3E3F

H. influenzae beta-carbonic anhydrase, variant V47A with 100 mM bicarbonate

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 M sodium potassium tartrate, 100 mM sodium bicarbonate, 12 mg/mL protein, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
3.1	60.29

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 83.897	α = 90
b = 83.897	β = 90
c = 184.867	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		2007-04-14	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	CHESS BEAMLINE F2	0.980	CHESS	F2

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	2.3	76.472	99.2	0.066	0.066	22.6	8.2		30001

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	2.3	2.42	94.6		0.367	0.367	2.1	4	4077

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	2.3	28.93	29926	29926	1523	99.13	0.195	0.195	0.193	0.23	RANDOM	48.922

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]
0.59			0.59		-1.18

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	41.785
r_dihedral_angle_4_deg	20.729
r_dihedral_angle_3_deg	18.639
r_dihedral_angle_1_deg	6.839
r_scangle_it	2.983
r_scbond_it	2.192
r_angle_refined_deg	1.566
r_mcangle_it	1.363
r_mcbond_it	1.132
r_angle_other_deg	0.941
r_symmetry_vdw_other	0.293
r_nbd_refined	0.23
r_symmetry_hbond_refined	0.218
r_metal_ion_refined	0.204
r_nbd_other	0.198
r_xyhbond_nbd_refined	0.19
r_mcbond_other	0.184
r_nbtor_refined	0.181
r_nbtor_other	0.092
r_chiral_restr	0.087
r_symmetry_vdw_refined	0.081
r_xyhbond_nbd_other	0.036
r_bond_refined_d	0.017
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	2894
Nucleic Acid Atoms
Solvent Atoms	84
Heterogen Atoms	22

Software

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