Experiment: 1KIL

Three-dimensional structure of the complexin/SNARE complex

X-RAY DIFFRACTION

Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	277	27%(v/v) Iso-Propanol, 200mM MgCl2, 100mM Hepes, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.65	53.59

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 40.489	α = 90
b = 60.425	β = 90
c = 159.787	γ = 90

Symmetry
Space Group	P 21 21 21

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	CUSTOM-MADE		2001-09-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID	1.0332	APS	19-ID

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	2.3	32.2	97.4	0.051	0.051	24.8	5.3	18098	17624	-3	-3	45.8

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)
	2.3	2.34	82.4		0.265	0.265	4.3	3.8	728

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-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1SFC	2.3	32.23	15857	15857	1005	87.3	0.287	0.245	0.2479	0.305	RANDOM	65.7

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]
36.42			-4.39		-32.03

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	16.6
c_scangle_it	3.93
c_scbond_it	2.52
c_mcangle_it	2.46
c_mcbond_it	1.46
c_angle_deg	1.2
c_improper_angle_d	0.8
c_bond_d	0.011

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2495
Nucleic Acid Atoms
Solvent Atoms	113
Heterogen Atoms	2

Software

Software
Software Name	Purpose
HKL-2000	data collection
HKL-2000	data reduction
AMoRE	phasing
CNS	refinement
HKL-2000	data scaling