Experiment: 1TTM

Human carbonic anhydrase II complexed with 667-coumate

X-RAY DIFFRACTION

Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8	277	100 mM Tris-HCl, 1 mM ZnSO4, 2.45 M ammonium sulfate; 30 mM 2-mercaptoethanol, 0.5 mM 667-coumate , pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2	37.9

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 42.525	α = 90
b = 72.522	β = 90
c = 75.379	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	298	CCD	ADSC QUANTUM 4	vertically Rh coated Si mirror	2003-11-22	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SRS BEAMLINE PX9.6	0.87	SRS	PX9.6

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	1.95	50	86.3	0.108	0.106	12.3	4.8	15254	15254			9

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)
	1.95	2.02	86.3		0.108	0.337	11.45	4.6	17647

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 (All)	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	1UGG	1.95	20.24	14701	14701	727	83.6	0.21	0.18	0.18	0.1778	0.21	0.2125	RANDOM	21

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]
-0.11			2.49		-2.39

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	24.3
c_scangle_it	3.37
c_scbond_it	2.24
c_mcangle_it	2.23
c_mcbond_it	1.42
c_angle_deg	1.3
c_improper_angle_d	0.79
c_bond_d	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2058
Nucleic Acid Atoms
Solvent Atoms	165
Heterogen Atoms	23

Software

Software
Software Name	Purpose
CNS	refinement
HKL-2000	data reduction
SCALEPACK	data scaling
CNS	phasing