3H3K

Structure of A. acidocaldarius cellulase CelA in complex with cellotetraose

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3GZK	PDB ENTRY 3GZK

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	293	50% MPD, 100mM Hepes, pH7, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.29	46.27

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 85.09	α = 90
b = 129.3	β = 90
c = 49.13	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	2008-10-31	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SOLEIL BEAMLINE PROXIMA 1	0.98	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	2.1	35	97.5	0.09	11.6		32389	31580	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)
	2.1	2.23	96.3		0.579	2.4		4963

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 3GZK	2.1	30.22	29997	1578	100	0.18805	0.18649	0.19	0.21727	0.22	RANDOM	23.041

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]
					0.01

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.899
r_dihedral_angle_3_deg	14.278
r_dihedral_angle_4_deg	14.034
r_dihedral_angle_1_deg	5.684
r_scangle_it	1.945
r_scbond_it	1.196
r_angle_refined_deg	1.114
r_angle_other_deg	1.005
r_mcangle_it	0.997
r_mcbond_it	0.581
r_symmetry_vdw_other	0.333
r_nbd_refined	0.196
r_nbd_other	0.184
r_nbtor_refined	0.175
r_symmetry_hbond_refined	0.157
r_xyhbond_nbd_refined	0.135
r_symmetry_vdw_refined	0.116
r_metal_ion_refined	0.113
r_chiral_restr	0.088
r_nbtor_other	0.087
r_mcbond_other	0.08
r_bond_refined_d	0.008
r_gen_planes_refined	0.003
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	169
Heterogen Atoms	75

Software

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