1W6T

Crystal Structure Of Octameric Enolase From Streptococcus pneumoniae

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1E9I	PDB ENTRY 1E9I

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7.5		20% (W/V) PEG 1000, 0.3 M MGCL2, AND 0.1 M MES PH 7.5

Crystal Properties
Matthews coefficient	Solvent content
2.76	55.12

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 143.702	α = 90
b = 143.702	β = 90
c = 100.579	γ = 90

Symmetry
Space Group	I 4

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	MARRESEARCH		2002-02-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	MPG/DESY, HAMBURG BEAMLINE BW6		MPG/DESY, HAMBURG	BW6

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	2	20	100	0.08	14.5	3.3		68907

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	2	2.03	100		0.4	2.6	3.4

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1E9I	2.1	100	56519	3008	99.8	0.15	0.148	0.16	0.187	0.2	RANDOM	22.68

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]
1.08			1.08		-2.16

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.834
r_dihedral_angle_4_deg	17.511
r_dihedral_angle_3_deg	13.494
r_dihedral_angle_1_deg	5.11
r_scangle_it	4.236
r_mcangle_it	3.379
r_scbond_it	3.183
r_mcbond_it	2.679
r_angle_refined_deg	1.752
r_angle_other_deg	1.095
r_mcbond_other	0.577
r_nbd_refined	0.204
r_symmetry_hbond_refined	0.2
r_symmetry_vdw_other	0.179
r_nbtor_refined	0.176
r_nbd_other	0.17
r_xyhbond_nbd_refined	0.153
r_symmetry_vdw_refined	0.138
r_chiral_restr	0.097
r_nbtor_other	0.083
r_bond_refined_d	0.02
r_gen_planes_refined	0.006
r_bond_other_d	0.003
r_metal_ion_refined	0.003
r_gen_planes_other	0.002
r_xyhbond_nbd_other
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6566
Nucleic Acid Atoms
Solvent Atoms	535
Heterogen Atoms	28

Software

Software
Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling
EPMR	phasing