3E1W | pdb_00003e1w

H. influenzae beta-carbonic anhydrase, variant D44N in 100 mM sodium 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	6.5	295	0.1 M MES, 0.8 M sodium acetate, 100 mM sodium bicarbonate, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
2.66	53.84

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 78.45	α = 90
b = 78.45	β = 90
c = 182.104	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		2007-04-11	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	CHESS BEAMLINE F2	0.950	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	2.6	72.257	99.3	0.108	0.108	23.5	9.7	176697	18278

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	2.6	2.74	96		0.538	0.538	1.4	6.4	2500

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 2A8D	2.6	29.72	18161	929	99.51	0.216	0.215	0.23	0.239	0.25	RANDOM	63.128

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]
0.04			0.04		-0.09

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.957
r_dihedral_angle_3_deg	19.161
r_dihedral_angle_4_deg	18.693
r_dihedral_angle_1_deg	7.28
r_scangle_it	1.856
r_angle_refined_deg	1.457
r_scbond_it	1.234
r_mcangle_it	1
r_angle_other_deg	0.866
r_mcbond_it	0.816
r_symmetry_vdw_other	0.3
r_nbd_refined	0.253
r_nbd_other	0.224
r_symmetry_vdw_refined	0.216
r_symmetry_hbond_refined	0.205
r_nbtor_refined	0.203
r_xyhbond_nbd_refined	0.161
r_mcbond_other	0.099
r_nbtor_other	0.096
r_chiral_restr	0.071
r_xyhbond_nbd_other	0.049
r_bond_refined_d	0.014
r_gen_planes_refined	0.004
r_bond_other_d	0.002
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2890
Nucleic Acid Atoms
Solvent Atoms	13
Heterogen Atoms	2

Software

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