4KNM

Crystal structure of human carbonic anhydrase isozyme XIII with 2-Chloro-4-{[(4,6-dimethylpyrimidin-2-yl)sulfanyl]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	5	291	0.1M sodium citrate (pH 5.5), 0.1M sodium acetate (pH 4.5), 30% PEG4000, VAPOR DIFFUSION, SITTING DROP, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
2	39.4

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 57.591	α = 90
b = 58.165	β = 92.16
c = 71.075	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	IMAGE PLATE	RIGAKU RAXIS IV++		2011-10-02	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU MICROMAX-007 HF	1.5418

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	1.85	20.542	99.7	0.083	0.083	16.1	4.2		37114			25.023

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	1.9	2	99		0.467	0.467	0.62	0.3	1.3	4	5374

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	1.9	20.46	37099	37099	3653	99.74	0.184	0.184	0.178	0.235	RANDOM	21.671

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		0.8	-0.36		0.73

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.93
r_dihedral_angle_3_deg	15.282
r_dihedral_angle_4_deg	13.4
r_dihedral_angle_1_deg	7.318
r_scangle_it	4.251
r_scbond_it	2.927
r_angle_refined_deg	1.988
r_mcangle_it	1.912
r_mcbond_it	1.192
r_nbtor_refined	0.307

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.93
r_dihedral_angle_3_deg	15.282
r_dihedral_angle_4_deg	13.4
r_dihedral_angle_1_deg	7.318
r_scangle_it	4.251
r_scbond_it	2.927
r_angle_refined_deg	1.988
r_mcangle_it	1.912
r_mcbond_it	1.192
r_nbtor_refined	0.307
r_symmetry_vdw_refined	0.244
r_nbd_refined	0.21
r_symmetry_hbond_refined	0.179
r_metal_ion_refined	0.161
r_xyhbond_nbd_refined	0.159
r_chiral_restr	0.146
r_bond_refined_d	0.023
r_gen_planes_refined	0.01

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4116
Nucleic Acid Atoms
Solvent Atoms	338
Heterogen Atoms	58

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling
PDB_EXTRACT	data extraction
DNA	data collection
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 R01GM157729.