4GCD | pdb_00004gcd

Room temperature X-ray diffraction study of a 6-fold molar excess of a cisplatin/carboplatin mixture binding to HEWL, Dataset 2

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		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	2.8	35.74	100	0.289	10.8	23.6	3140	3141	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	2.8	2.87	100		0.575	4.5	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 (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 2W1Y	2.8	35.74	2	4	3140	3141	152	99.85	0.17845	0.17535	0.1847	0.24007	0.2434	RANDOM	34.654

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]
-0.19			-0.19		0.38

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.475
r_dihedral_angle_4_deg	22.312
r_dihedral_angle_3_deg	17.737
r_dihedral_angle_1_deg	6.996
r_angle_refined_deg	1.585
r_angle_other_deg	0.846
r_chiral_restr	0.079
r_bond_refined_d	0.011
r_gen_planes_refined	0.005
r_bond_other_d	0.002
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1001
Nucleic Acid Atoms
Solvent Atoms	6
Heterogen Atoms	18

Software

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