7A3H

NATIVE ENDOGLUCANASE CEL5A CATALYTIC CORE DOMAIN AT 0.95 ANGSTROMS RESOLUTION

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1A3H

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		5.5		pH 5.5

Crystal Properties
Matthews coefficient	Solvent content
1.95	36.4

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 54.71	α = 90
b = 69.57	β = 90
c = 77.04	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	MARRESEARCH		1997-03-16	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SRS BEAMLINE PX9.6		SRS	PX9.6

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	0.95	20	97	0.043	0.043	31	5		170547			6.7

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)
1	0.95	0.97	83.8		0.3	0.3	3.5	4

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	THROUGHOUT	1A3H	0.95	20	176480	8854	99.6	0.11	0.13	RANDOM

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_transverse_tor	29
p_staggered_tor	12.4
p_planar_tor	6.1
p_scangle_it	3.7
p_scbond_it	2.7
p_mcangle_it	2.3
p_mcbond_it	1.7
p_multtor_nbd	0.262
p_singtor_nbd	0.171
p_chiral_restr	0.116
p_xyhbond_nbd	0.091
p_planar_d	0.036
p_angle_d	0.027
p_plane_restr	0.023
p_bond_d	0.014
p_angle_deg
p_hb_or_metal_coord
p_xhyhbond_nbd
p_orthonormal_tor
p_special_tor

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2377
Nucleic Acid Atoms
Solvent Atoms	483
Heterogen Atoms	9

Software

Software
Software Name	Purpose
CCP4	model building
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling
CCP4	phasing