1AIR

PECTATE LYASE C FROM ERWINIA CHRYSANTHEMI (EC16) TO A RESOLUTION OF 2.2 ANGSTROMS WITH 128 WATERS

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7.2		PROTEIN WAS CRYSTALLIZED FROM 1.9 M AMMONIUM SULFATE, 0.1M HEPES, PH 7.2 SYMMETRY OPERATIONS FOR NON-STANDARD SETTING: SYMMETRY= (X,Y,Z) SYMMETRY=(-X+1/2,-Y,Z+1/2) SYMMETRY= (-X,Y+1/2,-Z+1/2) SYMMETRY=(X+1/2,-Y+1/2,-Z)

Crystal Properties
Matthews coefficient	Solvent content
3.76	67.29

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 72	α = 90
b = 83	β = 90
c = 95	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	291	AREA DETECTOR	XUONG-HAMLIN MULTIWIRE	COLLIMATOR	1990-02-01	M

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	2.2	10	95.1	0.175		2.8		25685

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	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	MIR	THROUGHOUT	2.2	10	2	25685		96	0.172	0.172	0.223	RANDOM

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	1.774
x_improper_angle_d	1.199
x_bond_d	0.008
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	2642
Nucleic Acid Atoms
Solvent Atoms	128
Heterogen Atoms

Software

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