3MZE

Structure of penicillin-binding protein 5 from E.coli: cefoxitin acyl-enzyme complex

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1NZO	PDB entry 1NZO

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7	294	100 MM TRIS PH 7.0, 8 % PEG 400, VAPOR DIFFUSION, SITTING DROP, temperature 294K

Crystal Properties
Matthews coefficient	Solvent content
2.51	51

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 109.42	α = 90
b = 50.34	β = 120.44
c = 84.23	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	100	IMAGE PLATE	RIGAKU RAXIS IV++	osmic blue	2001-12-02	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RUH3R	1.5418

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym 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	2.1	54	100	0.095	0.095	5.2	4.3	23307	23307			31.7

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.1	2.18	100		0.371	0.371	1.9

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	FOURIER SYNTHESIS	THROUGHOUT	PDB entry 1NZO	2.1	54	23241	23241	1197	99.72	0.228	0.228	0.225	0.281	RANDOM	28.57

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]
0.34		-0.1	-0.93		0.49

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.656
r_dihedral_angle_3_deg	16.321
r_dihedral_angle_4_deg	15.507
r_dihedral_angle_1_deg	6.608
r_scangle_it	2.564
r_scbond_it	1.63
r_angle_refined_deg	1.493
r_mcangle_it	1.167
r_mcbond_it	0.68
r_nbtor_refined	0.294
r_nbd_refined	0.205
r_symmetry_hbond_refined	0.173
r_symmetry_vdw_refined	0.167
r_xyhbond_nbd_refined	0.153
r_chiral_restr	0.085
r_bond_refined_d	0.012
r_gen_planes_refined	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2713
Nucleic Acid Atoms
Solvent Atoms	118
Heterogen Atoms	48

Software

Software
Software Name	Purpose
REFMAC	refinement
CNS	refinement
CrystalClear	data collection
d*TREK	data reduction
d*TREK	data scaling
CNS	phasing