Experiment: 1DEQ

THE CRYSTAL STRUCTURE OF MODIFIED BOVINE FIBRINOGEN (AT ~4 ANGSTROM RESOLUTION)

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1FZA	human fragment d coordinates (see related entry 1fza)

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6.2	277	10 mM MES, 5mM sodium azide, 2mM calcium chloride , pH 6.2, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
3.12	60.53

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 176.006	α = 90
b = 94.935	β = 94.41
c = 209.805	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		1996-10-21	M	SINGLE WAVELENGTH
2	1	100	IMAGE PLATE	MARRESEARCH		1996-04-30
3	1	100	CCD	PRINCETON 2K		1997-11-23

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X12C		NSLS	X12C
2	SYNCHROTRON	NSLS BEAMLINE X12C		NSLS	X12C
3	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	3.4	210	78.5	0.075	7.05	4.42	79465	79465

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	3.38	3.57	46.7		0.28		2.3	6830

Refinement

Statistics
Diffraction ID	Structure Solution 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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	molecular replacement (using human fragment d coordinates)	human fragment d coordinates (see related entry 1fza)	3.5	10	69051	69051	3444	86.9	0.263	0.263	0.257	0.4412	0.37	0.4402	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]

RMS Deviations
Key	Refinement Restraint Deviation
x_dihedral_angle_d	28.1
x_angle_deg	1.83
x_bond_d	0.012

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3900
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms

Software

Software
Software Name	Purpose
AMoRE	phasing
X-PLOR	refinement
DENZO	data reduction
CCP4	data scaling