Experiment: 3ZP9

Human Carbonic Anhydrase II as a Scaffold for an Artificial Transfer Hydrogenase

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3PYK	PDB ENTRY 3PYK

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.9	293	2.1 M AMSO4, 50 MM TRIS-SO4, 0.2 MM 4-CHLOROMERCURIBENZOIC ACID, 4 MG/ML PROTEIN, PH 7.9, 293 K

Crystal Properties
Matthews coefficient	Solvent content
2.2	42.7

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 42.5	α = 90
b = 41.62	β = 103.8
c = 72.48	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 2M		2012-12-13	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SLS BEAMLINE X06DA		SLS	X06DA

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	1.31	40.01	82.9	0.08	9.3	3.2		49267		1.25	13.08

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	1.31	1.38	43.2		1.26	1.26	2.9

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Free (Depositor)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	PDB ENTRY 3PYK	1.31	40.011	1.99	49213	2019	82.89	0.1693	0.1683	0.1932

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]
-0.2071		0.9784	2.1497		-1.9426

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	15.357
f_angle_d	1.79
f_chiral_restr	0.117
f_bond_d	0.018
f_plane_restr	0.01

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2059
Nucleic Acid Atoms
Solvent Atoms	167
Heterogen Atoms	62

Software

Software
Software Name	Purpose
PHENIX	refinement
XDS	data reduction
XSCALA	data scaling
PHASER	phasing