7CXW

Structural insights into novel mechanisms of inhibition of the major b-carbonic anhydrase CafB from the pathogenic fungus Aspergillus fumigatus (C116 flipped form)

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	4O1K

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		295	0.1 M Tris-HCl pH 7.0-8.5 28-30% (w/v) polyethylene glycol 2000 (PEG2000) 0.1 M magnesium acetate

Crystal Properties
Matthews coefficient	Solvent content
2.66	53.73

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 118.812	α = 90
b = 118.812	β = 90
c = 68.074	γ = 120

Symmetry
Space Group	P 32 2 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	80	CCD	ADSC QUANTUM 315r		2019-06-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	PAL/PLS BEAMLINE 5C (4A)	0.97926	PAL/PLS	5C (4A)

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	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	2.2	50	99.9	0.141	0.15	0.049	5.3	8.8		27978

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	2.2	2.28	99.4		0.743	0.807	0.313	0.896		6.4

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	4O1K	2.2	41.08	26517	1444	98.95	0.1762	0.1742	0.2144	RANDOM	47.749

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]
1.34	0.67		1.34		-4.34

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.957
r_dihedral_angle_4_deg	21.846
r_dihedral_angle_3_deg	15.104
r_dihedral_angle_1_deg	6.245
r_angle_refined_deg	1.499
r_angle_other_deg	1.335
r_chiral_restr	0.074
r_bond_refined_d	0.009
r_gen_planes_refined	0.007
r_bond_other_d	0.001

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.957
r_dihedral_angle_4_deg	21.846
r_dihedral_angle_3_deg	15.104
r_dihedral_angle_1_deg	6.245
r_angle_refined_deg	1.499
r_angle_other_deg	1.335
r_chiral_restr	0.074
r_bond_refined_d	0.009
r_gen_planes_refined	0.007
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3494
Nucleic Acid Atoms
Solvent Atoms	143
Heterogen Atoms	8

Software

Software
Software Name	Purpose
HKL-2000	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data reduction
PHASER	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.