3DRT

Crystal structure of the HIV-1 broadly neutralizing antibody 2F5 in complex with the gp41 scrambledFP-MPER scrHyb3K construct GIGAFGLLGFLAAGSKK-Ahx-K656NEQELLELDKWASLWN671

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.6	293	Crystals were grown in reservoir solution containing 0.1 M Na citrate pH 5.6, 16% 2-propanol, 16% PEG 4K, 0.01% Tween-20, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.2	44.09

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 64.2	α = 90
b = 76.4	β = 90
c = 93.6	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	IMAGE PLATE	MAR scanner 345 mm plate		2008-06-12	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU MICROMAX-007 HF	1.54

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	3.3	17	94	0.265		8.3	7263	6826

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	3.3	3.51	89.6		0.497		8.15

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	3D0L	3.3	16.81	7263	6826	346	94	0.203	0.203	0.229	RANDOM	19

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]
1.34			-0.62		-0.72

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	29.3
c_scangle_it	2.45
c_mcangle_it	1.97
c_angle_deg	1.8
c_scbond_it	1.64
c_mcbond_it	1.15
c_improper_angle_d	1.08
c_bond_d	0.009
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3313
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms	6

Software

Software
Software Name	Purpose
CNS	refinement
MAR345dtb	data collection
XDS	data reduction
XDS	data scaling
CNS	phasing