Integrase

spinqualitylabelsall models HIV protease complex with inhibitor and glycerol (PDB code 3fx5) Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Best example is PDB entry 3fx5 and is shown in the viewer. Molecule Integrase, also known as Integrase, p2B, p10, Capsid protein p27, p4, p3, Reverse transcriptase beta-subunit, Protease p15, Nucleocapsid protein p12, Reverse transcriptase alpha-subunit, RT-alpha, p2A, RT-beta, Gag-Pro-Pol polyprotein, pp32, Matrix protein p19, IN, Matrix protein p17, Transframe peptide, Reverse transcriptase/ribonuclease H, Pr160Gag-Pol, Spacer peptide 1, p2, Exoribonuclease H, p6*, Gag-Pol polyprotein, Nucleocapsid protein p7, p15, Retropepsin, p6-pol, p66 RT, Protease, PR, CA, TF, NC, SP1, Capsid protein p24, MA, p51 RT, Ribonuclease H, Protease/Reverse transcriptase, Pro-Pol polyprotein, Pr125Pol, Protease/Reverse transcriptase/ribonuclease H, RNase H, p87Pro-RT-RNaseH, p42In, p65Pro-RT, INT, Pol polyprotein, dUTPase, RT, Deoxyuridine 5'-triphosphate nucleotidohydrolase, P72, Pr170Gag-Pol, p11, p2L, Capsid protein p26, Matrix protein p16, P119, Putative prophage integrase, Int protein, CP4-like integrase, Transposase from transposon Tn916, NC-pro, Pr160Gag-Pro-Pol, Nucleocapsid protein p15-pro, p1 and NC'. Function Integrase: Catalyzes viral DNA integration into the host chromosome, by performing a series of DNA cutting and joining reactions. This enzyme activity takes place after virion entry into a cell and reverse transcription of the RNA genome in dsDNA. The first step in the integration process is 3' processing. This step requires a complex comprising the viral genome, matrix protein, Vpr and integrase. This complex is called the pre-integration complex (PIC). The integrase protein removes 2 nucleotides from each 3' end of the viral DNA, leaving recessed CA OH's at the 3' ends. In the second step, the PIC enters cell nucleus. This process is mediated through integrase and Vpr proteins, and allows the virus to infect a non dividing cell. This ability to enter the nucleus is specific of lentiviruses, other retroviruses cannot and rely on cell division to access cell chromosomes. In the third step, termed strand transfer, the integrase protein joins the previously processed 3' ends to the 5' ends of strands of target cellular DNA at the site of integration. The 5'-ends are produced by integrase-catalyzed staggered cuts, 5 bp apart. A Y-shaped, gapped, recombination intermediate results, with the 5'-ends of the viral DNA strands and the 3' ends of target DNA strands remaining unjoined, flanking a gap of 5 bp. The last step is viral DNA integration into host chromosome. This involves host DNA repair synthesis in which the 5 bp gaps between the unjoined strands are filled in and then ligated. Since this process occurs at both cuts flanking the HIV genome, a 5 bp duplication of host DNA is produced at the ends of HIV-1 integration. Alternatively, Integrase may catalyze the excision of viral DNA just after strand transfer, this is termed disintegration.Data source: Uniprot P03367 Catalytic Activity Deoxynucleoside triphosphate + DNA(n) = diphosphate + DNA(n+1).Data source: Uniprot P03367 Biological process Is involved in the following biological processes: proteolysis DNA integration RNA-dependent DNA replication viral process dUTP metabolic process DNA recombination establishment of integrated proviral latency viral entry into host cell In structures Integrase is found in 1103 PDB entries Viruses (1062 PDB entries): Human immunodeficiency virus 1 (550 PDB entries): 3fx5 Title: Structure of HIV-1 Protease in Complex with Potent Inhibitor KNI-272 Determined by High Resolution X-ray Crystallography 0.93 A resolution Search for other PDB entries HIV-1 M:B_HXB2R (71 PDB entries): 3kt5 Title: Crystal Structure of N88S mutant HIV-1 Protease 1.801 A resolution Search for other PDB entries Human immunodeficiency virus type 1 BH10 (69 PDB entries): 4zip Title: HIV-1 wild Type protease with GRL-0648A (a isophthalamide-derived P2-Ligand) 1.11 A resolution Search for other PDB entries Human immunodeficiency virus type 1 (NEW YORK-5 ISOLATE) (52 PDB entries): 3avj Title: