3F4Y

HIV gp41 six-helix bundle containing a mutant CHR alpha-peptide sequence

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.5	298	0.1 M Tris pH 8.5, 1 M ammonium phosphate monobasic, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.16	43.03

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 37.611	α = 90
b = 179.038	β = 90
c = 33.075	γ = 90

Symmetry
Space Group	P 21 21 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	BRUKER SMART 6000	confocal mirrors	2007-11-05	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	BRUKER AXS MICROSTAR	1.5418

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	44.8	99.9	0.05	28	8.6	15956	15938

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)
	2	2.1	100		0.262	4.7	3.6

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	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		THROUGHOUT	2	25	15881	758	99.96	0.212	0.209	0.26	RANDOM	24.219

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]
-0.06			-0.55		0.61

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.911
r_dihedral_angle_3_deg	18.309
r_dihedral_angle_4_deg	16.519
r_dihedral_angle_1_deg	4.729
r_scangle_it	3.197
r_scbond_it	2.792
r_mcbond_it	1.525
r_mcangle_it	1.247
r_angle_refined_deg	1.146
r_angle_other_deg	0.9
r_symmetry_vdw_other	0.312
r_symmetry_hbond_refined	0.276
r_xyhbond_nbd_refined	0.21
r_nbd_refined	0.205
r_nbd_other	0.176
r_nbtor_refined	0.17
r_symmetry_vdw_refined	0.158
r_mcbond_other	0.145
r_nbtor_other	0.09
r_chiral_restr	0.066
r_bond_refined_d	0.013
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	3769
Nucleic Acid Atoms
Solvent Atoms	456
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
PROTEUM PLUS	data collection
PROTEUM PLUS	data reduction
PROTEUM PLUS	data scaling
PHASER	phasing