4NSI

Carboplatin binding to HEWL in 20% propanol, 20% PEG 4000 at pH5.6

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2W1Y	PDB ENTRY 2W1Y

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.6	298	20mg of HEWL (0.6mM) was dissolved in 1ml distilled water. 1.4mg of carboplatin (1.8mM) was added along with 75 l DMSO. 2 l of this was mixed with 2 l of resevoir solution 20% PEG 4000 at pH5.6, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
1.94	36.62

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 77.713	α = 90
b = 77.713	β = 90
c = 36.84	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	100	CCD	APEX II CCD		2013-07-31	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	2.3	33.31	53.6	0.295	7.5	7.8	9485	5086	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	2.3	2.65	100		0.505	1.5	7.2

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 2W1Y	2.3	33.31	2	4	9485	5086	270	99.93	0.224	0.22352	0.22025	0.28489	RANDOM	29.538

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]
-0.48			-0.48		0.96

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.089
r_dihedral_angle_4_deg	15.927
r_dihedral_angle_3_deg	14.072
r_dihedral_angle_1_deg	6.73
r_long_range_B_refined	5.116
r_long_range_B_other	5.113
r_scangle_other	3.168
r_mcangle_other	2.715
r_mcangle_it	2.711
r_mcbond_it	1.653
r_scbond_it	1.65
r_scbond_other	1.639
r_mcbond_other	1.637
r_angle_refined_deg	1.373
r_angle_other_deg	0.846
r_chiral_restr	0.076
r_bond_refined_d	0.01
r_gen_planes_refined	0.004
r_bond_other_d	0.002
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_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1001
Nucleic Acid Atoms
Solvent Atoms	37
Heterogen Atoms	31

Software

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