1ZV9

Crystal structure analysis of a type II cohesin domain from the cellulosome of Acetivibrio cellulolyticus- SeMet derivative

X-RAY DIFFRACTION

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Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	6	293	Ammonium sulfate, pH 6, vapor diffusion, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.5	51.4

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 53.858	α = 90
b = 53.858	β = 90
c = 111.964	γ = 120

Symmetry
Space Group	P 31 2 1

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 4	Mirrors	2003-06-16	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-2	0.933	ESRF	ID14-2

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	1.28	50	98.9	0.065	0.065	24.2	12.8	49349	48796		-3	19.2

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)
	1.28	1.3	97.1		0.49	0.49	2.6	10.2	2340

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1QZN	1.28	46.63	48796	48747	2462	98.71	0.118	0.118	0.116	0.158	RANDOM	12.949

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]
-0.26	-0.13		-0.26		0.39

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.055
r_scangle_it	13.037
r_scbond_it	11.196
r_dihedral_angle_3_deg	9.849
r_mcangle_it	7.389
r_mcbond_it	6.832
r_dihedral_angle_1_deg	6.505
r_dihedral_angle_4_deg	6.027
r_rigid_bond_restr	5.66
r_mcbond_other	3.418
r_angle_refined_deg	1.472
r_angle_other_deg	0.989
r_symmetry_vdw_refined	0.3
r_symmetry_vdw_other	0.278
r_nbd_refined	0.236
r_nbd_other	0.198
r_xyhbond_nbd_refined	0.174
r_nbtor_refined	0.164
r_symmetry_hbond_refined	0.155
r_chiral_restr	0.087
r_nbtor_other	0.083
r_bond_refined_d	0.015
r_gen_planes_refined	0.007
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1328
Nucleic Acid Atoms
Solvent Atoms	316
Heterogen Atoms	32

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
ProDC	data collection