3EL6

Crystal Structure of the Erythromycin Dehydratase

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	Other		A model generated by PHENIX from the anomalous bromine dataset

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.4	295	2.15 M ammonium sulfate, 100 mM sodium cacodylate pH 6.4, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
3.19	61.49

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 66.997	α = 90
b = 66.997	β = 90
c = 186.238	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	100	CCD	ADSC QUANTUM 315	mirrors	2008-04-12	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.3.1	1.1159, 0.9200	ALS	8.3.1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	1.85	50	100	0.076	0.076	42.5	14	37089	37089			31

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.85	1.92	100		0.659	0.659	2.5	14.2	3513

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	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	SAD	THROUGHOUT	A model generated by PHENIX from the anomalous bromine dataset	1.85	45.55	37089	33313	3687	99.86	0.2003	0.19722	0.22692	RANDOM	32.98

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]
0.35			0.35		-0.69

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.7
r_dihedral_angle_4_deg	20.371
r_dihedral_angle_3_deg	15.839
r_dihedral_angle_1_deg	6.012
r_scangle_it	5.635
r_scbond_it	3.397
r_mcangle_it	2.549
r_angle_refined_deg	1.794
r_mcbond_it	1.409
r_chiral_restr	0.148
r_bond_refined_d	0.019
r_gen_planes_refined	0.01

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1989
Nucleic Acid Atoms
Solvent Atoms	247
Heterogen Atoms	6

Software

Software
Software Name	Purpose
ADSC	data collection
PHENIX	model building
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling
PHENIX	phasing