3FFP

X ray structure of the complex between carbonic anhydrase II and LC inhibitors

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		277	100mM Tris-HCl PH 7.7-7.8, 2mM sodium 4-(hydroxymercury)benzoate, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.09	41.06

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 42.18	α = 90
b = 41.43	β = 104.47
c = 72.24	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	CCD	OXFORD SAPPHIRE CCD		2008-09-09	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SEALED TUBE	OXFORD DIFFRACTION ENHANCED ULTRA	1.5418

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.81	70	99.6	0.055	20.9	4.2	22284	22187	2

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.81	1.87	100		0.315	3.08	2.6	2225

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	PDB ENTRY 1CA2	1.81	11.83	21415	1141	99.67	0.18948	0.1868	0.24018	RANDOM	12.625

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]
0.26		-0.02	-0.05		-0.22

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.02
r_dihedral_angle_4_deg	18.764
r_dihedral_angle_3_deg	17.405
r_dihedral_angle_1_deg	6.338
r_scangle_it	3.343
r_scbond_it	2.261
r_angle_refined_deg	1.595
r_mcangle_it	1.401
r_mcbond_it	0.901
r_nbtor_refined	0.307
r_chiral_restr	0.295
r_symmetry_vdw_refined	0.256
r_nbd_refined	0.218
r_xyhbond_nbd_refined	0.182
r_symmetry_hbond_refined	0.126
r_metal_ion_refined	0.038
r_bond_refined_d	0.016
r_gen_planes_refined	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2053
Nucleic Acid Atoms
Solvent Atoms	193
Heterogen Atoms	29

Software

Software
Software Name	Purpose
CrysalisPro	data collection
AMoRE	phasing
REFMAC	refinement
CrysalisPro	data reduction
SCALEPACK	data scaling