3H2W

Structure of A. acidocaldarius cellulase CelA in complex with cellobiose

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5	293	0.6M hexanediol, 100mM sodium acetate, pH5.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.28	46

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 84.892	α = 90
b = 129.398	β = 90
c = 48.965	γ = 90

Symmetry
Space Group	P 21 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	100	CCD	ADSC QUANTUM 315r	kirkpatrick baez	2008-10-10	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SOLEIL BEAMLINE PROXIMA 1	0.979	SOLEIL	PROXIMA 1

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	2.66	28	99.6	0.161	12.1	6	16129	16129	1	1

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)
	2.66	2.82	98.7		0.697	2.9	6	2504

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (I)	Cut-off Sigma (F)	Number Reflections (All)	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 3GZK	2.66	25.92	2	2	16129	15281	806	99.84	0.19591	0.19286	0.25421	RANDOM	24.857

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]
-0.02			0.01		0.01

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.315
r_dihedral_angle_3_deg	17.68
r_dihedral_angle_4_deg	17.011
r_dihedral_angle_1_deg	6.455
r_scangle_it	2.091
r_angle_refined_deg	1.401
r_scbond_it	1.297
r_mcangle_it	0.954
r_angle_other_deg	0.92
r_mcbond_it	0.565
r_symmetry_vdw_other	0.295
r_nbd_refined	0.219
r_symmetry_vdw_refined	0.203
r_metal_ion_refined	0.2
r_nbd_other	0.191
r_nbtor_refined	0.188
r_xyhbond_nbd_refined	0.161
r_symmetry_hbond_refined	0.117
r_nbtor_other	0.09
r_mcbond_other	0.085
r_chiral_restr	0.071
r_bond_refined_d	0.013
r_gen_planes_refined	0.004
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4086
Nucleic Acid Atoms
Solvent Atoms	45
Heterogen Atoms	39

Software

Software
Software Name	Purpose
JDirector	data collection
PHASER	phasing
REFMAC	refinement
XDS	data reduction
XDS	data scaling