2Z38

Crystal structure of chloride bound Brassica juncea chitinase catalytic module (Bjchi3)

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.6	295	25% mono methyl PEG 5000, 0.5M LiCl, 0.1M cacodylate buffer, pH 6.6, VAPOR DIFFUSION, SITTING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
2.1	40.2

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 48.475	α = 90
b = 49.195	β = 90
c = 100.907	γ = 90

Symmetry
Space Group	P 21 21 21

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	ADSC QUANTUM 4		2004-02-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-2	0.934	ESRF	ID14-2

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	1.8	30	99.7	0.112	19.7	6.8		23001

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)
	1.8	1.83	100		0.311		6.9	1125

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	PDB ENTRY 2Z37	1.8	27.63	22946	1382	100	0.157	0.155	0.198	RANDOM	13.079

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]
-0.43			-0.05		0.48

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.992
r_dihedral_angle_4_deg	17.861
r_dihedral_angle_3_deg	13.101
r_dihedral_angle_1_deg	4.826
r_scangle_it	4.123
r_scbond_it	2.744
r_mcangle_it	1.688
r_angle_refined_deg	1.156
r_mcbond_it	1.071
r_nbtor_refined	0.314

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.992
r_dihedral_angle_4_deg	17.861
r_dihedral_angle_3_deg	13.101
r_dihedral_angle_1_deg	4.826
r_scangle_it	4.123
r_scbond_it	2.744
r_mcangle_it	1.688
r_angle_refined_deg	1.156
r_mcbond_it	1.071
r_nbtor_refined	0.314
r_nbd_refined	0.199
r_symmetry_hbond_refined	0.198
r_symmetry_vdw_refined	0.157
r_xyhbond_nbd_refined	0.141
r_chiral_restr	0.09
r_bond_refined_d	0.01
r_gen_planes_refined	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1936
Nucleic Acid Atoms
Solvent Atoms	249
Heterogen Atoms	12

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
ADSC	data collection

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.