3ZNB | pdb_00003znb

METALLO-BETA-LACTAMASE (ZN, HG-BOUND FORM)

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1ZNB	PDB ENTRY 1ZNB WITHOUT METALS OR SOLVENT

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7		27-29% POLYETHYLENE GLYCOL 2000, 0.1M HEPES, PH 7.0, 10UM ZNCL2, 0.3M NACL, AT ROOM TEMPERATURE. THE CRYSTALS WERE SOAKED OVERNIGHT AT ROOM TEMPERATURE IN 10MM K2HGI4 + 20MM KI.

Crystal Properties
Matthews coefficient	Solvent content
2.04	40

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 78.2	α = 90
b = 78.2	β = 90
c = 140.6	γ = 90

Symmetry
Space Group	P 43 21 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	130	AREA DETECTOR	SIEMENS		1995-03-22	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RUH2R

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.7	39	90	0.045	23	3.6		11371

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.7	2.87	47		0.145	6.4

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Free (Depositor)	Mean Isotropic B
X-RAY DIFFRACTION	DIFFERENCE FOURIER	PDB ENTRY 1ZNB WITHOUT METALS OR SOLVENT	2.7	8	2	10639		90	0.2	0.2	0.268	18.4

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]

RMS Deviations
Key	Refinement Restraint Deviation
x_angle_deg	2.2
x_improper_angle_d	1.8
x_bond_d	0.02
x_bond_d_na
x_bond_d_prot
x_angle_d
x_angle_d_na
x_angle_d_prot
x_angle_deg_na
x_angle_deg_prot
x_dihedral_angle_d
x_dihedral_angle_d_na
x_dihedral_angle_d_prot
x_improper_angle_d_na
x_improper_angle_d_prot
x_mcbond_it
x_mcangle_it
x_scbond_it
x_scangle_it

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3417
Nucleic Acid Atoms
Solvent Atoms	65
Heterogen Atoms	6

Software

Software
Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
XENGEN	data reduction
XENGEN	data scaling
X-PLOR	phasing