Experiment: 2AB6

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2GTU	PDB ENTRY 2GTU

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.5	290	20% PEG 4000, pH 6.50, VAPOR DIFFUSION, SITTING DROP, temperature 290K

Crystal Properties
Matthews coefficient	Solvent content
2.17	42.96

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 56.12	α = 90
b = 76.716	β = 90
c = 212.449	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	90	IMAGE PLATE	RIGAKU RAXIS IV	MIRRORS	2004-10-20	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	2.5	20	86.5	0.134	0.13	3	11.7	28327	28327			18.4

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.5	2.66	73.1		0.33	0.41	1.6	4.6	3927

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	THROUGHOUT	PDB ENTRY 2GTU	2.5	20	28296	27393	903	86.5	0.252	0.23029	0.22866	0.27961	RANDOM	16.864

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]
-1.41			0.61		0.8

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.334
r_dihedral_angle_4_deg	22.104
r_dihedral_angle_3_deg	19.061
r_dihedral_angle_1_deg	7.008
r_scangle_it	2.742
r_mcangle_it	2.405
r_scbond_it	1.661
r_mcbond_it	1.493
r_angle_refined_deg	1.226
r_symmetry_hbond_refined	0.367

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.334
r_dihedral_angle_4_deg	22.104
r_dihedral_angle_3_deg	19.061
r_dihedral_angle_1_deg	7.008
r_scangle_it	2.742
r_mcangle_it	2.405
r_scbond_it	1.661
r_mcbond_it	1.493
r_angle_refined_deg	1.226
r_symmetry_hbond_refined	0.367
r_symmetry_vdw_refined	0.33
r_nbtor_refined	0.315
r_nbd_refined	0.186
r_xyhbond_nbd_refined	0.182
r_chiral_restr	0.103
r_bond_refined_d	0.011
r_gen_planes_refined	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7228
Nucleic Acid Atoms
Solvent Atoms	203
Heterogen Atoms	84

Software

Software
Software Name	Purpose
SCALEPACK	data scaling
CCP4	model building
REFMAC	refinement
CCP4	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.