9GUO | pdb_00009guo

Human carbonic anhydrase II complexed with 2-(1H-tetrazol-5-yl)acetic acid

X-RAY DIFFRACTION

---

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	4FIK

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8	296	1.5 M sodium citrate, 0.1 M Tris pH 8.0

Crystal Properties
Matthews coefficient	Solvent content
2.13	42.27

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 42.513	α = 90
b = 41.808	β = 104.561
c = 72.554	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	PIXEL	DECTRIS PILATUS 6M		2024-05-14	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ELETTRA BEAMLINE 11.2C	1.00	ELETTRA	11.2C

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	CC (Half)	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	35.95	93	0.1	0.998	11	6.2		27872

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.65	1.68	100		0.807	0.964	0.729	2.2	6.5

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	NONE	1.65	35.95	27388	1409	91.397	0.171	0.1665	0.1742	0.2475	0.2518	19.175

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]
1.804		-0.302	1.268		-2.568

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.196
r_dihedral_angle_4_deg	21.224
r_dihedral_angle_3_deg	15.373
r_rigid_bond_restr	7.563
r_dihedral_angle_1_deg	7.519
r_scangle_it	5.232
r_scangle_other	5.231
r_lrange_it	5.049
r_lrange_other	4.867
r_scbond_it	4.27
r_scbond_other	4.269
r_mcangle_other	3.83
r_mcangle_it	3.822
r_mcbond_it	3.053
r_mcbond_other	3.027
r_angle_refined_deg	1.81
r_angle_other_deg	1.381
r_nbd_refined	0.22
r_symmetry_nbd_other	0.207
r_nbd_other	0.206
r_symmetry_xyhbond_nbd_refined	0.181
r_nbtor_refined	0.17
r_symmetry_nbd_refined	0.157
r_xyhbond_nbd_refined	0.153
r_chiral_restr	0.087
r_symmetry_nbtor_other	0.082
r_metal_ion_refined	0.039
r_bond_refined_d	0.013
r_gen_planes_refined	0.011
r_bond_other_d	0.002
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2051
Nucleic Acid Atoms
Solvent Atoms	158
Heterogen Atoms	14

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
Aimless	data scaling
REFMAC	phasing