Crystal structures of novel allosteric peptide inhibitors of HIV integrase in the LEDGF binding site 1.7 A resolution Other macromolecules also in this entry: LEDGF peptide.. Search for other PDB entries HIV-1 M:B_ARV2/SF2 (46 PDB entries): 4obj Title: Crystal Structure of Inactive HIV-1 Protease in Complex with the p1-p6 substrate variant (S451N) 1.75 A resolution Other macromolecules also in this entry: Spacer peptide 2.. Search for other PDB entries Human immunodeficiency virus type 1 (BRU ISOLATE) (45 PDB entries): 3vf7 Title: Crystal Structure of HIV-1 Protease Mutant L76V with novel P1'-Ligands GRL-02031 1.3 A resolution Search for other PDB entries Human spumaretrovirus (44 PDB entries): 3oym Title: Crystal structure of the PFV N224H mutant intasome bound to manganese 2.02 A resolution Other macromolecules also in this entry: DNA (5'-D(*AP*TP*TP*GP*TP*CP*AP*TP*GP*GP*AP*AP*TP*TP*TP*CP*GP*CP*A)-3'), DNA (5'-D(*TP*GP*CP*GP*AP*AP*AP*TP*TP*CP*CP*AP*TP*GP*AP*CP*A)-3'). Search for other PDB entries Human immunodeficiency virus (41 PDB entries): 1kzk Title: JE-2147-HIV Protease Complex 1.09 A resolution Search for other PDB entries Human immunodeficiency virus type 1 (Z2/CDC-Z34 ISOLATE) (16 PDB entries): 2wkz Title: HIV-1 Protease Inhibitors Containing a Tertiary Alcohol in the Transition-State Mimic with Improved Cell-Based Antiviral Activity 1.7 A resolution Search for other PDB entries Feline immunodeficiency virus (13 PDB entries): 1fiv Title: STRUCTURE OF AN INHIBITOR COMPLEX OF PROTEINASE FROM FELINE IMMUNODEFICIENCY VIRUS 2.0 A resolution Other macromolecules also in this entry: FIV PROTEASE INHIBITOR ACE-ALN-VAL-STA-GLU-ALN-NH2.. Search for other PDB entries Human immunodeficiency virus type 1 (BH5 ISOLATE) (12 PDB entries): 3d20 Title: Crystal structure of HIV-1 mutant I54V and inhibitor DARUNAVIA 1.05 A resolution Search for other PDB entries Rous sarcoma virus (strain Schmidt-Ruppin) (11 PDB entries): 1a5x Title: ASV INTEGRASE CORE DOMAIN WITH HIV-1 INTEGRASE INHIBITOR Y3 1.9 A resolution Search for other PDB entries Human immunodeficiency virus type 2 (ISOLATE ROD) (8 PDB entries): 3ecg Title: High Resolution HIV-2 Protease Structure in Complex with Antiviral Inhibitor GRL-98065 1.18 A resolution Search for other PDB entries Avian sarcoma virus (7 PDB entries): 1czb Title: ATOMIC RESOLUTION ASV INTEGRASE CORE DOMAIN FROM HEPES 1.06 A resolution Search for other PDB entries Human immunodeficiency virus type 1 (CLONE 12) (5 PDB entries): 1hxb Title: HIV-1 proteinase complexed with RO 31-8959 2.3 A resolution Search for other PDB entries HUMAN IMMUNODEFICIENCY VIRUS 1 (4 PDB entries): 2j9k Title: Atomic-resolution Crystal Structure of Chemically-Synthesized HIV-1 Protease Complexed with Inhibitor MVT-101 1.2 A resolution Search for other PDB entries Rous sarcoma virus - Prague C (3 PDB entries): 4fw1 Title: Crystal structure of two-domain RSV INTEGRASE covalently linked with DNA 1.86 A resolution Search for other PDB entries Bovine immunodeficiency virus R29 (2 PDB entries): 3kkr Title: Crystal structure of catalytic core domain of BIV integrase in crystal form I 2.453 A resolution Search for other PDB entries Streptomyces phage phiC31 (1 PDB entries): 4bqq Title: Protein crystal structure of the N-terminal and recombinase domains of the Streptomyces temperate phage serine recombinase, fC31 integrase. 2.15 A resolution Bacteria (10 PDB entries): Enterococcus faecalis (4 PDB entries): 1bb8 Title: N-TERMINAL DNA BINDING DOMAIN FROM TN916 INTEGRASE, NMR, 25 STRUCTURES N/A A resolution Search for other PDB entries Yersinia pestis (2 PDB entries): 3jtz Title: Structure of the arm-type binding domain of HPI integrase 1.3 A resolution Search for other PDB entries Staphylococcus aureus subsp. aureus USA300_TCH1516 (1 PDB entries): 3nkh Title: Crystal Structure of Integrase from MRSA strain Staphylococcus aureus 2.502 A resolution Eukaryota (3 PDB entries): Homo sapiens (3 PDB entries): 3ufn Title: Crystal Structure of Multidrug Resistant HIV-1 Protease Clinical Isolate PR20 in Complex with Saquinavir 1.45 A resolution Search for other PDB entries

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