1OVW

ENDOGLUCANASE I COMPLEXED WITH NON-HYDROLYSABLE SUBSTRATE ANALOGUE

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	Other		NATIVE STRUCTURE (2 MOLECULES IN ASYMMETRIC UNIT)

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5		22 % PEG 8K, 0.2 M MAGNESIUM CHLORIDE, PH 6.5 FOR 0.1 M MOPS METHOD: HANGING DROP VAPOUR DIFFUSION THE NATIVE CRYSTALS WERE SOAKED FOR 1 HOUR IN STABILISING SOLUTION CONTAINING 5 MM OF THIO-CELLOPENTAOSE, vapor diffusion - hanging drop

Crystal Properties
Matthews coefficient	Solvent content
2.1	40.8

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 68.155	α = 90
b = 78.279	β = 96.89
c = 142.461	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	120	IMAGE PLATE	RIGAKU RAXIS IIC		1995-08-29	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE

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	2.7	30	94.7	0.118	7.4	2.1		38998			37.51

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	2.7	2.84	94.96		0.369	2.49	1.05

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-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R	NATIVE STRUCTURE (2 MOLECULES IN ASYMMETRIC UNIT)	2.7	15	36855	1952	89.49	0.197	0.284	RANDOM	24.31

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]

RMS Deviations
Key	Refinement Restraint Deviation
p_staggered_tor	22.2
p_transverse_tor	21.6
p_scangle_it	4.133
p_planar_tor	3.9
p_scbond_it	2.994
p_mcangle_it	2.233
p_mcbond_it	1.451
p_multtor_nbd	0.247
p_xyhbond_nbd	0.222
p_singtor_nbd	0.185
p_chiral_restr	0.076
p_angle_d	0.038
p_planar_d	0.038
p_bond_d	0.012
p_angle_deg
p_hb_or_metal_coord
p_plane_restr
p_xhyhbond_nbd
p_orthonormal_tor
p_special_tor

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	12092
Nucleic Acid Atoms
Solvent Atoms	1072
Heterogen Atoms	248

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
AMoRE	phasing
REFMAC	refinement