1CFN

ANTI-P24 (HIV-1) FAB FRAGMENT CB41 COMPLEXED WITH AN EPITOPE-RELATED PEPTIDE

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2HFL	PDB ENTRY 2HFL

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7.5		1.8 M (NH4)2 SO4, 0.1 M 3-(N- MORPHOLINO)-PROPANESULFONIC AC, pH 7.5

Crystal Properties
Matthews coefficient	Solvent content
4.8	71

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 105.44	α = 90
b = 105.44	β = 90
c = 295.79	γ = 120

Symmetry
Space Group	P 61 2 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	288	IMAGE PLATE	MARRESEARCH	BENT MIRROR	1995-10-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	EMBL/DESY, HAMBURG BEAMLINE X11		EMBL/DESY, HAMBURG	X11

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	2.6	91	96	0.076		5.5		29821		2	41

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 2HFL	2.65	90	2	26473	26473	2039	98	0.277	0.325	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]

RMS Deviations
Key	Refinement Restraint Deviation
p_special_tor	83.4
p_staggered_tor	25.4
p_transverse_tor	16.5
p_planar_tor	4.7
p_mcangle_it	2.82
p_scangle_it	2.79
p_scbond_it	1.665
p_mcbond_it	1.589
p_multtor_nbd	0.25
p_singtor_nbd	0.196
p_xyhbond_nbd	0.178
p_chiral_restr	0.15
p_plane_restr	0.05
p_angle_d	0.037
p_planar_d	0.037
p_bond_d	0.011
p_angle_deg
p_hb_or_metal_coord
p_xhyhbond_nbd
p_orthonormal_tor

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3344
Nucleic Acid Atoms
Solvent Atoms	25
Heterogen Atoms

Software

Software
Software Name	Purpose
MOSFLM	data reduction
CCP4	data reduction
AMoRE	phasing
CCP4	refinement
CCP4	data scaling