4KW6

Crystal structure of Peroxiredoxin-1 (C-terminal truncation mutant) from the human hookworm Ancylostoma ceylanicum bound to conoidin A

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	4FH8	PDB ENTRY 4FH8

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6	285	0.1 M MES, 1-2% PEG3350, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 285K

Crystal Properties
Matthews coefficient	Solvent content
3.37	63.55

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 141.554	α = 90
b = 141.657	β = 98.5
c = 68.855	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	PIXEL	DECTRIS PILATUS 6M		2013-01-18	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X25	1.100	NSLS	X25

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	3	49.84	74.28	0.079			25771	18994

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	3	3.12	16.2		0.323	1.84	1.4	484

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	PDB ENTRY 4FH8	3	49.84	26458	18994	1028	74.28	0.2	0.18661	0.18588	0.20002	RANDOM	92.07

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]
-6.25		-9.35	2.45		4.98

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.635
r_sphericity_free	26.09
r_sphericity_bonded	16.602
r_dihedral_angle_3_deg	15.827
r_dihedral_angle_4_deg	7.128
r_dihedral_angle_1_deg	4.989
r_rigid_bond_restr	3.699
r_angle_refined_deg	0.957
r_chiral_restr	0.071
r_bond_refined_d	0.005

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.635
r_sphericity_free	26.09
r_sphericity_bonded	16.602
r_dihedral_angle_3_deg	15.827
r_dihedral_angle_4_deg	7.128
r_dihedral_angle_1_deg	4.989
r_rigid_bond_restr	3.699
r_angle_refined_deg	0.957
r_chiral_restr	0.071
r_bond_refined_d	0.005
r_gen_planes_refined	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6761
Nucleic Acid Atoms
Solvent Atoms	15
Heterogen Atoms	27

Software

Software
Software Name	Purpose
HKL-2000	data collection
PHASER	phasing
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.