3E31

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	295	0.1 M HEPES, 0.7 sodium potassium tartrate, 12 mg/mL protein, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
3.04	59.56

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 82.277	α = 90
b = 82.277	β = 90
c = 188.783	γ = 90

Symmetry
Space Group	P 41 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 210		2007-03-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	CHESS BEAMLINE F2	0.974	CHESS	F2

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	2.95	37.77	99.9	0.082	34.2	16.8		14391

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	2.95	3.11	100		0.493	5.8	5.8	2033

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	2.95	37.72	14323	14323	718	99.87	0.199	0.199	0.197	0.247	RANDOM	42.863

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]
-0.17			-0.17		0.34

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.726
r_dihedral_angle_3_deg	19.848
r_dihedral_angle_4_deg	18.289
r_dihedral_angle_1_deg	8.179
r_scangle_it	2.404
r_scbond_it	1.736
r_angle_refined_deg	1.588
r_mcangle_it	1.256
r_mcbond_it	1.069
r_angle_other_deg	0.959
r_symmetry_vdw_other	0.339
r_nbd_refined	0.275
r_symmetry_hbond_refined	0.274
r_nbd_other	0.207
r_symmetry_vdw_refined	0.207
r_nbtor_refined	0.2
r_xyhbond_nbd_refined	0.2
r_mcbond_other	0.113
r_nbtor_other	0.095
r_chiral_restr	0.086
r_xyhbond_nbd_other	0.024
r_bond_refined_d	0.016
r_gen_planes_refined	0.005
r_bond_other_d	0.002
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2887
Nucleic Acid Atoms
Solvent Atoms	16
Heterogen Atoms	2

Software

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