Experiment: 4B3Q

Structures of HIV-1 RT and RNA-DNA Complex Reveal a Unique RT Conformation and Substrate Interface

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1RTD	PDB ENTRIES 1RTD, 1FK9
experimental model	PDB	1FK9	PDB ENTRIES 1RTD, 1FK9

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	8.5	277	RT COMPLEX WAS MIXED WITH RESERVOIR SOLUTION CONTAINING 1.8M (NH4)2SO4, 50MM TRIS HCL (PH8.5), AND 25MM MGSO4. VAPOR DIFFUSION 4C.

Crystal Properties
Matthews coefficient	Solvent content
6	82

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 272.7	α = 90
b = 272.7	β = 90
c = 233.1	γ = 120

Symmetry
Space Group	H 3 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	MARRESEARCH MAR300	ADJUSTABLE FOCUS K-B PAIR SI MIRRORS	2011-07-09	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 23-ID-B		APS	23-ID-B

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	5	60	99.6	0.14	14.8	6.5		14646		2	170.34

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	5	5.09	100		0.87	1.7	6.8

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	PDB ENTRIES 1RTD, 1FK9	5	29.987	1	13005	662	89.81	0.3632	0.361	0.3631	0.4073	0.4024	149

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
f_dihedral_angle_d	13.78
f_angle_d	0.802
f_chiral_restr	0.054
f_bond_d	0.008
f_plane_restr	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7535
Nucleic Acid Atoms	878
Solvent Atoms
Heterogen Atoms	20

Software

Software
Software Name	Purpose
PHENIX	refinement
DENZO	data reduction
SCALEPACK	data scaling
MOLREP	phasing