7QNV

human carbonic anhydrase II bound to 3-methylbenzoselenoate

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8	293	1.5 M sodium citrate, 0.1 M Tris pH 8.0

Crystal Properties
Matthews coefficient	Solvent content
2.1	41.31

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 42.43	α = 90
b = 41.42	β = 104.42
c = 72.13	γ = 90

Symmetry
Space Group	P 1 21 1

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 PILATUS 6M		2021-11-03	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ELETTRA BEAMLINE 11.2C	0.971700	ELETTRA	11.2C

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	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	1.278	69.858	88.2	0.12	0.13	0.991	10.62	5.6		55632

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.278	1.31	40.5		0.635	0.776	0.651	2.32	2.95

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	NONE	4FIK	1.278	69.858	55632	2723	88.243	0.164	0.1635	0.1839	11.008

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]
-0.015		-0.132	0.289		-0.182

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.157
r_dihedral_angle_4_deg	22.858
r_dihedral_angle_3_deg	12.541
r_dihedral_angle_1_deg	7.219
r_lrange_it	4.174
r_lrange_other	4.174
r_scangle_it	3.135
r_scangle_other	3.134
r_scbond_it	2.077
r_scbond_other	2.076
r_mcangle_other	1.969
r_mcangle_it	1.968
r_angle_refined_deg	1.944
r_angle_other_deg	1.459
r_mcbond_it	1.282
r_mcbond_other	1.277
r_nbd_refined	0.24
r_symmetry_nbd_refined	0.211
r_symmetry_nbd_other	0.195
r_nbtor_refined	0.179
r_nbd_other	0.177
r_xyhbond_nbd_refined	0.141
r_symmetry_xyhbond_nbd_refined	0.134
r_chiral_restr	0.099
r_symmetry_nbtor_other	0.085
r_xyhbond_nbd_other	0.041
r_bond_refined_d	0.014
r_metal_ion_refined	0.014
r_gen_planes_refined	0.011
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2058
Nucleic Acid Atoms
Solvent Atoms	233
Heterogen Atoms	27

Software

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