4GCE

Room temperature X-ray diffraction study of a 6-fold molar excess of a cisplatin/carboplatin mixture binding to HEWL, Dataset 3

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		4.7	277	49 mg HEWL (3.2 mM), 3 mg cisplatin (10 mM), 3.7 mg carboplatin (10 mM) in 0.04 M sodium acetate buffer (462.5 uL) + 10% sodium chloride precipitant (462.5 uL) + 1 mM DMSO (75 uL), pH 4.7, BATCH, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.09	41.22

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 79.863	α = 90
b = 79.863	β = 90
c = 37.802	γ = 90

Symmetry
Space Group	P 43 21 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	300	CCD	APEX II CCD		2012-05-25	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	BRUKER AXS MICROSTAR-H	1.5418

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	2.9	56.47	99.8	0.38	8.1	23.2	2820	2816	4	2

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	2.9	2.97	100		0.627	3.5	25.7

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (I)	Cut-off Sigma (F)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 2W1Y	2.9	56.47	2	4	2820	2816	138	99.76	0.17673	0.17378	0.23407	RANDOM	24.617

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]
-0.8			-0.8		1.61

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	42.162
r_dihedral_angle_4_deg	18.313
r_dihedral_angle_3_deg	14.764
r_dihedral_angle_1_deg	6.144
r_angle_refined_deg	1.311
r_angle_other_deg	0.874
r_chiral_restr	0.071
r_bond_refined_d	0.01
r_gen_planes_refined	0.004
r_bond_other_d	0.001

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	42.162
r_dihedral_angle_4_deg	18.313
r_dihedral_angle_3_deg	14.764
r_dihedral_angle_1_deg	6.144
r_angle_refined_deg	1.311
r_angle_other_deg	0.874
r_chiral_restr	0.071
r_bond_refined_d	0.01
r_gen_planes_refined	0.004
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1001
Nucleic Acid Atoms
Solvent Atoms	5
Heterogen Atoms	10

Software

Software
Software Name	Purpose
APEX	data collection
PHASER	phasing
REFMAC	refinement
APEX	data reduction

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.