4C3T | pdb_00004c3t

The Carbonic anhydrase from Thermovibrio ammonificans reveals an interesting intermolecular disulfide contributing to increasing thermal stability of this enzyme

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1KOP	PDB ENTRY 1KOP

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1				0.5 M LICL, 50 MM SODIUM CITRATE, 10% PEG6000, PH 4.0

Crystal Properties
Matthews coefficient	Solvent content
2.28	46.03

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 80.93	α = 90
b = 80.93	β = 90
c = 154.62	γ = 90

Symmetry
Space Group	P 43 21 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100					M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I03		Diamond	I03

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	1.69	80.93	100	0.07	18.6	12.7		734424		2

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.69	1.74	100		1.23	2.3	12.3

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 (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 1KOP	1.69	57.23	54946	2941	99.97	0.22284	0.2213	0.22	0.25175	0.25	RANDOM	36.284

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]
0.43			0.43		-0.87

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.446
r_dihedral_angle_4_deg	15.307
r_dihedral_angle_3_deg	13.689
r_long_range_B_refined	7.816
r_dihedral_angle_1_deg	5.847
r_mcangle_it	5.091
r_scbond_it	4.753
r_mcbond_it	4.114
r_angle_refined_deg	1.241
r_chiral_restr	0.086
r_bond_refined_d	0.007
r_gen_planes_refined	0.005
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_mcangle_other
r_scbond_other
r_scangle_it
r_scangle_other
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3626
Nucleic Acid Atoms
Solvent Atoms	291
Heterogen Atoms	4

Software

Software
Software Name	Purpose
REFMAC	refinement
MOLREP	phasing