5MEL

Structure of an E333Q variant of the GH99 endo-alpha-mannanase from Bacteroides xylanisolvens in complex with Glc-alpha-1,3-(3R,4R,5R)-5-(hydroxymethyl)cyclohex-1,2-ene-3,4-diol

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	4UTF	modified 4UTF

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.4	292	3M sodium acetate, pH 7.4

Crystal Properties
Matthews coefficient	Solvent content
2.28	46.17

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 108.791	α = 90
b = 108.791	β = 90
c = 67.85	γ = 90

Symmetry
Space Group	I 4

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	PIXEL	DECTRIS PILATUS 2M		2014-10-23	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I04-1	0.92	Diamond	I04-1

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	1.2	39.54	98.7	0.059	0.999	15.3	7.9		121915			12.5

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	1.2	1.22	82.7		0.955	0.543	1.7	5.3

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	modified 4UTF	1.2	39.54	115855	6060	98.64	0.11948	0.11853	0.13743	RANDOM	17.21

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]
-0.64			-0.64		1.29

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.882
r_sphericity_free	26.258
r_dihedral_angle_4_deg	20.679
r_dihedral_angle_3_deg	12.172
r_sphericity_bonded	10.663
r_dihedral_angle_1_deg	8.441
r_long_range_B_refined	3.047
r_long_range_B_other	2.85
r_scangle_other	2.569
r_scbond_other	2.122
r_scbond_it	2.121
r_mcangle_other	1.981
r_mcangle_it	1.976
r_rigid_bond_restr	1.798
r_angle_refined_deg	1.586
r_mcbond_it	1.449
r_mcbond_other	1.431
r_angle_other_deg	1.059
r_chiral_restr	0.098
r_bond_refined_d	0.012
r_gen_planes_refined	0.011
r_bond_other_d	0.002
r_gen_planes_other	0.002
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_scangle_it

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2799
Nucleic Acid Atoms
Solvent Atoms	346
Heterogen Atoms	29

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
Aimless	data scaling
REFMAC	phasing