3ITA

Crystal structure of Penicillin-Binding Protein 6 (PBP6) from E. coli in acyl-enzyme complex with ampicillin

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3IT9	APO PBP6 STRUCTURE

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		4.5	292	PEG 8000, pH 4.5, vapor diffusion, hanging drop, temperature 292K

Crystal Properties
Matthews coefficient	Solvent content
2.83	56.52

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 56.938	α = 90
b = 185.98	β = 101.37
c = 83.036	γ = 90

Symmetry
Space Group	P 1 21 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	ADSC QUANTUM Q315R	MIRRORS	2009-04-10		SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.3.1		ALS	8.3.1

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	1.8	50	95	0.028	19.2	2.2		148355

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)
	1.8	1.86	91.8		0.43		2.2

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	APO PBP6 STRUCTURE	1.8	35.81	148303	7305	94.8	0.205	0.203	0.25	RANDOM	40.62

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]
1.11		-0.47	-1.84		0.55

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.193
r_dihedral_angle_4_deg	21.141
r_dihedral_angle_3_deg	20.143
r_dihedral_angle_1_deg	15.563
r_scangle_it	9.914
r_scbond_it	6.741
r_mcangle_it	4.591
r_mcbond_it	3.166
r_angle_refined_deg	1.322
r_chiral_restr	0.114
r_bond_refined_d	0.011
r_gen_planes_refined	0.006
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	10371
Nucleic Acid Atoms
Solvent Atoms	774
Heterogen Atoms	78

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data reduction
HKL-2000	data scaling
REFMAC	phasing