6SYB

Crystal structure of carbonic anhydrase 2 with (3aR,4S,9bS)-4-(2-chloro-4-hydroxyphenyl)-3a,4,5,9b-tetrahydro-3H-cyclopenta[c]quinoline-8-sulfonamide

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8	296	1.5 M sodium citrate, 50 mM Tris pH 8.0

Crystal Properties
Matthews coefficient	Solvent content
2.08	40.8

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 42.29	α = 90
b = 41.305	β = 104.4
c = 71.935	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 PILATUS3 S 6M		2019-09-16	M	SINGLE WAVELENGTH

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

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim 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	1.6	69.68	98.8	0.116	0.122	0.037	0.998	10.8	9.7		31710

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.6	1.63	92		0.912	0.999	0.403	0.675		5.9

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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	4FIK	1.6	69.68	30125	1544	98.61	0.1756	0.1736	0.2164	RANDOM	15.799

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]
0.05		-0.07	-0.6		0.52

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.091
r_dihedral_angle_4_deg	19.385
r_dihedral_angle_3_deg	15.257
r_dihedral_angle_1_deg	7.606
r_angle_refined_deg	1.729
r_angle_other_deg	1.398
r_chiral_restr	0.085
r_bond_refined_d	0.011
r_gen_planes_refined	0.01
r_bond_other_d	0.001

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.091
r_dihedral_angle_4_deg	19.385
r_dihedral_angle_3_deg	15.257
r_dihedral_angle_1_deg	7.606
r_angle_refined_deg	1.729
r_angle_other_deg	1.398
r_chiral_restr	0.085
r_bond_refined_d	0.011
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	2051
Nucleic Acid Atoms
Solvent Atoms	182
Heterogen Atoms	32

Software

Software
Software Name	Purpose
Aimless	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
XDS	data reduction
REFMAC	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.