Experiment: 1HWK

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1DQA	pdb entry 1dqa

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	microseeding	7.5	294	PEG 4000, ammonium acetate, glycerol, DTT, Hepes, Microseeding, pH 7.5 at 294 K, microseeding

Crystal Properties
Matthews coefficient	Solvent content
2.3	44

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 74.596	α = 90
b = 172.724	β = 117.73
c = 80.008	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	123	CCD	ADSC QUANTUM 4	mirror	2000-07-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	CHESS BEAMLINE F1	0.942	CHESS	F1

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	2.21	100	98.6	0.038	30.8	3.7	87343	87343		-3	32.8

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)
	2.21	2.25	84.3		0.309	3.3	2.8	3712

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (I)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	difference fourier	THROUGHOUT	pdb entry 1dqa	2.22	43.4	-3	86963	86963	2002	98.6	0.212	0.21	0.235	RANDOM	52.7

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]
3.91		12.64	-5.87		1.95

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	22.9
c_scangle_it	2.72
c_mcangle_it	1.85
c_scbond_it	1.85
c_improper_angle_d	1.42
c_angle_deg	1.4
c_mcbond_it	1.12
c_bond_d	0.011

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	11772
Nucleic Acid Atoms
Solvent Atoms	225
Heterogen Atoms	299

Software

Software
Software Name	Purpose
CNS	refinement
DENZO	data reduction
SCALEPACK	data scaling
CNS	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.