2FFH | pdb_00002ffh

THE SIGNAL SEQUENCE BINDING PROTEIN FFH FROM THERMUS AQUATICUS

X-RAY DIFFRACTION

Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.5	298	PROTEIN AT 20 MG/ML IN 5 MM HEPES, PH 7.5. CRYSTALLIZED AT RT BY HANGING DROP VAPOR DIFFUSION USING 1.2 M SODIUM ACETATE, 0.12 M CADMIUM SULFATE, 0.1 M TRIS PH 8.5, 20 MM LITHIUM DODECYL SULFATE, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
4.37	65

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 195.05	α = 90
b = 195.05	β = 90
c = 335.72	γ = 120

Symmetry
Space Group	H 3 2

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	PRINCETON 2K		1997-07-04	M	SINGLE WAVELENGTH

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)	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	3.2	30	90.4	0.089	11.3	4.1	40702	36791		-3

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)
	3.2	3.36	79.6		0.36	3.1	2.5	3914

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-Work (Depositor)	R-Free (Depositor)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MIR, MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1FFH	3.2	30	40702	36791	1862	90.4	0.257	0.296	Random	72.9

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]

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	9453
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms	31

Software

Software
Software Name	Purpose
CCP4	model building
RAVE	model building
CNS	refinement
DENZO	data reduction
SCALEPACK	data scaling
CCP4	phasing
RAVE	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.