3M98 | pdb_00003m98

Crystal structure of human carbonic anhydrase isozyme II with 5-(1H-benzimidazol-1-ylacetyl)-2-chlorobenzenesulfonamide

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3HLJ	PDB entry 3HLJ

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		291	Crystallization buffer was 0.1M sodium BICINE, pH 9.0, 0.2 M ammonium sulfate and 2M sodium malonate, pH 7.0 made from 1M sodium BICINE and 3.4M sodium malonate, vapor diffusion, sitting drop, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
2.07	40.68

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 42.233	α = 90
b = 41.112	β = 104.05
c = 72.109	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	MAR CCD 165 mm		2009-12-21	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	EMBL/DESY, HAMBURG BEAMLINE X13	0.8120	EMBL/DESY, HAMBURG	X13

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	1.5	39.81	98	0.045	0.045	35.9	9.9		37890

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)
	1.5	1.58	97.1		0.324	0.324	6	9.9

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 (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB entry 3HLJ	1.5	39.81	38726	34084	3806	97.84	0.13976	0.13479	0.13	0.184	0.18	RANDOM	16.463

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		0.04	-0.03		0.11

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.237
r_dihedral_angle_4_deg	23.93
r_sphericity_free	13.164
r_dihedral_angle_3_deg	12.66
r_sphericity_bonded	7.872
r_scangle_it	6.55
r_dihedral_angle_1_deg	6.344
r_scbond_it	4.887
r_mcangle_it	3.685
r_rigid_bond_restr	3.029
r_mcbond_it	2.819
r_angle_refined_deg	2.224
r_nbtor_refined	0.311
r_symmetry_hbond_refined	0.299
r_symmetry_vdw_refined	0.23
r_nbd_refined	0.219
r_chiral_restr	0.192
r_xyhbond_nbd_refined	0.133
r_metal_ion_refined	0.054
r_bond_refined_d	0.029
r_gen_planes_refined	0.014
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2049
Nucleic Acid Atoms
Solvent Atoms	223
Heterogen Atoms	40

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling
PDB_EXTRACT	data extraction
MAR345	data collection