4GZI

Active-site mutant of potato endo-1,3-beta-glucanase in complex with laminaratriose

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.6	292	0.1 M sodium citrate, 0.2 M ammonium acetate, 24% PEG 8000, 0.2 mM laminarahexose, streak seeding, pH 5.6, VAPOR DIFFUSION, HANGING DROP, temperature 292K

Crystal Properties
Matthews coefficient	Solvent content
2.09	41.13

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 54.895	α = 90
b = 49.273	β = 98.38
c = 57.075	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	100	IMAGE PLATE	MAR555 FLAT PANEL	mirrors	2006-07-02	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	EMBL/DESY, HAMBURG BEAMLINE X11	0.81620	EMBL/DESY, HAMBURG	X11

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	1.68	30	99	0.069	23.2	6.2	34231	34231		-3	24.6

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	1.68	1.74	92.7		0.264	5.1	4.8	3131

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (I)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	R-FREE	PDB ENTRY 3UR7	1.68	20	-3	33126	33126	1076	99.04	0.1375	0.1375	0.1364	0.1713	RANDOM	17.54

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]
-0.06		-1.05	-0.82		0.58

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.25
r_dihedral_angle_4_deg	15.453
r_dihedral_angle_3_deg	11.751
r_dihedral_angle_1_deg	6.233
r_scangle_it	3.885
r_scbond_it	2.769
r_angle_refined_deg	1.567
r_mcangle_it	1.55
r_mcbond_it	1.363
r_angle_other_deg	0.884
r_mcbond_other	0.303
r_symmetry_vdw_other	0.225
r_nbd_refined	0.215
r_nbtor_refined	0.184
r_nbd_other	0.177
r_symmetry_vdw_refined	0.135
r_xyhbond_nbd_refined	0.128
r_symmetry_hbond_refined	0.116
r_chiral_restr	0.11
r_nbtor_other	0.102
r_bond_refined_d	0.017
r_gen_planes_refined	0.008
r_bond_other_d	0.002
r_gen_planes_other	0.001
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_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2509
Nucleic Acid Atoms
Solvent Atoms	338
Heterogen Atoms	34

Software

Software
Software Name	Purpose
MAR345dtb	data collection
MOLREP	phasing
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling