3DPB

Crystal structure of the complex of the Caf1M chaperone with the mini-fiber of two Caf1 subunits (Caf1:Caf1), carrying the Ala9Val, Ala11Val, and Leu13Val mutations in the Gd donor strand

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.9	295	16-17% PEG 8000 in 0.1 M Na cacodylate and 0.2 M Ca acetate, pH 5.9, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
2.49	50.65

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 69.909	α = 90
b = 179.955	β = 90
c = 45.62	γ = 90

Symmetry
Space Group	P 21 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	ADSC QUANTUM 4		2006-02-27	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-2	0.933	ESRF	ID14-2

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	2.2	40	82.1	0.065	20.8	4.6		24702	2	2	20.85

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.2	2.32	72.4

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB entry 1Z9S	2.2	40	2	23402	1259	81.84	0.20073	0.1984	0.24353	RANDOM	20.85

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]
-0.76			1.18		-0.42

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.616
r_dihedral_angle_4_deg	19.192
r_dihedral_angle_3_deg	16.18
r_dihedral_angle_1_deg	6.741
r_scangle_it	3.767
r_scbond_it	2.412
r_mcangle_it	1.688
r_angle_refined_deg	1.54
r_mcbond_it	1.004
r_nbtor_refined	0.306

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.616
r_dihedral_angle_4_deg	19.192
r_dihedral_angle_3_deg	16.18
r_dihedral_angle_1_deg	6.741
r_scangle_it	3.767
r_scbond_it	2.412
r_mcangle_it	1.688
r_angle_refined_deg	1.54
r_mcbond_it	1.004
r_nbtor_refined	0.306
r_symmetry_hbond_refined	0.211
r_nbd_refined	0.199
r_symmetry_vdw_refined	0.137
r_xyhbond_nbd_refined	0.133
r_chiral_restr	0.098
r_bond_refined_d	0.016
r_gen_planes_refined	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3576
Nucleic Acid Atoms
Solvent Atoms	130
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
MxCuBE	data collection
MOSFLM	data reduction
SCALA	data scaling
MOLREP	phasing

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.