3K7Y | pdb_00003k7y

Aspartate Aminotransferase of Plasmodium falciparum

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1Q7W

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7	293	2.0 M Ammonium Sulfate, 0.1 M Bis-Tris/HCl, pH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.5	50.78

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 100.838	α = 90
b = 100.838	β = 90
c = 240.367	γ = 120

Symmetry
Space Group	H 3 2

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 210r		2008-04-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID23-2	0.8726	ESRF	ID23-2

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	2.8	82.08	97.5	0.097	12.8	5.2	11894	11597

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)
	2.8	3.08	99.5		0.487	3.1	5.3	1854

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	1q7w	2.8	82.08	11602	11040	562	97.48	0.21806	0.21806	0.21445	0.2133	0.29225	0.2916	RANDOM	77.365

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]
1.6	0.8		1.6		-2.41

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	39.454
r_dihedral_angle_3_deg	21.923
r_dihedral_angle_4_deg	16.989
r_dihedral_angle_1_deg	6.252
r_scangle_it	1.917
r_angle_refined_deg	1.434
r_mcangle_it	1.122
r_scbond_it	1.109
r_mcbond_it	0.602
r_chiral_restr	0.106
r_bond_refined_d	0.011
r_gen_planes_refined	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3311
Nucleic Acid Atoms
Solvent Atoms	9
Heterogen Atoms	20

Software

Software
Software Name	Purpose
DNA	data collection
BALBES	phasing
REFMAC	refinement
XDS	data reduction
SCALA	data scaling