Experiment: 4IOD

Preliminary structural investigations of a malarial protein secretion system.

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1KHY	PDB ENTRY 1KHY AND 1QVR
experimental model	PDB	1QVR	PDB ENTRY 1KHY AND 1QVR

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		5.5	273	2.2M AMMONIUM SULFATE, pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 273K

Crystal Properties
Matthews coefficient	Solvent content
2.76	55.48

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 89.18	α = 90
b = 141.01	β = 90
c = 91.4	γ = 90

Symmetry
Space Group	C 2 2 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	77	CCD	ADSC QUANTUM 315		2012-06-06	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 24-ID-E		APS	24-ID-E

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	1.8	45	99.7	0.071	21.6	9.9		53488		1	22

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (All)	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 1KHY AND 1QVR	1.8	44.59	1.99	53488	53476	5334	99.7	0.175	0.17	0.1668	0.212	0.2069

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]
-0.1112			1.3591		-1.2479

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	14.95
f_angle_d	1.231
f_chiral_restr	0.078
f_bond_d	0.014
f_plane_restr	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3407
Nucleic Acid Atoms
Solvent Atoms	371
Heterogen Atoms	15

Software

Software
Software Name	Purpose
CONSOLE	data collection
PHASER	phasing
PHENIX	refinement
XDS	data reduction
XDS	data scaling