3K2C

Crystal structure of peptidyl-prolyl cis-trans isomerase from Encephalitozoon cuniculi at 1.9 A resolution

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2BIU	PDB entry 2BIU

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8.5	290	HAMPTON RESEARCH CRYSTAL SCREEN CONDITION B5: 200mM Li sulfate, 100mM Tris-HCl pH 8.5, 30% PEG 4000; Protein at 49.8 mg/mL, VAPOR DIFFUSION, SITTING DROP, temperature 290.0K

Crystal Properties
Matthews coefficient	Solvent content
2.09	41.28

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 38.81	α = 90.01
b = 73.86	β = 79.1
c = 63.59	γ = 90.02

Symmetry
Space Group	P 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	MARMOSAIC 225 mm CCD		2009-09-18	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	CLSI BEAMLINE 08ID-1	0.97351	CLSI	08ID-1

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	40	94.4	0.052	11.91	2	50563	47719		-3	26.23

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)
	1.95	2	94.7		0.276	3	2	50563

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 2BIU	1.95	40	47718	47718	2442	94.4	0.166	0.166	0.163	0.17	0.216	0.22	RANDOM	17.33

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]
-0.55	-0.11	1.3	1.21		-1.15

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.294
r_dihedral_angle_4_deg	18.306
r_dihedral_angle_3_deg	12.428
r_dihedral_angle_1_deg	6.754
r_scangle_it	4.221
r_scbond_it	2.571
r_mcangle_it	1.583
r_angle_refined_deg	1.515
r_mcbond_it	0.913
r_angle_other_deg	0.895
r_mcbond_other	0.251
r_chiral_restr	0.096
r_bond_refined_d	0.018
r_gen_planes_refined	0.007
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5298
Nucleic Acid Atoms
Solvent Atoms	438
Heterogen Atoms	42

Software

Software
Software Name	Purpose
MAR345	data collection
PHASER	phasing
REFMAC	refinement
XDS	data reduction
XSCALE	data scaling