1DDK | pdb_00001ddk

CRYSTAL STRUCTURE OF IMP-1 METALLO BETA-LACTAMASE FROM PSEUDOMONAS AERUGINOSA

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.5	293	drop contained 5 uL protein (14mg/mL in 20mM HEPES, pH 7.5) with 5 uL reservoir (0.2M sodium acetate, 30% PEG4000, 0.1M sodium citrate pH 5.6). Crystal grew as plates after 2 weeks., pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 50.3	α = 90
b = 105.8	β = 93.9
c = 112.3	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	298	AREA DETECTOR	SIEMENS X1000		1997-02-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU300

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	3	20	90.1	0.14		1.6		19288		2	34

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	3	3.1	56.6		0.249

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 (Depositor)	R-Free (Depositor)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION		THROUGHOUT	3.1	20	19263	1898	90.2	0.255	0.255	0.288	RANDOM	16.9

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]
-6.64		-2.41	-0.99		7.62

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	24.4
c_scangle_it	5.63
c_mcangle_it	4.4
c_scbond_it	3.64
c_mcbond_it	2.68
c_angle_deg	1.8
c_improper_angle_d	1.32
c_bond_d	0.013

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1722
Nucleic Acid Atoms
Solvent Atoms	1
Heterogen Atoms	6

Software

Software
Software Name	Purpose
CCP4	model building
CNS	refinement
FRAMBO	data collection
XDS	data scaling
CCP4	phasing