Experiment: 1CTQ

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	5P21

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	MICROBATCH	7.6	291	PROTEIN WAS CRYSTALLIZED FROM 28 % PEG 400, 10MM MGCL 264MM TRIS/HCL, PH 7.6, pH 7.60, micro-batch, temperature 18K

Crystal Properties
Matthews coefficient	Solvent content
1.91	35.47

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 39.67	α = 90
b = 39.67	β = 90
c = 158.409	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	100	AREA DETECTOR	SIEMENS HI-STAR		1998-06-16	M	SINGLE WAVELENGTH

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

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	1.26	50	86.5	0.027	28.9	3		35100			9.6

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)
	1.26	1.35	58.8		0.116	6.7	2	4521

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R	5P21	1.26	10	32126	32126	1711	86.5	0.177	0.172	0.172	0.224	RANDOM

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]

Coordinate Error
Structure Solution Method	Refinement High Resolution	Refinement Low Resolution
1		1603

RMS Deviations
Key	Refinement Restraint Deviation
s_angle_d	2.29
s_anti_bump_dis_restr	0.06
s_bond_d	0.01
s_similar_dist
s_from_restr_planes
s_zero_chiral_vol
s_non_zero_chiral_vol
s_rigid_bond_adp_cmpnt
s_similar_adp_cmpnt
s_approx_iso_adps

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1375
Nucleic Acid Atoms
Solvent Atoms	247
Heterogen Atoms	33

Software

Software
Software Name	Purpose
X-PLOR	model building
SHELXL-97	refinement
FRAMBO	data collection
XDS	data scaling
XSCALE	data scaling
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.