6FE2

Three dimensional structure of human carbonic anhydrase IX

X-RAY DIFFRACTION

---

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3IAI

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	4.5	294	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
3.42	64.04

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 152.67	α = 90
b = 152.67	β = 90
c = 170.7	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 PILATUS 6M		2016-04-02	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	BESSY BEAMLINE 14.1	0.91841	BESSY	14.1

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	1.87	31.7	99.3	0.052	9.9	2.7		121775			26.8

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	1.87	1.97	99.1		0.476	2	2.7

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	3IAI	1.87	31.7	115490	6280	99.29	0.17337	0.17193	0.19894	RANDOM	34.494

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]
0.35	0.17		0.35		-1.13

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.065
r_dihedral_angle_4_deg	14.785
r_dihedral_angle_3_deg	11.923
r_long_range_B_refined	6.47
r_long_range_B_other	6.263
r_dihedral_angle_1_deg	5.84
r_scangle_other	4.039
r_mcangle_it	3.189
r_mcangle_other	3.188
r_scbond_it	2.52
r_scbond_other	2.519
r_mcbond_it	2.036
r_mcbond_other	2.035
r_angle_refined_deg	1.376
r_angle_other_deg	0.901
r_chiral_restr	0.079
r_bond_refined_d	0.01
r_gen_planes_refined	0.007
r_bond_other_d	0.002
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7656
Nucleic Acid Atoms
Solvent Atoms	763
Heterogen Atoms	4

Software

Software
Software Name	Purpose
REFMAC	refinement
SCALA	data scaling