Experiment: 1ICT

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2ROX	TETRAMER GENERATED FROM PDB ENTRY 2ROX WITH ONLY PROTEIN ATOMS FROM RESIDUES 10-125 INCLUDED

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	HANGMAN HANGING DROP CRYSTALLIZATION METHOD	4.9	293	55% AMMONIUM SULFATE; 0.1 M PHOSPHATE BUFFER, pH 4.9, HANGMAN HANGING DROP CRYSTALLIZATION METHOD, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.64	50.23

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 76.69	α = 90
b = 96.66	β = 106.84
c = 81.74	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	293	IMAGE PLATE	RIGAKU RAXIS II	COLLIMATOR		M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU200	1.5418

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	3	96.66	61.4	0.098	38.6	10.12	1.62	14537	23667			12.5

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)
	3	3.1	59.6		0.231	2.6	1.69	1267

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 (Observed)	R-Work (Depositor)	R-Free (Depositor)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	TETRAMER GENERATED FROM PDB ENTRY 2ROX WITH ONLY PROTEIN ATOMS FROM RESIDUES 10-125 INCLUDED	3	15	22820	14405	899	63.1	0.229	0.229	0.289	SHELLS	22.5

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
c_dihedral_angle_d	26.4
c_angle_deg	1.4
c_improper_angle_d	1.14
c_bond_d	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7168
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms	48

Software

Software
Software Name	Purpose
X-PLOR	model building
CNS	refinement
X-PLOR	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 R01GM157729.