4FBE

Crystal structure of the C136A/C164A variant of mitochondrial isoform of glutaminyl cyclase from Drosophila melanogaster

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	4FAI	PDB ENTRY 4FAI

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.5	294	30% PEG4000, 0.2 M magnesium chloride, 1 mM PQ50, 0.1 M Tris-HCl, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 294K

Crystal Properties
Matthews coefficient	Solvent content
1.94	36.74

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 45.928	α = 84.93
b = 46.436	β = 75.17
c = 74.15	γ = 74.47

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	RAYONIX MX-225	MIRRORS	2010-07-10	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	BESSY BEAMLINE 14.1	0.91841	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	1.88	71.663	79.7	0.075	9.2	1.9	36766	36763		-3.7	16

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	1.88	1.99	28.5		0.342	2.4	1.7	1926

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	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 4FAI	1.88	71.66	36763	36763	1837	79.65	0.17463	0.17463	0.1705	0.2233	RANDOM	14.238

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]
-0.06	0.4	0.58	0.71	-0.09	-1.15

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.93
r_dihedral_angle_4_deg	19.816
r_dihedral_angle_3_deg	13.957
r_dihedral_angle_1_deg	6.003
r_angle_refined_deg	1.392
r_angle_other_deg	0.899
r_chiral_restr	0.081
r_bond_refined_d	0.013
r_gen_planes_refined	0.007
r_bond_other_d	0.002
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_mcbond_it
r_mcbond_other
r_mcangle_it
r_scbond_it
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	4930
Nucleic Acid Atoms
Solvent Atoms	424
Heterogen Atoms	47

Software

Software
Software Name	Purpose
MxCuBE	data collection
MOLREP	phasing
REFMAC	refinement
XDS	data reduction
SCALA	data scaling