6QN6

Three dimensional structure of human carbonic anhydrase IX in complex with benzenesulfonamide

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	6FE2

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	4.5	294	CRYSTALLIZATION CONDITIONS: 1.0 M DI-AMMONIUM HYDROGEN PHOSPHATE, 0.1 M SODIUM ACETATE PH 4.5, PROTEIN 10 MG/ML, 5-10 MM INHIBITOR (STOCK SOLUTION WAS 100 MM INHIBITOR DISSOLVED IN 100% DIMETHYL SULFOXIDE)

Crystal Properties
Matthews coefficient	Solvent content
3.43	64.16

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 152.192	α = 90
b = 152.192	β = 90
c = 172.327	γ = 120

Symmetry
Space Group	H 3

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		2018-10-19	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	MAX IV BEAMLINE BioMAX	0.97776	MAX IV	BioMAX

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	2.144	104	100	0.125	8.2	5.9		81681

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.144	2.181	100		2.282	0.8	6

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	6FE2	2.25	47.9	67165	3447	99.98	0.17316	0.17082	0.21718	RANDOM	48.769

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]
0.56	0.28		0.56		-1.83

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.946
r_dihedral_angle_4_deg	20.003
r_dihedral_angle_3_deg	15.189
r_long_range_B_other	9.14
r_long_range_B_refined	9.124
r_dihedral_angle_1_deg	7.483
r_scangle_other	7.435
r_mcangle_it	6.138
r_mcangle_other	6.138
r_scbond_it	5.242
r_scbond_other	5.241
r_mcbond_other	4.405
r_mcbond_it	4.404
r_angle_refined_deg	1.749
r_angle_other_deg	1.283
r_chiral_restr	0.075
r_bond_refined_d	0.01
r_gen_planes_refined	0.009
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7742
Nucleic Acid Atoms
Solvent Atoms	458
Heterogen Atoms	112

Software

Software
Software Name	Purpose
REFMAC	refinement