Domain structure of the human immunodeficiency virus reverse transcriptase.
The spatial arrangement of subunits p51 and p66 of the HIV-1 reverse transcriptase and the position of the RNase H containing domain, p15, have been determined by means of neutron small-angle scattering. The reverse transcriptase (p66/p51) is a flat molecule, which can be approximated by an ellipsoid with the half axes of 5.2 nm, 4.8 nm and 1.4 nm. The two subunits p51 and p66 having a centre-to-centre distance of 3.3 +/- 0.3 nm are attached at their flat sides, slightly shifted sideways. The p15 domain is located at the long axis of the ellipsoidal reverse transcriptase having a distance of 5.0 +/- 0.5 nm to the centre of the p51d domain, which is part of the p66 subunit, and a distance of 5.3 +/- 1.2 nm to the centre of the neighbouring p51s subunit.
Max Planck Institute of Biochemistry, Martinsried, FRG.
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Lederer
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Darlix
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Le Grice
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Heumann
D002846:Chromatography, Affinity; D004591:Electrophoresis, Polyacrylamide Gel; D015497:HIV-1 / Q000201:enzymology*; D046911:Macromolecular Substances; D009502:Neutrons; D011487:Protein Conformation; D012194:RNA-Directed DNA Polymerase / Q000235:genetics*; D016914:Ribonuclease H / Q000235:genetics; D012542:Scattering, Radiation
D046911:Macromolecular Substances; D012194:RNA-Directed DNA Polymerase; D016914:Ribonuclease H