3E2X

H. influenzae beta-carbonic anhydrase, variant V47A

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2A8D	PDB ENTRY 2A8D

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	277	0.1 M HEPES, 1.7 M ammonium sulfate, 4% PEG 400, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.2	44.04

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 48.141	α = 90
b = 133.317	β = 90
c = 143.892	γ = 90

Symmetry
Space Group	I 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	CCD	ADSC QUANTUM 210		2007-02-28	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	CHESS BEAMLINE F1	0.974	CHESS	F1

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	2.55	38.322	95.7	0.094	0.094	13.8	4		14811

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	2.55	2.69	82		0.482	0.482	1.6	3.2	1799

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 2A8D	2.55	33.98	14808	14808	743	95.15	0.214	0.214	0.211	0.283	RANDOM	48.095

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]
0.08			0.19		-0.27

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.895
r_dihedral_angle_3_deg	19.662
r_dihedral_angle_4_deg	18.9
r_dihedral_angle_1_deg	7.483
r_scangle_it	2.077
r_angle_refined_deg	1.433
r_scbond_it	1.382
r_angle_other_deg	0.944
r_mcangle_it	0.876
r_mcbond_it	0.696
r_symmetry_vdw_other	0.274
r_xyhbond_nbd_refined	0.24
r_nbd_refined	0.234
r_nbd_other	0.199
r_nbtor_refined	0.18
r_symmetry_vdw_refined	0.152
r_symmetry_hbond_refined	0.101
r_mcbond_other	0.097
r_nbtor_other	0.091
r_chiral_restr	0.077
r_xyhbond_nbd_other	0.037
r_bond_refined_d	0.013
r_gen_planes_refined	0.005
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2920
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms	27

Software

Software
Software Name	Purpose
MOSFLM	data reduction
SCALA	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction