2C18 | pdb_00002c18

5-(4-Carboxy-2-oxo-butane-1-sulfonyl)-4-oxo-pentanoic acid bound to Porphobilinogen synthase from Pseudomonas aeruginosa

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1B4K	PDB ENTRY 1B4K

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5		HANGING DROP IN 24-WELL LIMBRO PLATES. DROPS MADE OF 5 MICROLITRES PROTEIN SOLUTION, 10 MG/ML PROTEIN, 50 MM TRIS-HCL, PH 7.5, 5 MM MGCL2, 10 MM 5-(4-CARBOXY-2-OXO-BUTANE-1-SULFONYL)-4-OXO-PENTANOIC ACID DISODIUM SALT) PLUS 5 MICROL RESERVOIR SOLUTION (31.0 % (V/V) PEG-400, 100 MM NA-HEPES PH 7.5, 180 MM MGCL2) ABOVE 500 MICROL OF RESERVOIR SOLUTION.

Crystal Properties
Matthews coefficient	Solvent content
2.3	45.4

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 125.596	α = 90
b = 125.596	β = 90
c = 86.573	γ = 90

Symmetry
Space Group	P 4 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	MARRESEARCH	MIRRORS	2005-02-09	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	BESSY BEAMLINE 14.1		BESSY	14.1

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	1.93	39.5	95	0.12	11.7	6.1		55920

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	1.93	1.98	93.4		0.48	3.46	5.5

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 1B4K	1.93	89.8	47003	2515	94.3	0.151	0.149	0.15	0.186	0.19	RANDOM	19.11

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]
0.09			0.09		-0.18

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.08
r_dihedral_angle_4_deg	19.034
r_dihedral_angle_3_deg	14.31
r_dihedral_angle_1_deg	8.678
r_scangle_it	3.518
r_scbond_it	2.197
r_angle_refined_deg	1.469
r_mcangle_it	1.24
r_mcbond_it	0.706
r_nbtor_refined	0.297
r_symmetry_vdw_refined	0.212
r_nbd_refined	0.205
r_symmetry_hbond_refined	0.166
r_xyhbond_nbd_refined	0.13
r_chiral_restr	0.102
r_bond_refined_d	0.015
r_gen_planes_refined	0.007
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_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	5155
Nucleic Acid Atoms
Solvent Atoms	639
Heterogen Atoms	31

Software

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