Experiment: 1FVH

CRYSTAL STRUCTURE ANALYSIS OF NEURONAL SEC1 FROM THE SQUID L. PEALEI

X-RAY DIFFRACTION

Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	BATCH CRYSTALLIZATION	7.4	277	Hepes, potassium chloride, dithiothreitol , pH 7.4, BATCH CRYSTALLIZATION, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.94	57.8

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 49.125	α = 90
b = 123.183	β = 110.49
c = 63.891	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	ADSC QUANTUM 4		2000-03-07	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-1		ESRF	ID14-1

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	2.8	15	94.8	0.054	20.1	3.7	17776	16849			60.02

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)
	2.8	2.9	72.6		0.287	2.5	2.9	1293

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1EPU	2.8	14.91	17588	16654	821	95.4	0.2366	0.2366	0.2342	0.2328	0.283	0.2783	RANDOM	61.74

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]
-3.4		24.18	-6.64		10.05

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	22.69893
c_mcangle_it	1.56
c_angle_deg	1.46055
c_scangle_it	1.15
c_improper_angle_d	0.98254
c_mcbond_it	0.84
c_scbond_it	0.67
c_bond_d	0.007562

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4412
Nucleic Acid Atoms
Solvent Atoms	37
Heterogen Atoms

Software

Software
Software Name	Purpose
AMoRE	phasing
CNS	refinement
DENZO	data reduction
SCALEPACK	data scaling