7RCW

Crystal structure of C. difficile penicillin-binding protein 2 in complex with ampicillin

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	6G9F

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		293	15% PEG 4000, 0.2 M AmSO4, and 0.1 M Na Citrate pH 5.6

Crystal Properties
Matthews coefficient	Solvent content
4.21	70.81

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 62.91	α = 90
b = 200.19	β = 100.11
c = 70.68	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	PIXEL	DECTRIS PILATUS3 6M		2020-04-28	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID	0.97918	APS	19-ID

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	3	50	90.2	0.115	0.132	0.063	0.989	9.2	3.6		30882

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	3	3.16	86.1		0.659	0.755	0.358	0.774		3.6

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	6G9F	3	50	29337	1505	89.77	0.1998	0.1968	0.2596	RANDOM	64.274

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]
-0.1		-3.28	3.33		-1.94

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.801
r_dihedral_angle_3_deg	18.505
r_dihedral_angle_4_deg	18.28
r_dihedral_angle_1_deg	7.561
r_angle_refined_deg	1.54
r_angle_other_deg	1.19
r_chiral_restr	0.06
r_bond_refined_d	0.007
r_gen_planes_refined	0.006
r_bond_other_d	0.002

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.801
r_dihedral_angle_3_deg	18.505
r_dihedral_angle_4_deg	18.28
r_dihedral_angle_1_deg	7.561
r_angle_refined_deg	1.54
r_angle_other_deg	1.19
r_chiral_restr	0.06
r_bond_refined_d	0.007
r_gen_planes_refined	0.006
r_bond_other_d	0.002
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6430
Nucleic Acid Atoms
Solvent Atoms	28
Heterogen Atoms	42

Software

Software
Software Name	Purpose
REFMAC	refinement
Aimless	data scaling
PDB_EXTRACT	data extraction
iMOSFLM	data reduction
MoRDa	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.