Experiment: 1C6A

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1L69

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1				1.8-2.2 M NAH2/K2HPO4, PH 6.9-7.1, 50 MM BETA-MERCAPTOETHANOL AND/OR 50 MM HYDROXYETHYL DISULFIDE

Crystal Properties
Matthews coefficient	Solvent content
2.8	56

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 61.113	α = 90
b = 61.113	β = 90
c = 97.444	γ = 120

Symmetry
Space Group	P 32 2 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	273	IMAGE PLATE	RIGAKU RAXIS IIC		1997-02-09	M	SINGLE WAVELENGTH

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

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	2.1	60	99.6	0.064	9	3.35		12780

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)
	2.1	2.14	99.2		0.247

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION		1L69	2.1	60	12750	12750		99.6	0.166

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
t_dihedral_angle_d	15.61
t_it	4.073
t_angle_deg	2.883
t_nbd	0.06
t_bond_d	0.02
t_gen_planes	0.015
t_trig_c_planes	0.011
t_incorr_chiral_ct
t_pseud_angle

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1289
Nucleic Acid Atoms
Solvent Atoms	131
Heterogen Atoms	8

Software

Software
Software Name	Purpose
TNT	refinement
DENZO	data reduction
SCALEPACK	data scaling
TNT	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.