Gag-Pol polyprotein - P24740 (POL_HV1U4)

 

Protein Feature View of PDB entries mapped to a UniProtKB sequence  

  • Number of PDB entries for P24740: 4
 
Function
Gag-Pol polyprotein: Mediates, with Gag polyrotein, the essential events in virion assembly, including binding the plasma membrane, making the protein-protein interactions necessary to create spherical particles, recruiting the viral Env proteins, and packaging the genomic RNA via direct interactions with the RNA packaging sequence (Psi). Gag-Pol polyprotein may regulate its own translation, by the binding genomic RNA in the 5'-UTR. At low concentration, the polyprotein would promote translation, whereas at high concentration, the polyprotein would encapsidate genomic RNA and then shutt off translation. UniProt
Catalytic Activity
Deoxynucleoside triphosphate + DNAn = diphosphate + DNAn+1. UniProt
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Subunit Structure
Matrix protein p17: Homotrimer; further assembles as hexamers of trimers (By similarity). Matrix protein p17: Interacts with gp41 (via C-terminus) (By similarity). Matrix protein p17: interacts with host CALM1; this interaction induces a conformational change in the Matrix protein, triggering exposure of the myristate group (By similarity). Matrix protein p17: interacts with host AP3D1; this interaction allows the polyprotein trafficking to multivesicular bodies during virus assembly (By similarity). Matrix protein p17: Part of the pre-integration complex (PIC) which is composed of viral genome, matrix protein, Vpr and integrase (By similarity). Capsid protein p24: Homodimer; the homodimer further multimerizes as homohexamers or homopentamers. Capsid protein p24: Interacts with human PPIA/CYPA (By similarity); This interaction stabilizes the capsid. Capsid protein p24: Interacts with human NUP153 (By similarity). Capsid protein p24: Interacts with host PDZD8; this interaction stabilizes the capsid (By similarity). Capsid protein p24: Interacts with monkey TRIM5; this interaction destabilizes the capsid (By similarity).Protease: Homodimer, whose active site consists of two apposed aspartic acid residues. Reverse transcriptase/ribonuclease H: Heterodimer of p66 RT and p51 RT (RT p66/p51). Heterodimerization of RT is essential for DNA polymerase activity. Despite the sequence identities, p66 RT and p51 RT have distinct folding. Integrase: Homodimer; possibly can form homotetramer. Integrase: Part of the pre-integration complex (PIC) which is composed of viral genome, matrix protein, Vpr and integrase. Integrase: Interacts with human SMARCB1/INI1 and human PSIP1/LEDGF isoform 1. Integrase: Interacts with human KPNA3; this interaction might play a role in nuclear import of the pre-integration complex (By similarity). Integrase: Interacts with human NUP153; this interaction might play a role in nuclear import of the pre-integration complex. UniProt
Domain
Integrase: The core domain contains the D-x(n)-D-x(35)-E motif, named for the phylogenetically conserved glutamic acid and aspartic acid residues and the invariant 35 amino acid spacing between the second and third acidic residues. Each acidic residue of the D,D(35)E motif is independently essential for the 3'-processing and strand transfer activities of purified integrase protein. UniProt
  • Organism: isolate MAL
  • Length:
  • UniProt
  • Isoforms: 2, currently showing only the 'canonical' sequence.
  • Other Gene names: gag-pol
This protein in other organisms (by gene name):
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Data in green originates from UniProtKB  
Variation data (sourced from UniProt) shows non-genetic variation from the ExPASy   and dbSNP   websites.
Data in yellow originates from Pfam  , by interacting with the HMMER3 web site  
Data in purple originates from Phosphosite  .
Data in orange originates from the SCOP   (version 1.75) and SCOPe   (version 2.04) classifications.
Data in grey has been calculated using BioJava  . Protein disorder predictions are based on JRONN (Troshin, P. and Barton, G. J. unpublished), a Java implementation of RONN  
  • Red: potentially disorderd region
  • Blue: probably ordered region.
Hydropathy has been calculated using a sliding window of 15 residues and summing up scores from standard hydrophobicity tables.
  • Red: hydrophobic
  • Blue: hydrophilic.
Data in lilac represent the genomic exon structure projected onto the UniProt sequence.
Data in blue originates from PDB
  • Secstruc: Secondary structure projected from representative PDB entries onto the UniProt sequence.
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The PDB to UniProt mapping is based on the data provided by the EBI SIFTS project. See also Velankar et al., Nucleic Acids Research 33, D262-265 (2005).
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