3E11

Crystal structure of a predicted zincin-like metalloprotease (acel_2062) from acidothermus cellulolyticus 11b at 1.80 A resolution

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.17	277	24.0% polyethylene glycol 8000, 0.167M calcium acetate, 0.1M MES pH 6.17, VAPOR DIFFUSION,SITTING DROP,NANODROP, temperature 277K, VAPOR DIFFUSION, SITTING DROP

Crystal Properties
Matthews coefficient	Solvent content
2.07	40.54

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 39.03	α = 90
b = 58.82	β = 93.51
c = 46.93	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	100	CCD	MARMOSAIC 325 mm CCD	Flat mirror (vertical focusing)	2008-05-13	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL11-1	0.97949,0.91837,0.97879	SSRL	BL11-1

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	1.8	29.437	95.3	0.063				19523		-3	17.514

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	1.8	1.86	94.6		0.48	1.7

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	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	MAD	THROUGHOUT	1.8	29.437	19518	1004	98.99	0.176	0.175	0.204	RANDOM	11.273

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]
0.86		0.07	-0.15		-0.69

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.589
r_dihedral_angle_4_deg	20.942
r_dihedral_angle_3_deg	12.021
r_dihedral_angle_1_deg	5.849
r_scangle_it	2.902
r_scbond_it	1.933
r_angle_refined_deg	1.386
r_mcangle_it	1.216
r_angle_other_deg	0.818
r_mcbond_it	0.802
r_symmetry_vdw_other	0.251
r_nbd_refined	0.231
r_mcbond_other	0.204
r_symmetry_vdw_refined	0.2
r_metal_ion_refined	0.198
r_symmetry_hbond_refined	0.189
r_nbd_other	0.188
r_xyhbond_nbd_refined	0.184
r_nbtor_refined	0.179
r_nbtor_other	0.08
r_chiral_restr	0.076
r_bond_refined_d	0.014
r_gen_planes_refined	0.006
r_bond_other_d	0.002
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1791
Nucleic Acid Atoms
Solvent Atoms	193
Heterogen Atoms	10

Software

Software
Software Name	Purpose
REFMAC	refinement
PHENIX	refinement
SHELX	phasing
MolProbity	model building
XSCALE	data scaling
PDB_EXTRACT	data extraction
XDS	data reduction
SHELXD	phasing
autoSHARP	phasing