1UOZ

Structure of the endoglucanase Cel6 from Mycobacterium tuberculosis in complex with thiocellopentaose at 1.1 angstrom

X-RAY DIFFRACTION

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Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7.5		14 % PEG 4K, 100 MM HEPES 7.5, 200 MM LISO4. THE PROTEIN WAS AT 10MG/ML AND INCUBATED WITH 1 MM OF THIOCELLOPENTAOSE FOR 1HR PRIOR. CRYSTALLISATION. 20% GLYCEROL WAS ADDED AS CRYOPROTECTANT, pH 7.50

Crystal Properties
Matthews coefficient	Solvent content
2.03	38.81

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 61.94	α = 90
b = 92.627	β = 90
c = 46.677	γ = 90

Symmetry
Space Group	P 21 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	120	CCD	ADSC CCD		2002-03-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-2		ESRF	ID14-2

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	1.1	51.2	99.7	0.075	17	5.1		109101		2

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	1.1	1.16	99.1		0.123	7.9	4.4

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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1TML	1.1	51.3	103639	5464	99.6	0.113	0.112	0.13	RANDOM	7.85

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]
0.03			-0.14		0.11

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	5.952
r_sphericity_free	5.355
r_sphericity_bonded	3.521
r_scangle_it	3.363
r_scbond_it	2.47
r_mcangle_it	1.939
r_angle_refined_deg	1.762
r_rigid_bond_restr	1.332
r_mcbond_it	1.318
r_angle_other_deg	0.938
r_symmetry_vdw_other	0.28
r_nbd_other	0.26
r_nbd_refined	0.231
r_symmetry_vdw_refined	0.15
r_symmetry_hbond_refined	0.149
r_xyhbond_nbd_refined	0.139
r_chiral_restr	0.112
r_nbtor_other	0.086
r_bond_refined_d	0.015
r_gen_planes_refined	0.01
r_gen_planes_other	0.008
r_bond_other_d	0.003
r_dihedral_angle_2_deg
r_dihedral_angle_3_deg
r_dihedral_angle_4_deg
r_nbtor_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_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

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2199
Nucleic Acid Atoms
Solvent Atoms	495
Heterogen Atoms	51

Software

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