Experiment: 1N0X

Crystal Structure of a Broadly Neutralizing Anti-HIV-1 Antibody in Complex with a Peptide Mimotope

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1HZH	Fab domains from uncomplexed IgG1 b12 structure (1HZH)

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	10.5	295.5	ammonium sulfate, lithium sulfate, CAPS buffer, pH 10.5, VAPOR DIFFUSION, SITTING DROP, temperature 295.5K

Crystal Properties
Matthews coefficient	Solvent content
2.54	51.61

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 51.621	α = 90
b = 184.358	β = 103.05
c = 56.173	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	171	CCD	ADSC QUANTUM 315	flat mirror	2000-05-22	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL11-1	0.965	SSRL	BL11-1

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	1.78	33.45	92	0.06	17.6	2.3	94383	84895	2	2	20.1

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	1.78	1.81	87.1		0.385	1.5		4468

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	Fab domains from uncomplexed IgG1 b12 structure (1HZH)	1.8	45	94383	84895	1967	92	0.229	0.229	0.22	0.2178	0.252	0.2496	random

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]
0.59		-0.34	2.678		-3.268

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7091
Nucleic Acid Atoms
Solvent Atoms	725
Heterogen Atoms	83

Software

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