5AL7

N-terminal fragment of Drosophila melanogaster Sas-6 (F143D), dimerised via the coiled-coil domain.

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2Y3V	ENSEMBLE OF PDB ENTRIES 2Y3V A,B,D, 2Y3W A, B 3Q0X A,B
experimental model	PDB	2Y3W	ENSEMBLE OF PDB ENTRIES 2Y3V A,B,D, 2Y3W A, B 3Q0X A,B
experimental model	PDB	3Q0X	ENSEMBLE OF PDB ENTRIES 2Y3V A,B,D, 2Y3W A, B 3Q0X A,B

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7.5		0.1M BICINE/TRIZMA MIX (PH 8.5), 20% W/V PEG 550MME, 10% W/V PEG 20K, 30 MM NANO3, 30 MM NA2HPO4, 30 MM (NH4)2SO4

Crystal Properties
Matthews coefficient	Solvent content
3.74	67.09

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 47.13	α = 90
b = 64.74	β = 98.91
c = 123.73	γ = 90

Symmetry
Space Group	P 1 2 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				2011-09-10	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID23-2		ESRF	ID23-2

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	2.92	41.43	97.4	0.13	12.1	5.2		15767		2	43.17

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	2.92	3	96.4		0.67	2.6	5.1

Refinement

Statistics
Diffraction ID	Structure Solution 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	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	ENSEMBLE OF PDB ENTRIES 2Y3V A,B,D, 2Y3W A, B 3Q0X A,B	2.92	41.429	1.34	15764	788	97.19	0.1847	0.1832	0.2147

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
f_dihedral_angle_d	15.633
f_angle_d	1.055
f_chiral_restr	0.044
f_bond_d	0.007
f_plane_restr	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3364
Nucleic Acid Atoms
Solvent Atoms	33
Heterogen Atoms	8

Software

Software
Software Name	Purpose
PHENIX	refinement
XDS	data reduction
Aimless	data scaling
PHASER	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.