1E6Z

CHITINASE B FROM SERRATIA MARCESCENS WILDTYPE IN COMPLEX WITH CATALYTIC INTERMEDIATE

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1E15	PDB ENTRY 1E15

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7		2.0M AMMONIUM SULFATE, 20% GLYCEROL, HEPES PH 7.0

Crystal Properties
Matthews coefficient	Solvent content
2.4	50.6

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 55.801	α = 90
b = 103.811	β = 90
c = 186.359	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	IMAGE PLATE	MAR scanner 345 mm plate		1999-11-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	EMBL/DESY, HAMBURG BEAMLINE X13		EMBL/DESY, HAMBURG	X13

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	1.99	50	92.8	0.091	9.5	2.8		197360			10.2

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	1.99	2.06	71.2		0.559	2.1	1.5

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 1E15	1.99	47.87	70231	1442	93.3	0.187	0.187	0.225	RANDOM	22.3

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]
2.33			2.27		-4.6

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	23.7
c_scangle_it	2.87
c_scbond_it	2.26
c_mcangle_it	2.07
c_angle_deg	1.5
c_mcbond_it	1.5
c_improper_angle_d	0.95
c_bond_d	0.01
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7819
Nucleic Acid Atoms
Solvent Atoms	933
Heterogen Atoms	92

Software

Software
Software Name	Purpose
CNS	refinement
DENZO	data reduction
SCALEPACK	data scaling
CNS	phasing