2DKV

Crystal structure of class I chitinase from Oryza sativa L. japonica

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	293	8%(w/v) PEG 20000, 0.1M MES, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.08	40.94

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 66.452	α = 90
b = 66.452	β = 90
c = 123.636	γ = 90

Symmetry
Space Group	P 43 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	95	CCD	ADSC QUANTUM 4		2004-12-04	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	PHOTON FACTORY BEAMLINE BL-6A	1.0000	Photon Factory	BL-6A

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	2	33.22	99.8	0.05	0.05	10.1	13.7	19363	19363			25.237

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2	2.05	99.8		0.238	0.238	3.2	13.8	1381

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	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	SAD	THROUGHOUT	2	33.22	19363	18386	976	100	0.17717	0.17717	0.17478	0.22345	RANDOM	25.254

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]
0.52			0.52		-1.04

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.758
r_dihedral_angle_4_deg	17.679
r_dihedral_angle_3_deg	13.414
r_dihedral_angle_1_deg	6.016
r_scangle_it	3.15
r_scbond_it	2.188
r_angle_refined_deg	1.568
r_mcangle_it	1.508
r_mcbond_it	1.222
r_angle_other_deg	0.924
r_mcbond_other	0.257
r_nbd_refined	0.222
r_symmetry_vdw_other	0.211
r_nbd_other	0.194
r_nbtor_refined	0.189
r_symmetry_hbond_refined	0.175
r_symmetry_vdw_refined	0.157
r_xyhbond_nbd_refined	0.126
r_chiral_restr	0.098
r_nbtor_other	0.087
r_bond_refined_d	0.017
r_gen_planes_refined	0.008
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2148
Nucleic Acid Atoms
Solvent Atoms	150
Heterogen Atoms	40

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
CCP4	data scaling
SOLVE	phasing