6TZ6

Crystal Structure of Candida Albicans Calcineurin A, Calcineurin B, FKBP12 and FK506 (Tacrolimus)

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.29	289	CANDIDA ALBICANS VCID8024 [CALCINEURIN A FUSED TO CALCINEURIN B] AND R8065 [FKBP12] IN A SEC PURIFIED COMPLEX MEDIATED BY FK506/TACROLIMUS AT 10.2 MG/ ML AND SUPPLEMENTED WITH 25.6UM R8065 AND 32UM FK506. PROTEIN BUFFER INCLUDES 10MM TRIS PH 7.5, 50 MM NACL, 1.0MM CACL2. THE PROTEIN COMPLEX WAS CRYSTALLIZED AGAINST OPTIMIZATION SCREEN AMP_PROPLEX_A10 (OPT SCREEN BASED ON PROPLEX CONDITION A10) WELL B7: 0.1M TRIS-HCL, 15.91% PEG 2,000 MME, 0.1M POTASSIUM CHLORIDE, AND CRYO-PROTECTED WITH 20% ETHYLENE GLYCOL

Crystal Properties
Matthews coefficient	Solvent content
2.45	49.79

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 62.47	α = 90
b = 142.85	β = 90
c = 175.61	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	100	CCD	MARMOSAIC 300 mm CCD		2013-06-27	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-G	0.9786	APS	21-ID-G

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	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	2.55	50	98.4	0.083	0.094	0.998	16.87	4.4		51429		-3

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	2.55	2.62	99.2		0.56	0.635	0.826	3.4	4.5

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation 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	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	1TCO	2.55	34.996	1.34	51342	1999	98.47	0.1839	0.182	0.2286

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]

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	12.122
f_angle_d	0.916
f_chiral_restr	0.048
f_bond_d	0.008
f_plane_restr	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	9363
Nucleic Acid Atoms
Solvent Atoms	281
Heterogen Atoms	148

Software

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

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.