6G7A

Crystal structure of human carbonic anhydrase isozyme XII 2-(benzylamino)-4-chloro-N-(2-hydroxyethyl)-5-sulfamoyl-benzamide

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	5LL9

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.2	291	Crystallization buffer: 0.1M ammonium citrate (pH 7.2), 0.2 M ammonium sulfate and 26% PEG4000

Crystal Properties
Matthews coefficient	Solvent content
2.06	39.9

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 77.296	α = 90
b = 73.925	β = 108.92
c = 91.217	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 6M		2015-06-26	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	PETRA III, EMBL c/o DESY BEAMLINE P13 (MX1)	1.033200	PETRA III, EMBL c/o DESY	P13 (MX1)

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym 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	1.42	86.29	94.9	0.036	0.046	0.017	24.8	6.8		173178

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Rrim I (All)	Rpim I (All)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.42	1.5	77.2		0.186	0.186	0.227	0.089	4.1	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	5LL9	1.42	73.12	173152	17232	94.65	0.1558	0.1525	0.1859	RANDOM	17.0153

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]
-0.06		0.2	0.16		-0.19

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.725
r_dihedral_angle_4_deg	14.818
r_dihedral_angle_3_deg	13.138
r_dihedral_angle_1_deg	6.904
r_scbond_it	3.081
r_mcangle_it	2.52
r_angle_refined_deg	2.332
r_mcbond_it	1.754
r_chiral_restr	0.167
r_bond_refined_d	0.025

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.725
r_dihedral_angle_4_deg	14.818
r_dihedral_angle_3_deg	13.138
r_dihedral_angle_1_deg	6.904
r_scbond_it	3.081
r_mcangle_it	2.52
r_angle_refined_deg	2.332
r_mcbond_it	1.754
r_chiral_restr	0.167
r_bond_refined_d	0.025
r_gen_planes_refined	0.015

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	8408
Nucleic Acid Atoms
Solvent Atoms	1356
Heterogen Atoms	152

Software

Software
Software Name	Purpose
REFMAC	refinement
SCALA	data scaling
PDB_EXTRACT	data extraction
XDS	data reduction
MOLREP	phasing
Coot	model building

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 R01GM157729.