6EFG

Pyruvate decarboxylase from Kluyveromyces lactis

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2VK4	PDB entry 2VK4

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.25	281.15	2 mg/mL KlPDC in 2 mM MES, 18 mM citrate, pH 6.25, 4 mM thiamine diphosphate, 4 mM magnesium sulfate, 2 mM DTT, 1:1 with mother liquor (18-24% w/v PEG2000/PEG6000), ~25 days at 8 degrees C, soaked for 30 seconds in 2 uL mother liquor + 2 uL 15% w/v glycerol, 200 mM acetaldehyde prior to flash freezing.

Crystal Properties
Matthews coefficient	Solvent content
2.37	48

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 78.36	α = 80.1
b = 78.48	β = 67.72
c = 100.57	γ = 77.4

Symmetry
Space Group	P 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		2008-11-21	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	EMBL/DESY, HAMBURG BEAMLINE X12	1.00001	EMBL/DESY, HAMBURG	X12

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	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	2.04	38.25	93.2	0.086	0.109	0.065	0.996	8.6	2.7		126964			24.75

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.04	2.08	66.8		0.659	0.837	0.508	0.689	1.7	2.3

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 2VK4	2.04	38.25	125994	970	93.15	0.22123	0.22069	0.2903	RANDOM	37.997

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]
-1.7	-1.22	-0.76	-1.37	0.62	1.55

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.903
r_dihedral_angle_4_deg	18.943
r_dihedral_angle_3_deg	17.669
r_dihedral_angle_1_deg	7.726
r_long_range_B_refined	7.014
r_long_range_B_other	7.014
r_scangle_other	4.719
r_mcangle_it	4.402
r_mcangle_other	4.401
r_scbond_it	3.095
r_scbond_other	3.095
r_mcbond_it	2.98
r_mcbond_other	2.98
r_angle_refined_deg	1.422
r_angle_other_deg	0.919
r_chiral_restr	0.069
r_bond_refined_d	0.01
r_gen_planes_refined	0.007
r_bond_other_d	0.001
r_gen_planes_other	0.001
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_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	16531
Nucleic Acid Atoms
Solvent Atoms	308
Heterogen Atoms	108

Software

Software
Software Name	Purpose
REFMAC	refinement
xia2	data reduction
XDS	data reduction
Aimless	data scaling
MOLREP	phasing