2FHI

SUBSTRATE ANALOG (IB2) COMPLEX WITH THE HIS 96 ASN SUBSTITUTION OF THE FRAGILE HISTIDINE TRIAD PROTEIN, FHIT

X-RAY DIFFRACTION

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Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7.5		FHIT H96N WAS COCRYSTALLIZED WITH 2.9 MOLAR EQUIVALENTS OF IB2 BY VAPOR DIFFUSION WITH 2 M AMMONIUM SULFATE, 4% PEG 400, AND 0.1M NA HEPES PH 7.5.

Crystal Properties
Matthews coefficient	Solvent content
2.83	58

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 50.46	α = 90
b = 50.46	β = 90
c = 268.95	γ = 120

Symmetry
Space Group	P 61 2 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	98	CCD	ADSC		1997-12-22	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	CHESS BEAMLINE F1		CHESS	F1

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	21.8	88	0.097	0.097	3	2.9		12563

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	2	2.12	80		0.267	0.267	2	2.5

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	REFINEMENT	THROUGHOUT	PDB ENTRY 1FIT	2.6	6	3	5718	428	84	0.241	0.241	0.278	RANDOM	32.8

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
x_dihedral_angle_d	26
x_angle_deg	1.8
x_improper_angle_d	1.04
x_bond_d	0.015
x_bond_d_na
x_bond_d_prot
x_angle_d
x_angle_d_na
x_angle_d_prot
x_angle_deg_na
x_angle_deg_prot
x_dihedral_angle_d_na
x_dihedral_angle_d_prot
x_improper_angle_d_na
x_improper_angle_d_prot
x_mcbond_it
x_mcangle_it
x_scbond_it
x_scangle_it

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	991
Nucleic Acid Atoms
Solvent Atoms	32
Heterogen Atoms	49

Software

Software
Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
MOSFLM	data reduction
CCP4	data scaling
X-PLOR	phasing