3RV3

Crystal structure of E.coli biotin carboxylase in complex with two ADP and one Mg ion

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.2	295	Bis-Tris, PEG3350, NH4Cl, n-octyl-beta-D-glucose, pH 6.2, VAPOR DIFFUSION, SITTING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
2.13	42.13

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 171.357	α = 90
b = 58.009	β = 94.64
c = 85.236	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		CCD				M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X4A		NSLS	X4A

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	1.9	30	99.9	0.117	7.2	6		64727

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	1.9	1.97	99.7		0.371		5.8	6411

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	1.91	30	64727	3281	99.42	0.2105	0.2077	0.2625	RANDOM	19.2957

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]
1.09		0.66	0.25		-1.24

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.371
r_dihedral_angle_4_deg	16.128
r_dihedral_angle_3_deg	13.923
r_dihedral_angle_1_deg	5.64
r_scangle_it	2.579
r_scbond_it	1.653
r_angle_refined_deg	1.351
r_mcangle_it	0.993
r_mcbond_it	0.636
r_nbtor_refined	0.296
r_symmetry_vdw_refined	0.272
r_nbd_refined	0.201
r_xyhbond_nbd_refined	0.172
r_symmetry_hbond_refined	0.15
r_metal_ion_refined	0.109
r_chiral_restr	0.088
r_bond_refined_d	0.011
r_gen_planes_refined	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6883
Nucleic Acid Atoms
Solvent Atoms	747
Heterogen Atoms	110

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction