Experiment: 1IHO

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	Other		From experimental phases

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8	298	PEG 4000 (4-6%), Tris buffer pH 8 (50 mM), VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.97	58

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 66.031	α = 90
b = 78.075	β = 103.71
c = 77.126	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	100	CCD	BRANDEIS - B4	Condensing Mirror Tunable Monochromator	1999-05-30	M	MAD
2	1	x-ray	100	CCD	BRANDEIS - B4	Condensing Mirror Tunable Monochromator	1999-05-30	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X25	0.970,0.8850,0.9791	NSLS	X25
2	SYNCHROTRON	NSLS BEAMLINE X25	1.1	NSLS	X25

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	1.7	50	97.8	0.103	0.103	15.9	7	77294	81357	2	2.1	28

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)
	1.7	1.76	78.5		0.6	0.6	2	3	6542

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (I)	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	MAD	FREE R	From experimental phases	1.7	50	-999	77295	81357	4062	92.4	0.211	0.211	0.2118	0.2536	RANDOM 5%	36.4

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
	4420	4956

RMS Deviations
Key	Refinement Restraint Deviation
s_similar_adp_cmpnt	0.07
s_non_zero_chiral_vol	0.04
s_zero_chiral_vol	0.03
s_angle_d	0.024
s_from_restr_planes	0.0227
s_anti_bump_dis_restr	0.01
s_bond_d	0.008
s_similar_dist
s_rigid_bond_adp_cmpnt
s_approx_iso_adps

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4333
Nucleic Acid Atoms
Solvent Atoms	614
Heterogen Atoms	20

Software

Software
Software Name	Purpose
SHELXL-97	refinement
SHARP	phasing
REFMAC	refinement
ARP	model building
BUSTER	refinement
TNT	refinement
SHELX	model building
O	model building
SnB	phasing
MOSFLM	data reduction
CCP4	data scaling
BUSTER	phasing
TNT	phasing
SHELX	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.