3PTF

X-ray structure of the non-covalent complex between UbcH5A and Ubiquitin

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1UBQ	1UBQ, 1X23
experimental model	PDB	1X23	1UBQ, 1X23

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.5	292	Crystals of the complex were grown by hanging-drop vapor diffusion at 19 C by combining 1.5 ul of protein solution (20 mM MES pH 6.0, 150 mM NaCl and 0.5 mM TCEP) at 20 mg/ml with 1.5 ul of reservoir solution (0.1 M Tris pH 8.5 and 24% PEG 10,000), VAPOR DIFFUSION, HANGING DROP, temperature 292K

Crystal Properties
Matthews coefficient	Solvent content
2.16	43.05

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 27.462	α = 90
b = 102.903	β = 90
c = 159.806	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	93	CCD	MARMOSAIC 325 mm CCD		2006-06-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL9-2	0.97918	SSRL	BL9-2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.7	50	97.4	0.128	17.4	5.3	13165	13156		-3	59

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.7	2.8	98.3		0.458	3.2	5.3	1309

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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1UBQ, 1X23	2.7	50	13247	13133	622	97.52	0.21177	0.21177	0.2087	0.27538	RANDOM	43.342

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]
0.97			-1.82		0.85

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.352
r_dihedral_angle_3_deg	15.719
r_dihedral_angle_4_deg	13.739
r_scangle_it	5.951
r_dihedral_angle_1_deg	5.649
r_mcangle_it	4.661
r_scbond_it	3.513
r_mcbond_it	2.619
r_angle_refined_deg	1.095
r_angle_other_deg	0.808
r_mcbond_other	0.505
r_chiral_restr	0.06
r_bond_refined_d	0.009
r_gen_planes_refined	0.004
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3600
Nucleic Acid Atoms
Solvent Atoms	40
Heterogen Atoms

Software

Software
Software Name	Purpose
BOS	data collection
PHASER	phasing
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling