3IGP

Structure of inhibitor binding to Carbonic Anhydrase II

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.2	291	2.5M ammonium sulfate, 0.3M sodium chloride, 0.1M tris-HCl, pH8.2, VAPOR DIFFUSION, HANGING DROP, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
2.08	40.91

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 42.31	α = 90
b = 41.27	β = 104.22
c = 72.04	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	120	IMAGE PLATE	MAR scanner 345 mm plate	mirrors	2009-06-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	ENRAF-NONIUS FR591	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	1.65	22.79	92.5	0.079	0.079	5.9	2.2	29111	26928	1	1	13.25

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.65	1.69	88.6		0.362	0.362	2	2.2	1910

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 1H9N	1.65	19.95	25556	1353	92	0.1608	0.15892	0.19571	RANDOM	10.513

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]
-0.1		0.02	-0.14		0.25

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.475
r_dihedral_angle_4_deg	21.132
r_dihedral_angle_3_deg	11.225
r_dihedral_angle_1_deg	6.428
r_scangle_it	3.713
r_scbond_it	3.172
r_mcangle_it	2.558
r_mcbond_it	2.01
r_angle_refined_deg	1.429
r_angle_other_deg	0.827
r_mcbond_other	0.555
r_symmetry_vdw_other	0.255
r_symmetry_vdw_refined	0.215
r_nbd_other	0.201
r_nbd_refined	0.196
r_nbtor_refined	0.185
r_symmetry_hbond_refined	0.145
r_xyhbond_nbd_refined	0.142
r_chiral_restr	0.105
r_nbtor_other	0.086
r_bond_refined_d	0.011
r_metal_ion_refined	0.009
r_bond_other_d	0.007
r_gen_planes_refined	0.005
r_gen_planes_other	0.001
r_xyhbond_nbd_other
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2080
Nucleic Acid Atoms
Solvent Atoms	238
Heterogen Atoms	49

Software

Software
Software Name	Purpose
MAR345	data collection
MOLREP	phasing
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling