Apo Form.

X-RAY DIFFRACTION

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Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	9.5	295	PEG 6000, CHES, pH 9.5, VAPOR DIFFUSION, SITTING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
2.2	43.97

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 52.833	α = 90
b = 79.257	β = 90
c = 146.863	γ = 90

Symmetry
Space Group	P 21 21 21

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	MARRESEARCH		2004-08-19	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 31-ID	0.97931	APS	31-ID

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	1.95	50	99.1	0.068	22.4	9.9	45568	45176			25.4

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	1.95	2	97.6		0.66	2.8

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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1ZYC	1.95	37.72	45568	45110	1407	98.9	0.224	0.224	0.224	0.252	SHELLS	48.6

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]
4.68			-5.01		0.33

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	22.1
c_scangle_it	5.97
c_scbond_it	4.45
c_mcangle_it	4.3
c_mcbond_it	3.09
c_angle_deg	1.3
c_improper_angle_d	0.77
c_bond_d	0.008
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

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4293
Nucleic Acid Atoms
Solvent Atoms	234
Heterogen Atoms	12

Software

Software
Software Name	Purpose
CNX	refinement
DENZO	data reduction
SCALEPACK	data scaling
MOLREP	phasing
CCP4	phasing