4KNN

Crystal structure of human carbonic anhydrase isozyme XIII with 2-Chloro-4-[(pyrimidin-2-ylsulfanyl)acetyl]benzenesulfonamide

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2NNO

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6	291	0.1M ammonium citrate (pH 7.0), 0.1M sodium acetate (pH 4.5) and 26% PEG 3350, VAPOR DIFFUSION, SITTING DROP, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
2.2	44.2

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 56.182	α = 90
b = 57.47	β = 90
c = 159.467	γ = 90

Symmetry
Space Group	P 21 21 21

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		2012-11-30	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	PETRA III, EMBL c/o DESY BEAMLINE P14 (MX2)	0.826606	PETRA III, EMBL c/o DESY	P14 (MX2)

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym 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	1.404	79.733	98.3	0.038	0.038	26.4	6.6		99914			14.992

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	1.4	1.48	92.6		0.262	0.262	0.31	0.12	3	6.1	13550

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2NNO	1.404	54.07	99819	99819	9987	98.25	0.169	0.169	0.166	0.191	RANDOM	17.534

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]
0.31			0.32		-0.63

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.529
r_dihedral_angle_4_deg	16.86
r_dihedral_angle_3_deg	13.218
r_dihedral_angle_1_deg	6.778
r_scangle_it	4.783
r_scbond_it	3.202
r_mcangle_it	2.814
r_angle_refined_deg	2.577
r_mcbond_it	1.833
r_nbtor_refined	0.32

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.529
r_dihedral_angle_4_deg	16.86
r_dihedral_angle_3_deg	13.218
r_dihedral_angle_1_deg	6.778
r_scangle_it	4.783
r_scbond_it	3.202
r_mcangle_it	2.814
r_angle_refined_deg	2.577
r_mcbond_it	1.833
r_nbtor_refined	0.32
r_symmetry_vdw_refined	0.226
r_nbd_refined	0.216
r_chiral_restr	0.178
r_xyhbond_nbd_refined	0.167
r_metal_ion_refined	0.162
r_symmetry_hbond_refined	0.147
r_bond_refined_d	0.028
r_gen_planes_refined	0.015

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4108
Nucleic Acid Atoms
Solvent Atoms	568
Heterogen Atoms	101

Software

Software
Software Name	Purpose
REFMAC	refinement
SCALA	data scaling
PDB_EXTRACT	data extraction
DNA	data collection
XDS	data reduction
MOLREP	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.