1MKS

CARBOXYLIC ESTER HYDROLASE, TRIGONAL FORM OF THE TRIPLE MUTANT

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.2		CRYSTALS WERE GROWN BY THE HANGING DROP VAPOR DIFFUSION METHOD FROM DROPLETS CONTAINING 5 (MICRO)L OF THE MUTANT PROTEIN (15MG/ML) 5MM CACL2, 50MM TRIS BUFFER, PH 7.2 AND 2 (MICRO)L OF 75% MPD AND (50%) OF MPD IN THE RESERVOIR, vapor diffusion - hanging drop

Crystal Properties
Matthews coefficient	Solvent content
2.38	48

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 47.08	α = 90
b = 47.08	β = 90
c = 102.37	γ = 120

Symmetry
Space Group	P 31 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	291	IMAGE PLATE	RIGAKU RAXIS IIC		1995-12-01	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1

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	1.82	15	8	0.069		2		7346

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)
	1.82	2	29		0.194	1.72

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	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	THE ATOMIC COORDINATES OF THE NEW HIGH RESOLUTION REFINEMENT OF THE TRIGONAL FORM OF THE NATIVE ENZYME WERE USED AS THE STARTING MODEL (PDB ENTRY 1MKT).	WILD TYPE	1.9	8	2	6809		64	0.186	0.186

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_dihedral_angle_d	23.1
x_angle_deg	2.7
x_improper_angle_d	1.2
x_bond_d	0.015
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_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	955
Nucleic Acid Atoms
Solvent Atoms	77
Heterogen Atoms	1

Software

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