1ZZI

Crystal Structure Analysis of the third KH domain of hnRNP K in complex with ssDNA

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.5	294	PEG 4000, TRIS HCl, MAGNESIUM CHLORIDE, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 294K

Crystal Properties
Matthews coefficient	Solvent content
2	37.3

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 52.59	α = 90
b = 52.59	β = 90
c = 104.891	γ = 120

Symmetry
Space Group	P 31 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	CCD	ADSC QUANTUM 4		2002-09-02	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-4	0.94	ESRF	ID14-4

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	1.8	34.3	98	0.062	23.1	6.9	15859	15859

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	1.8	1.9	87.6		0.41	3.9	6.1

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	1.8	20	15825	15030	795	97.91	0.19685	0.19685	0.19458	0.24041	RANDOM	36.821

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]
0.88	0.44		0.88		-1.32

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.096
r_dihedral_angle_4_deg	24.933
r_dihedral_angle_3_deg	16.098
r_dihedral_angle_1_deg	5.866
r_scangle_it	3.793
r_scbond_it	2.768
r_angle_refined_deg	1.894
r_mcangle_it	1.742
r_mcbond_it	1.071
r_nbtor_refined	0.321
r_nbd_refined	0.229
r_symmetry_vdw_refined	0.22
r_symmetry_hbond_refined	0.203
r_xyhbond_nbd_refined	0.162
r_chiral_restr	0.111
r_bond_refined_d	0.018
r_gen_planes_refined	0.008
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1235
Nucleic Acid Atoms	209
Solvent Atoms	136
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
CCP4	data scaling
MOLREP	phasing