4GYL

The E142L mutant of the amidase from Geobacillus pallidus showing the result of Michael addition of acrylamide at the active site cysteine

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.6	294	1.2M sodium citrate, 0.4M sodium chloride, 0.1M sodium acetate, pH 5.6, vapor diffusion, hanging drop, temperature 294K

Crystal Properties
Matthews coefficient	Solvent content
2.4	48.68

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 130.49	α = 90
b = 130.49	β = 90
c = 130.49	γ = 90

Symmetry
Space Group	P 42 3 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	RIGAKU SATURN 944+	VariMax HF Confocal Optical System	2011-10-22	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU MICROMAX-007 HF	1.542

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	1.9	24.23	99.9	0.246	7.8	15.98		30455

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	1.9	1.97	99.1		0.688	2.1	6.56	2954

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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1.9	24.23	30454	1537	99.79	0.1643	0.1631	0.1866	RANDOM	17.561

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
r_dihedral_angle_2_deg	34.549
r_dihedral_angle_4_deg	15.564
r_dihedral_angle_3_deg	13.824
r_dihedral_angle_1_deg	7.308
r_angle_refined_deg	2.075
r_angle_other_deg	1.072
r_chiral_restr	0.137
r_bond_refined_d	0.023
r_gen_planes_refined	0.012
r_bond_other_d	0.006

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.549
r_dihedral_angle_4_deg	15.564
r_dihedral_angle_3_deg	13.824
r_dihedral_angle_1_deg	7.308
r_angle_refined_deg	2.075
r_angle_other_deg	1.072
r_chiral_restr	0.137
r_bond_refined_d	0.023
r_gen_planes_refined	0.012
r_bond_other_d	0.006
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2649
Nucleic Acid Atoms
Solvent Atoms	243
Heterogen Atoms	6

Software

Software
Software Name	Purpose
d*TREK	data reduction
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data collection
d*TREK	data scaling
REFMAC	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.