Experiment: 3CHI

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3CHH	PDB entry 3CHH

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.5	280	18-22% PEG 8000, 50 mM Tris-HCl pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 280K

Crystal Properties
Matthews coefficient	Solvent content
2.06	40.29

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 58.425	α = 90
b = 73.316	β = 100.92
c = 74.695	γ = 90

Symmetry
Space Group	P 1 21 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	MARMOSAIC 225 mm CCD		2007-08-21	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-D	0.97869	APS	21-ID-D

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.1	50	99.5	0.052	22.3	3.9	36205	34325

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.1	2.18	98.8		0.269	4.4	3.6	3568

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	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 3CHH	2.1	25	34325	1799	99.57	0.22324	0.22042	0.27729	RANDOM	36.114

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]
-1.53		0.31	0.87		0.78

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.722
r_dihedral_angle_4_deg	19.53
r_dihedral_angle_3_deg	16.937
r_dihedral_angle_1_deg	5.239
r_scangle_it	3.163
r_scbond_it	2.038
r_angle_refined_deg	1.428
r_mcangle_it	1.194
r_mcbond_it	0.769
r_nbtor_refined	0.298

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.722
r_dihedral_angle_4_deg	19.53
r_dihedral_angle_3_deg	16.937
r_dihedral_angle_1_deg	5.239
r_scangle_it	3.163
r_scbond_it	2.038
r_angle_refined_deg	1.428
r_mcangle_it	1.194
r_mcbond_it	0.769
r_nbtor_refined	0.298
r_symmetry_vdw_refined	0.278
r_metal_ion_refined	0.268
r_nbd_refined	0.218
r_xyhbond_nbd_refined	0.197
r_symmetry_hbond_refined	0.138
r_chiral_restr	0.103
r_bond_refined_d	0.014
r_gen_planes_refined	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4808
Nucleic Acid Atoms
Solvent Atoms	205
Heterogen Atoms	6

Software

Software
Software Name	Purpose
REFMAC	refinement
MAR345dtb	data collection
HKL-2000	data reduction
HKL-2000	data scaling
PHASER	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.