1KSF

Crystal Structure of ClpA, an HSP100 chaperone and regulator of ClpAP protease: Structural basis of differences in Function of the Two AAA+ ATPase domains

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	294	iso-propanol, pH 7.5, VAPOR DIFFUSION, HANGING DROP at 294K

Crystal Properties
Matthews coefficient	Solvent content
2.56	51.92

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 124.107	α = 90
b = 124.107	β = 90
c = 97.042	γ = 120

Symmetry
Space Group	P 65

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			M	SINGLE WAVELENGTH
2	1		CCD	MARRESEARCH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X9B	1.000	NSLS	X9B
2	SYNCHROTRON	APS BEAMLINE 5ID-B	1.000	APS	5ID-B

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.6	20	100				22312

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)
	2.6		100		0.493

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Free (Depositor)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION		THROUGHOUT	2.6	20	22312	1396	100	0.22075	0.21554	0.30422	RANDOM	49.65

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]
-1.15	-0.58		-1.15		1.73

RMS Deviations
Key	Refinement Restraint Deviation
r_scangle_it	8.788
r_scbond_it	6.604
r_mcangle_it	3.946
r_mcbond_it	1.682
r_angle_refined_deg	1.379
r_bond_refined_d	0.019
r_planar_d
r_hb_or_metal_coord
r_plane_restr
r_chiral_restr

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5583
Nucleic Acid Atoms
Solvent Atoms	262
Heterogen Atoms	84

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
CCP4	model building
REFMAC	refinement
CCP4	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), 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 R01GM157729.