4D8U

Crystal structure of D-Cysteine desulfhydrase from Salmonella typhimurium at 3.3 A in monoclinic space group with 8 subunits in the asymmetric unit

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	4D8T	PDB ENTRY 4D8T

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	Microbatch method under oil	8.2	298	1.8M Na/K Phosphate pH 8.2, Microbatch method under oil, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
4.42	72.2

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 181.463	α = 90
b = 158.14	β = 94.1
c = 181.925	γ = 90

Symmetry
Space Group	C 1 2 1

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	mirrors	2007-02-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	BRUKER AXS MICROSTAR	1.5418

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	3.3	90.66	90.7	0.123	6.7	2.4		69703			60.032

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	3.3	3.48	87.9		0.425	2	2.4	9823

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	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 4D8T	3.3	52.04	66132	3499	90.38	0.24756	0.24612	0.27462	RANDOM	66.376

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	0.03		-0.02

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.809
r_dihedral_angle_4_deg	23.612
r_dihedral_angle_3_deg	18.979
r_dihedral_angle_1_deg	6.154
r_scangle_it	1.947
r_angle_refined_deg	1.69
r_scbond_it	1.114
r_mcangle_it	0.868
r_mcbond_it	0.448
r_chiral_restr	0.112
r_bond_refined_d	0.015
r_gen_planes_refined	0.006
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
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_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	19098
Nucleic Acid Atoms
Solvent Atoms	18
Heterogen Atoms	40

Software

Software
Software Name	Purpose
MAR345dtb	data collection
PHASER	phasing
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling