1Q6L

Structure of 3-keto-L-gulonate 6-phosphate decarboxylase with bound L-threonohydroxamate 4-phosphate

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	MICROBATCH	7	298	16% MEPEG 2000, 50 mM BTP pH 7.0, 5 mM MgCl2, Microbatch, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.13	41.8

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 122.963	α = 90
b = 41.931	β = 96.91
c = 91.457	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	IMAGE PLATE	RIGAKU RAXIS IV		2002-05-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU	1.5418

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.8	91.2	91	5.6		56895			2	24.3

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)
	1.8	1.86	77.8		0.099	3.2

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	MOLECULAR REPLACEMENT	THROUGHOUT	1.8	91.29	40751	38709	2042	93.92	0.19142	0.17478	0.17246	0.2183	RANDOM	21.735

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]
-1.58		-0.24	2.56		-1.03

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	6.476
r_scangle_it	5.632
r_scbond_it	4.203
r_mcangle_it	3.053
r_mcbond_it	2.051
r_angle_refined_deg	1.824
r_angle_other_deg	1.56
r_symmetry_vdw_other	0.316
r_nbd_other	0.248
r_symmetry_hbond_refined	0.244
r_nbd_refined	0.231
r_xyhbond_nbd_refined	0.166
r_symmetry_vdw_refined	0.134
r_chiral_restr	0.119
r_nbtor_other	0.088
r_bond_refined_d	0.023
r_gen_planes_other	0.011
r_gen_planes_refined	0.01
r_bond_other_d	0.002
r_dihedral_angle_2_deg
r_xyhbond_nbd_other
r_symmetry_hbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3279
Nucleic Acid Atoms
Solvent Atoms	319
Heterogen Atoms	30

Software

Software
Software Name	Purpose
REFMAC	refinement
SCALEPACK	data scaling
CNS	refinement
HKL-2000	data collection
HKL-2000	data reduction
CNS	phasing