上游克通大学 Shanghai Jiao Tong University reverse transcriptase HIV Viral double helix integrase Incorporated into host RNA DNA genome transcription translation Final HIV protease structural Polyproteins proteins reverse transcriptase inhibitors Drugs Protease inhibitorShanghai Jiao Tong University Viral RNA double helix DNA Incorporated into host genome reverse transcriptase HIV integrase transcription translation Polyproteins Final structural proteins HIV protease Drugs reverse transcriptase inhibitors Protease inhibitor