3SWB

Crystal structure of the amino-terminal domain of human cardiac troponin C in complex with cadmium at 1.7 A resolution

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8	298	cadmium sulphate octahydrate 0.02M, sodium acetate 0.6M, 0.1M Tris , pH 8.0, VAPOR DIFFUSION, SITTING DROP, temperature 298.0K

Crystal Properties
Matthews coefficient	Solvent content
2.09	41.07

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 49.793	α = 90
b = 49.793	β = 90
c = 117.475	γ = 120

Symmetry
Space Group	P 61 2 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	CCD	ADSC QUANTUM 4r		2011-04-05	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X4A	0.97910	NSLS	X4A

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	1.67	50	99.9	0.128	102.75	35.8	10707	10699	2	-3

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	1.67	1.73	99.9		0.432	11.63	17.8	1039

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	SAD	THROUGHOUT	1.67	43.12	10090	509	99.47	0.13622	0.13474	0.16456	RANDOM	24.744

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]
2.37	1.19		2.37		-3.56

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	46.374
r_dihedral_angle_4_deg	24.018
r_dihedral_angle_3_deg	16.563
r_scangle_it	8.247
r_dihedral_angle_1_deg	6.093
r_scbond_it	5.711
r_mcangle_it	3.882
r_rigid_bond_restr	3.202
r_mcbond_it	2.55
r_angle_refined_deg	1.908

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	46.374
r_dihedral_angle_4_deg	24.018
r_dihedral_angle_3_deg	16.563
r_scangle_it	8.247
r_dihedral_angle_1_deg	6.093
r_scbond_it	5.711
r_mcangle_it	3.882
r_rigid_bond_restr	3.202
r_mcbond_it	2.55
r_angle_refined_deg	1.908
r_chiral_restr	0.124
r_bond_refined_d	0.018
r_gen_planes_refined	0.011

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	680
Nucleic Acid Atoms
Solvent Atoms	45
Heterogen Atoms	13

Software

Software
Software Name	Purpose
DENZO	data reduction
HKL2Map	model building
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling
HKL2Map	phasing

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.