Structural highlights
Function
[Q90VT5_9HIV1] Gag-Pol polyprotein and Gag polyprotein may regulate their own translation, by the binding genomic RNA in the 5'-UTR. At low concentration, Gag-Pol and Gag would promote translation, whereas at high concentration, the polyproteins encapsidate genomic RNA and then shutt off translation (By similarity).[SAAS:SAAS012344_004_047815] Nucleocapsid protein p7 encapsulates and protects viral dimeric unspliced (genomic) RNA. Binds these RNAs through its zinc fingers. Facilitates rearangement of nucleic acid secondary structure during retrotranscription of genomic RNA. This capability is referred to as nucleic acid chaperone activity (By similarity).[SAAS:SAAS012344_004_052592] [GAG_HV1Z2] Matrix protein p17 targets Gag and Gag-Pol polyproteins to the plasma membrane via a multipartite membrane binding signal, that includes its myristoylated N-terminus. Also mediates nuclear localization of the preintegration complex. Implicated in the release from host cell mediated by Vpu. Capsid protein p24 forms the conical core of the virus that encapsulates the genomic RNA-nucleocapsid complex. Nucleocapsid protein p7 encapsulates and protects viral dimeric unspliced (genomic) RNA. Binds these RNAs through its zinc fingers. p6-gag plays a role in budding of the assembled particle by interacting with the host class E VPS proteins TSG101 and PDCD6IP/AIP1 (By similarity).
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
The effect of amino acid variability between human immunodeficiency virus type 1 (HIV-1) clades on structure and the emergence of resistance mutations in HIV-1 protease has become an area of significant interest in recent years. We determined the first crystal structure of the HIV-1 CRF01_AE protease in complex with the p1-p6 substrate to a resolution of 2.8 A. Hydrogen bonding between the flap hinge and the protease core regions shows significant structural rearrangements in CRF01_AE protease compared to the clade B protease structure.
Structural analysis of human immunodeficiency virus type 1 CRF01_AE protease in complex with the substrate p1-p6.,Bandaranayake RM, Prabu-Jeyabalan M, Kakizawa J, Sugiura W, Schiffer CA J Virol. 2008 Jul;82(13):6762-6. Epub 2008 Apr 23. PMID:18434392[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Bandaranayake RM, Prabu-Jeyabalan M, Kakizawa J, Sugiura W, Schiffer CA. Structural analysis of human immunodeficiency virus type 1 CRF01_AE protease in complex with the substrate p1-p6. J Virol. 2008 Jul;82(13):6762-6. Epub 2008 Apr 23. PMID:18434392 doi:10.1128/JVI.00018-08
