1R6C

High resolution structure of ClpN

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	HANGING DROP		294	0.02M HEPES at pH 7.4 (protein solution) mixed 1:1 with 0.1M PIPES at pH 7.0, 35% (w/v) PEG 8000, 0.32M sodium citrate, HANGING DROP, temperature 294K

Crystal Properties
Matthews coefficient	Solvent content
1.88	34.69

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 36.04	α = 90
b = 51.99	β = 90
c = 65.133	γ = 90

Symmetry
Space Group	P 21 21 21

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	mirrors	2000-06-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X9B	0.98	NSLS	X9B

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym 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	2.15	50	0.88	0.026	0.026	51.1	5.5	6243	6243	-3	-3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.15	2.23	0.744		0.052	0.052	27.48	5	511

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-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MIR	THROUGHOUT	2.15	20	5979	5979	241	88.25	0.16748	0.24326	RANDOM	15.105

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]
-0.32			0.11		0.21

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_3_deg	14.302
r_scangle_it	9.5
r_scbond_it	6.446
r_mcangle_it	3.731
r_dihedral_angle_1_deg	2.226
r_mcbond_it	1.59
r_angle_refined_deg	0.759
r_symmetry_hbond_refined	0.242
r_symmetry_vdw_refined	0.241
r_nbd_refined	0.209
r_xyhbond_nbd_refined	0.205
r_chiral_restr	0.102
r_bond_refined_d	0.024
r_gen_planes_refined	0.006
r_bond_other_d
r_angle_other_deg
r_dihedral_angle_2_deg
r_dihedral_angle_4_deg
r_gen_planes_other
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1126
Nucleic Acid Atoms
Solvent Atoms	70
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
SCALEPACK	data scaling
MLPHARE	phasing