8ZWV

The Crystal Structure of carbonic anhydrase II from Biortus.

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	7ONV

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		293	0.2M CaCl2, 0.1M Hepes pH7.5, 30% PEG4,000

Crystal Properties
Matthews coefficient	Solvent content
1.94	36.63

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 42.525	α = 90
b = 72.204	β = 90
c = 74.059	γ = 90

Symmetry
Space Group	P 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	PIXEL	DECTRIS EIGER X 16M		2023-09-16	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	AUSTRALIAN SYNCHROTRON BEAMLINE MX2	0.95373	Australian Synchrotron	MX2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	CC (Half)	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	1.5	42.53	100	0.999	15.2	8.4		37316

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.5	1.53			0.825

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 (All)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	7ONV	1.5	36.905	37255	1903	99.928	0.154	0.1523	0.1874	16.999

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]
-0.931			1.73		-0.799

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	16.046
r_dihedral_angle_6_deg	15.845
r_dihedral_angle_3_deg	12.719
r_dihedral_angle_1_deg	6.925
r_lrange_it	5.954
r_lrange_other	5.747
r_scangle_it	5.056
r_scangle_other	5.054
r_scbond_it	3.349
r_scbond_other	3.348
r_mcangle_other	2.28
r_mcangle_it	2.27
r_angle_refined_deg	1.879
r_mcbond_it	1.568
r_mcbond_other	1.561
r_angle_other_deg	0.634
r_symmetry_xyhbond_nbd_refined	0.244
r_nbd_refined	0.202
r_symmetry_nbd_other	0.19
r_nbtor_refined	0.18
r_xyhbond_nbd_refined	0.179
r_metal_ion_refined	0.16
r_nbd_other	0.156
r_symmetry_nbd_refined	0.111
r_chiral_restr	0.096
r_symmetry_nbtor_other	0.087
r_bond_refined_d	0.01
r_gen_planes_refined	0.01
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2073
Nucleic Acid Atoms
Solvent Atoms	244
Heterogen Atoms	18

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
Aimless	data scaling
PHASER	phasing