2FHG | pdb_00002fhg

Crystal Structure of Mycobacterial Tuberculosis Proteasome

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1Q5Q	PDB entry 1Q5Q

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.7	293	8% PEG 6000, 50 mM sodium citrate, pH 5.7, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.51	50.97

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 173.327	α = 90
b = 113.802	β = 113.93
c = 200.133	γ = 90

Symmetry
Space Group	P 1 21 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	77	CCD	ADSC QUANTUM 4		2005-02-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X25	1.0	NSLS	X25

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	3.2	50	80.3	0.058	21.9		86867	91407	2	2

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	3.2	3.31	0.544

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	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 1Q5Q	3.23	50	2	91407	86867	4537	79.58	0.244	0.24448	0.24337	0.2475	0.26611	0.2496	RANDOM	99.863

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]
2.58		0.4	2.13		-4.38

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.506
r_dihedral_angle_4_deg	20.527
r_dihedral_angle_3_deg	17.57
r_dihedral_angle_1_deg	4.555
r_angle_refined_deg	1.161
r_symmetry_vdw_refined	0.599
r_symmetry_hbond_refined	0.556
r_nbtor_refined	0.308
r_nbd_refined	0.253
r_xyhbond_nbd_refined	0.158
r_chiral_restr	0.07
r_bond_refined_d	0.01
r_gen_planes_refined	0.003
r_mcbond_it
r_mcangle_it
r_scbond_it
r_scangle_it

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	46620
Nucleic Acid Atoms
Solvent Atoms	226
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
CBASS	data collection
SCALEPACK	data scaling
CNS	phasing