3VML

Chimera 3-isopropylmalate dehydrogenase between Shewanella oneidensis MR-1 (O) and Shewanella benthica DB21 MT-2 (M) from N-terminal: 20% O middle 70% M residual 10% O

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1A05	PDB ENTRY 1A05

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	hanging drop	7.5	293	PEG 3350, sodium chloride, HEPES, pH 7.5, hanging drop, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.44	49.6

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 89.008	α = 90
b = 107.523	β = 90
c = 83.109	γ = 90

Symmetry
Space Group	C 2 2 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	ADSC QUANTUM 270		2011-10-22	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	PHOTON FACTORY BEAMLINE BL-5A	1.000	Photon Factory	BL-5A

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	1.56	50	98.4	0.066	14.9	4.5		56022

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	1.56	1.59	94.1		0.403		3.5

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	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 1A05	1.56	33.25	53159	2830	98.33	0.17907	0.17749	0.20903	RANDOM	19.924

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]
-1.2			0.34		0.86

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.41
r_dihedral_angle_4_deg	18.462
r_dihedral_angle_3_deg	13.221
r_dihedral_angle_1_deg	6.034
r_scangle_it	5.339
r_scbond_it	3.518
r_angle_refined_deg	2.364
r_mcangle_it	2.307
r_mcbond_it	1.512
r_chiral_restr	0.171
r_bond_refined_d	0.03
r_gen_planes_refined	0.014
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
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	2753
Nucleic Acid Atoms
Solvent Atoms	472
Heterogen Atoms	14

Software

Software
Software Name	Purpose
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
SERGUI	data collection
HKL-2000	data reduction
HKL-2000	data scaling
MOLREP	phasing