7MKS

Crystal structure of the GH12 domain from Acidothermus cellulolyticus GuxA bound to cellobiose

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		298	10% PEG8000, 0.2 M zinc chloride, 0.1 M sodium cacodylate

Crystal Properties
Matthews coefficient	Solvent content
3.14	60.82

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 66.235	α = 90
b = 66.235	β = 90
c = 127.176	γ = 120

Symmetry
Space Group	P 31 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	CCD	Bruker Platinum 135		2008-02-28	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	BRUKER X8 PROTEUM	1.542

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
1	1.85	34.1	99.7	0.038	0.998	17.2	1.9		28178

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)
1	1.85	1.89	95.5		0.292	0.755	2.8	1.7

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 (All)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	PDB entry 3B7M	1.85	34.1	28165	1418	99.565	0.134	0.1328	0.1649	13.253

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]
-0.156	-0.078		-0.156		0.506

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	39.094
r_dihedral_angle_4_deg	24.322
r_dihedral_angle_1_deg	15.337
r_dihedral_angle_3_deg	11.494
r_dihedral_angle_other_3_deg	7.112
r_lrange_it	5.377
r_lrange_other	5.376
r_scangle_it	2.767
r_scangle_other	2.766
r_mcangle_it	1.966
r_mcangle_other	1.965
r_scbond_it	1.901
r_scbond_other	1.9
r_angle_refined_deg	1.776
r_angle_other_deg	1.61
r_mcbond_it	1.307
r_mcbond_other	1.279
r_symmetry_nbd_refined	0.442
r_nbd_other	0.344
r_symmetry_xyhbond_nbd_refined	0.241
r_nbd_refined	0.223
r_symmetry_nbd_other	0.194
r_xyhbond_nbd_refined	0.188
r_metal_ion_refined	0.176
r_nbtor_refined	0.167
r_symmetry_nbtor_other	0.089
r_chiral_restr	0.085
r_symmetry_metal_ion_refined	0.018
r_bond_refined_d	0.012
r_gen_planes_refined	0.011
r_gen_planes_other	0.002
r_bond_other_d	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1773
Nucleic Acid Atoms
Solvent Atoms	328
Heterogen Atoms	45

Software

Software
Software Name	Purpose
REFMAC	refinement
PROTEUM PLUS	data reduction
PROTEUM PLUS	data scaling
MOLREP	phasing