5MHB

Product-Complex of E.coli 5-Amino Laevulinic Acid Dehydratase

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.2	293	ALAD at 7 mg per ml mixed with equal volume of well solution: 200 mM Tris pH 8.0 - 8.4, 2 % saturated Ammonium sulphate, 200 microM zinc sulphate, 6 mM beta-mercaptoethanol and 3 mM porphobilinogen. Crystals were grown in the dark.

Crystal Properties
Matthews coefficient	Solvent content
4.14	70.3

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 128.619	α = 90
b = 128.619	β = 90
c = 142.815	γ = 90

Symmetry
Space Group	I 4 2 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	IMAGE PLATE	MAR scanner 345 mm plate		1997-11-06	M	SINGLE WAVELENGTH
2	1	x-ray	100	IMAGE PLATE	MAR scanner 300 mm plate		1998-06-03	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE BM14	1.069	ESRF	BM14
2	SYNCHROTRON	EMBL/DESY, HAMBURG BEAMLINE X11	0.834	EMBL/DESY, HAMBURG	X11

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	CC (Half)	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
2	2.07	23.84	95.2	0.078	0.998	15.3	7		34487

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
2	2.07	2.19	68.1		0.368	0.911	3.2	4.3

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	FOURIER SYNTHESIS	THROUGHOUT	1b4e	2.1	95.57	32987	1761	98.95	0.15953	0.15676	0.21285	RANDOM	34.462

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]
0.62			0.62		-1.24

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.421
r_dihedral_angle_4_deg	19.411
r_dihedral_angle_3_deg	14.638
r_long_range_B_refined	7.634
r_long_range_B_other	7.391
r_dihedral_angle_1_deg	6.664
r_scangle_other	4.7
r_scbond_it	3.005
r_scbond_other	2.922
r_mcangle_it	2.894
r_mcangle_other	2.893
r_angle_refined_deg	2.541
r_mcbond_it	1.933
r_mcbond_other	1.933
r_angle_other_deg	1.346
r_chiral_restr	0.162
r_bond_refined_d	0.028
r_gen_planes_refined	0.014
r_bond_other_d	0.003
r_gen_planes_other	0.002
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2484
Nucleic Acid Atoms
Solvent Atoms	327
Heterogen Atoms	37

Software

Software
Software Name	Purpose
MOSFLM	data reduction
SCALA	data scaling
REFMAC	refinement