3H9M

Crystal structure of para-aminobenzoate synthetase, component I from Cytophaga hutchinsonii

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.5	294	100mM MES pH 6.5 + 25% PEG 3000, VAPOR DIFFUSION, SITTING DROP, temperature 294K

Crystal Properties
Matthews coefficient	Solvent content
2.79	55.97

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 60.006	α = 90
b = 159.497	β = 90
c = 115.542	γ = 90

Symmetry
Space Group	C 2 2 21

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	MAR CCD 165 mm		2009-04-09	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 31-ID	.97929	APS	31-ID

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	1.56	21.37	96.7	0.072	19.6	14.4		76012			18.6

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)
	1.56	1.65	78.1		0.43	6.4	12.6	8898

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	SAD	THROUGHOUT	Built using ARP/wARP	1.57	20.81	75965	3818	100	0.174	0.173	0.192	RANDOM	22.818

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]
0.01			-0.01

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.32
r_dihedral_angle_4_deg	21.839
r_dihedral_angle_3_deg	12.372
r_dihedral_angle_1_deg	6.096
r_scangle_it	2.968
r_scbond_it	2.086
r_mcangle_it	1.301
r_angle_refined_deg	1.279
r_mcbond_it	0.983
r_angle_other_deg	0.832
r_symmetry_vdw_other	0.211
r_nbd_refined	0.195
r_mcbond_other	0.189
r_nbd_other	0.186
r_nbtor_refined	0.185
r_symmetry_vdw_refined	0.134
r_symmetry_hbond_refined	0.117
r_xyhbond_nbd_refined	0.109
r_nbtor_other	0.084
r_chiral_restr	0.082
r_bond_refined_d	0.01
r_gen_planes_refined	0.006
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3138
Nucleic Acid Atoms
Solvent Atoms	406
Heterogen Atoms	18

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
ADSC	data collection
MOSFLM	data reduction
SCALA	data scaling
HKL2Map	phasing