3F1K

Crystal Structure of yciK from E. coli, an oxidoreductase, complexed with NADP+ at 2.6A resolution

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.6	295	0.1M Sodium Acetate monohydrate pH 4.6, 8% w/v polyethylene glycol 4000, vapor diffusion, hanging drop, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
3.21	61.67

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 88.509	α = 90
b = 88.509	β = 90
c = 80.419	γ = 120

Symmetry
Space Group	P 32 2 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	MAR CCD 300 mm	Si(III) Monochromator	2007-11-01	M	MAD
2	1	x-ray	100	CCD	MAR CCD 165 mm	Diamond (III) Monochromator	2007-11-23	M	SAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-D	0.97887, 0.97864, 0.96860	APS	21-ID-D
2	SYNCHROTRON	APS BEAMLINE 31-ID	0.97990	APS	31-ID

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	2.5	44.25	99.9	0.114	16.6	21.76		12975			53.3

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)
	2.5	2.59	100		0.424	6.3	21.4	1282

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MAD, SAD	2.6	35.608	21570	2188	99.62	0.216	0.211	0.261	58.194

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]
-3.711			-3.711		7.423

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	20.705
f_angle_d	1.416
f_chiral_restr	0.082
f_bond_d	0.01
f_plane_restr	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1956
Nucleic Acid Atoms
Solvent Atoms	49
Heterogen Atoms	48

Software

Software
Software Name	Purpose
d*TREK	data processing
PHENIX	refinement
PDB_EXTRACT	data extraction
d*TREK	data reduction
d*TREK	data scaling
PHENIX	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.