2ZEX | pdb_00002zex

Family 16 carbohydrate binding module

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2ZEW

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.3	298	30% PEG3350, 100mM Tris-HCL pH8.3, 200mM MgCl2, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.14	42.46

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 32.466	α = 62.03
b = 48.829	β = 84.88
c = 49.356	γ = 85.95

Symmetry
Space Group	P 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	MARMOSAIC 225 mm CCD		2006-12-22	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 22-BM		APS	22-BM

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym 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	1.18	50	94.2	0.036	33.3	3.7		82565

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.18	1.22	87.5		0.208	6	3.5	7690

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2ZEW	1.2	20	75010	3937	94.75	0.15679	0.15562	0.16	0.17864	0.18	RANDOM	15.038

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]
-0.15	0.06	0.47	-0.3	-0.06	0.42

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.066
r_dihedral_angle_3_deg	11.468
r_dihedral_angle_1_deg	7.084
r_sphericity_free	3.377
r_sphericity_bonded	3.056
r_scangle_it	2.65
r_scbond_it	2.009
r_mcangle_it	1.49
r_rigid_bond_restr	1.252
r_angle_refined_deg	1.241
r_mcbond_it	0.972
r_nbtor_refined	0.314
r_symmetry_vdw_refined	0.224
r_nbd_refined	0.202
r_symmetry_hbond_refined	0.125
r_xyhbond_nbd_refined	0.109
r_angle_other_deg	0.084
r_chiral_restr	0.084
r_nbtor_other	0.077
r_metal_ion_refined	0.074
r_bond_refined_d	0.008
r_gen_planes_refined	0.005
r_bond_other_d
r_gen_planes_other

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2261
Nucleic Acid Atoms
Solvent Atoms	520
Heterogen Atoms	114

Software

Software
Software Name	Purpose
REFMAC	refinement
MAR345dtb	data collection
HKL-2000	data reduction
HKL-2000	data scaling
PHASER	phasing