3G7K

Crystal Structure of Methylitaconate-delta-isomerase

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8	293	Protein solution: 150mM Tris/HCl, 150mM NaCl; Reservoir solution: 23% PEG 1500, 18% glycerol anhydrous. 0.001ml protein plus 0.001ml reservoir, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.59	52.51

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 53.078	α = 90
b = 142.077	β = 90
c = 228.452	γ = 90

Symmetry
Space Group	P 21 21 21

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	LN2 cooled fixed-exit, Si(111) monochromator; Dynamically bendable mirror	2008-06-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SLS BEAMLINE X10SA	1.0707	SLS	X10SA

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	2.7	50	98	0.086	0.086	20.6	4		47521

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.7	2.8	95.4		0.434	0.434	2.6	3.3

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 2PW0	2.7	50	63650	45050	2402	97.78	0.20267	0.19986	0.25559	RANDOM	46.36

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]
1.42			1.69		-3.11

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.322
r_dihedral_angle_4_deg	24.971
r_dihedral_angle_3_deg	19.102
r_dihedral_angle_1_deg	7.497
r_scangle_it	2.683
r_scbond_it	1.619
r_angle_refined_deg	1.485
r_mcangle_it	1.182
r_mcbond_it	0.704
r_nbtor_refined	0.31
r_symmetry_hbond_refined	0.243
r_nbd_refined	0.223
r_symmetry_vdw_refined	0.214
r_xyhbond_nbd_refined	0.167
r_chiral_restr	0.095
r_bond_refined_d	0.013
r_gen_planes_refined	0.005
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	10127
Nucleic Acid Atoms
Solvent Atoms	465
Heterogen Atoms

Software

Software
Software Name	Purpose
MAR345dtb	data collection
MOLREP	phasing
REFMAC	refinement
HKL-2000	data reduction
SCALEPACK	data scaling