4KXX

Human transketolase in covalent complex with donor ketose D-sedoheptulose-7-phosphate

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.9	279	Reservoir mixture of 13.5-15 % PEG 6000 (W/V), 4% PEG 400 (V/V), 2 % glycerol (v/v), pH 7.9, VAPOR DIFFUSION, HANGING DROP, temperature 279.0K

Crystal Properties
Matthews coefficient	Solvent content
2.13	42.3

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 113.675	α = 90
b = 86.097	β = 125.43
c = 73.017	γ = 90

Symmetry
Space Group	C 1 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	MARMOSAIC 225 mm CCD	mirrors	2011-11-22	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	BESSY BEAMLINE 14.1	0.9841	BESSY	14.1

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	1.03	30	98.9	0.053	15.48	3	279021	279021		-3	9.994

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)
1	1.03	1.08	98.6		0.534	2.33

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	FOURIER SYNTHESIS	FREE R	PDB ENTRY 3MOS	1.03	30	264953	264953	13950	99.1	0.1187	0.1174	0.1174	0.1483	RANDOM	15.5613

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]

RMS Deviations
Key	Refinement Restraint Deviation
s_angle_d	326
s_zero_chiral_vol	85
s_non_zero_chiral_vol	3
s_approx_iso_adps	0.134
s_anti_bump_dis_restr	0.093
s_rigid_bond_adp_cmpnt	0.024
s_bond_d	0.017
s_similar_dist
s_from_restr_planes
s_similar_adp_cmpnt

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4755
Nucleic Acid Atoms
Solvent Atoms	785
Heterogen Atoms	94

Software

Software
Software Name	Purpose
XSCALE	data scaling
SHELX	refinement
PDB_EXTRACT	data extraction
DNA	data collection
XDS	data reduction
PHENIX	phasing
SHELXL	refinement

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 R01GM133198.