3O2V

Crystal structure of 1E9 PheL89Ser/LeuH47Trp/MetH100bPhe, an engineered Diels-Alderase Fab with modified specificity and catalytic activity

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2O5X

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.5	293	1.75M ammoniumsulfate, 0.15M sodiumcitrate, 0.01% PEG20000, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
4.55	72.98

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 128.73	α = 90
b = 128.73	β = 90
c = 92.342	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	100				2005-07-06	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.2.1	1.0	ALS	8.2.1

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	2.3	50	99.4	0.057	20.5	4.3		39314

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)
1	2.3	2.38	99.7		0.557	2.4

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	2O5X	2.3	50	37304	1973	99.4	0.19362	0.19225	0.2192	RANDOM	52.729

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]
2.03	1.01		2.03		-3.04

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.741
r_dihedral_angle_4_deg	18.831
r_dihedral_angle_3_deg	15.367
r_dihedral_angle_1_deg	7.086
r_scangle_it	2.949
r_scbond_it	2.251
r_angle_refined_deg	1.816
r_mcangle_it	1.359
r_mcbond_it	1.055
r_angle_other_deg	0.969
r_symmetry_vdw_other	0.271
r_symmetry_hbond_refined	0.219
r_symmetry_vdw_refined	0.217
r_nbd_other	0.2
r_mcbond_other	0.2
r_nbd_refined	0.191
r_nbtor_refined	0.182
r_xyhbond_nbd_refined	0.177
r_chiral_restr	0.103
r_nbtor_other	0.087
r_xyhbond_nbd_other	0.069
r_bond_refined_d	0.019
r_gen_planes_refined	0.006
r_bond_other_d	0.002
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3344
Nucleic Acid Atoms
Solvent Atoms	162
Heterogen Atoms	184

Software

Software
Software Name	Purpose
BOS	data collection
PHASER	phasing
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling