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POL_MLVCB
ID   POL_MLVCB               Reviewed;        1733 AA.
AC   P08361;
DT   01-AUG-1988, integrated into UniProtKB/Swiss-Prot.
DT   31-JAN-2018, sequence version 2.
DT   03-AUG-2022, entry version 95.
DE   RecName: Full=Gag-Pol polyprotein;
DE            Short=Pr180gag-pol;
DE   Contains:
DE     RecName: Full=Matrix protein p15;
DE   Contains:
DE     RecName: Full=RNA-binding phosphoprotein p12;
DE     AltName: Full=pp12;
DE   Contains:
DE     RecName: Full=Capsid protein p30;
DE   Contains:
DE     RecName: Full=Nucleocapsid protein p10-Pol;
DE              Short=NC-pol;
DE   Contains:
DE     RecName: Full=Protease;
DE              EC=3.4.23.- {ECO:0000255|PROSITE-ProRule:PRU00275};
DE   Contains:
DE     RecName: Full=Reverse transcriptase/ribonuclease H;
DE              Short=RT;
DE              EC=2.7.7.49 {ECO:0000255|PROSITE-ProRule:PRU00405};
DE              EC=2.7.7.7 {ECO:0000255|PROSITE-ProRule:PRU00405};
DE              EC=3.1.26.4 {ECO:0000255|PROSITE-ProRule:PRU00408};
DE   Contains:
DE     RecName: Full=Integrase;
DE              Short=IN;
DE              EC=2.7.7.- {ECO:0000250|UniProtKB:P03355};
DE              EC=3.1.-.- {ECO:0000250|UniProtKB:P03355};
GN   Name=gag-pol;
OS   Cas-Br-E murine leukemia virus.
OC   Viruses; Riboviria; Pararnavirae; Artverviricota; Revtraviricetes;
OC   Ortervirales; Retroviridae; Orthoretrovirinae; Gammaretrovirus;
OC   Murine leukemia virus.
OX   NCBI_TaxID=11792;
OH   NCBI_TaxID=10090; Mus musculus (Mouse).
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=1840655; DOI=10.1093/nar/19.7.1707;
RA   Perryman S.M., McAtee F.J., Portis J.L.;
RT   "Complete nucleotide sequence of the neurotropic murine retrovirus CAS-BR-
RT   E.";
RL   Nucleic Acids Res. 19:1707-1707(1991).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 1452-1733.
RX   PubMed=3023680; DOI=10.1128/jvi.60.3.910-919.1986;
RA   Rassart E., Nelbach L., Jolicoeur P.;
RT   "Cas-Br-E murine leukemia virus: sequencing of the paralytogenic region of
RT   its genome and derivation of specific probes to study its origin and the
RT   structure of its recombinant genomes in leukemic tissues.";
RL   J. Virol. 60:910-919(1986).
CC   -!- FUNCTION: [Gag-Pol polyprotein]: Plays a role in budding and is
CC       processed by the viral protease during virion maturation outside the
CC       cell. During budding, it recruits, in a PPXY-dependent or independent
CC       manner, Nedd4-like ubiquitin ligases that conjugate ubiquitin molecules
CC       to Gag-Pol, or to Gag-Pol binding host factors. Interaction with HECT
CC       ubiquitin ligases probably links the viral protein to the host ESCRT
CC       pathway and facilitates release. {ECO:0000250|UniProtKB:P03332}.
CC   -!- FUNCTION: [Matrix protein p15]: Targets Gag and gag-pol polyproteins to
CC       the plasma membrane via a multipartite membrane binding signal, that
CC       includes its myristoylated N-terminus. Also mediates nuclear
CC       localization of the pre-integration complex.
CC       {ECO:0000250|UniProtKB:P03332}.
CC   -!- FUNCTION: [RNA-binding phosphoprotein p12]: Constituent of the pre-
CC       integration complex (PIC) which tethers the latter to mitotic
CC       chromosomes. This allows the integration of the viral genome into the
CC       host DNA. {ECO:0000250|UniProtKB:P03355}.
CC   -!- FUNCTION: [Capsid protein p30]: Forms the spherical core of the virion
CC       that encapsulates the genomic RNA-nucleocapsid complex.
CC       {ECO:0000250|UniProtKB:P03336}.
CC   -!- FUNCTION: [Nucleocapsid protein p10-Pol]: Involved in the packaging and
CC       encapsidation of two copies of the genome. Binds with high affinity to
CC       conserved UCUG elements within the packaging signal, located near the
CC       5'-end of the genome. This binding is dependent on genome dimerization.
CC       Acts as a nucleic acid chaperone which is involved in rearrangement of
CC       nucleic acid secondary structures during gRNA retrotranscription.
CC       {ECO:0000250|UniProtKB:P03332, ECO:0000250|UniProtKB:P03355}.
CC   -!- FUNCTION: [Protease]: The aspartyl protease mediates proteolytic
CC       cleavages of Gag and Gag-Pol polyproteins during or shortly after the
CC       release of the virion from the plasma membrane. Cleavages take place as
CC       an ordered, step-wise cascade to yield mature proteins. This process is
CC       called maturation. Displays maximal activity during the budding process
CC       just prior to particle release from the cell (Potential). Cleaves the
CC       translation initiation factor eIF4G leading to the inhibition of host
CC       cap-dependent translation (By similarity).
CC       {ECO:0000250|UniProtKB:P03332, ECO:0000255|PROSITE-ProRule:PRU00275}.
CC   -!- FUNCTION: [Reverse transcriptase/ribonuclease H]: RT is a
CC       multifunctional enzyme that converts the viral dimeric RNA genome into
CC       dsDNA in the cytoplasm, shortly after virus entry into the cell. This
CC       enzyme displays a DNA polymerase activity that can copy either DNA or
CC       RNA templates, and a ribonuclease H (RNase H) activity that cleaves the
CC       RNA strand of RNA-DNA heteroduplexes in a partially processive 3' to 5'
CC       endonucleasic mode. Conversion of viral genomic RNA into dsDNA requires
CC       many steps. A tRNA binds to the primer-binding site (PBS) situated at
CC       the 5' end of the viral RNA. RT uses the 3' end of the tRNA primer to
CC       perform a short round of RNA-dependent minus-strand DNA synthesis. The
CC       reading proceeds through the U5 region and ends after the repeated (R)
CC       region which is present at both ends of viral RNA. The portion of the
CC       RNA-DNA heteroduplex is digested by the RNase H, resulting in a ssDNA
CC       product attached to the tRNA primer. This ssDNA/tRNA hybridizes with
CC       the identical R region situated at the 3' end of viral RNA. This
CC       template exchange, known as minus-strand DNA strong stop transfer, can
CC       be either intra- or intermolecular. RT uses the 3' end of this newly
CC       synthesized short ssDNA to perform the RNA-dependent minus-strand DNA
CC       synthesis of the whole template. RNase H digests the RNA template
CC       except for a polypurine tract (PPT) situated at the 5' end of the
CC       genome. It is not clear if both polymerase and RNase H activities are
CC       simultaneous. RNase H probably can proceed both in a polymerase-
CC       dependent (RNA cut into small fragments by the same RT performing DNA
CC       synthesis) and a polymerase-independent mode (cleavage of remaining RNA
CC       fragments by free RTs). Secondly, RT performs DNA-directed plus-strand
CC       DNA synthesis using the PPT that has not been removed by RNase H as
CC       primers. PPT and tRNA primers are then removed by RNase H. The 3' and
CC       5' ssDNA PBS regions hybridize to form a circular dsDNA intermediate.
CC       Strand displacement synthesis by RT to the PBS and PPT ends produces a
CC       blunt ended, linear dsDNA copy of the viral genome that includes long
CC       terminal repeats (LTRs) at both ends. {ECO:0000255}.
CC   -!- FUNCTION: [Integrase]: Catalyzes viral DNA integration into the host
CC       chromosome, by performing a series of DNA cutting and joining
CC       reactions. This enzyme activity takes place after virion entry into a
CC       cell and reverse transcription of the RNA genome in dsDNA. The first
CC       step in the integration process is 3' processing. This step requires a
CC       complex comprising the viral genome, matrix protein and integrase. This
CC       complex is called the pre-integration complex (PIC). The integrase
CC       protein removes 2 nucleotides from each 3' end of the viral DNA,
CC       leaving recessed CA OH's at the 3' ends. In the second step that
CC       requires cell division, the PIC enters cell nucleus. In the third step,
CC       termed strand transfer, the integrase protein joins the previously
CC       processed 3' ends to the 5' ends of strands of target cellular DNA at
CC       the site of integration. The last step is viral DNA integration into
CC       host chromosome. {ECO:0000250|UniProtKB:P03355}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=a 2'-deoxyribonucleoside 5'-triphosphate + DNA(n) =
CC         diphosphate + DNA(n+1); Xref=Rhea:RHEA:22508, Rhea:RHEA-COMP:17339,
CC         Rhea:RHEA-COMP:17340, ChEBI:CHEBI:33019, ChEBI:CHEBI:61560,
CC         ChEBI:CHEBI:173112; EC=2.7.7.49; Evidence={ECO:0000255|PROSITE-
CC         ProRule:PRU00405};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=a 2'-deoxyribonucleoside 5'-triphosphate + DNA(n) =
CC         diphosphate + DNA(n+1); Xref=Rhea:RHEA:22508, Rhea:RHEA-COMP:17339,
CC         Rhea:RHEA-COMP:17340, ChEBI:CHEBI:33019, ChEBI:CHEBI:61560,
CC         ChEBI:CHEBI:173112; EC=2.7.7.7; Evidence={ECO:0000255|PROSITE-
CC         ProRule:PRU00405};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=Endonucleolytic cleavage to 5'-phosphomonoester.; EC=3.1.26.4;
CC         Evidence={ECO:0000255|PROSITE-ProRule:PRU00408};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|PROSITE-ProRule:PRU00405};
CC       Note=The RT polymerase active site binds 2 magnesium ions.
CC       {ECO:0000255|PROSITE-ProRule:PRU00405};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000250|UniProtKB:P03355};
CC       Note=Binds 1 magnesium ion for ribonuclease H (RNase H) activity.
CC       {ECO:0000250|UniProtKB:P03355};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000250|UniProtKB:P03355};
CC       Note=Magnesium ions are required for integrase activity. Binds at least
CC       1, maybe 2 magnesium ions. {ECO:0000250|UniProtKB:P03355};
CC   -!- ACTIVITY REGULATION: [Protease]: Most efficiently inhibited by
CC       Amprenavir, which is able to block Gag-Pol processing in infected
CC       cells. {ECO:0000250|UniProtKB:P03355}.
CC   -!- SUBUNIT: [Capsid protein p30]: Homohexamer; further associates as
CC       homomultimer. The virus core is composed of a lattice formed from
CC       hexagonal rings, each containing six capsid monomers. Interacts with
CC       mouse UBE2I and mouse PIAS4. {ECO:0000250|UniProtKB:P03355}.
CC   -!- SUBUNIT: [Gag-Pol polyprotein]: Interacts (via PPXY motif) with host
CC       NEDD4 (By similarity). Interacts (via PSAP motif) with host TSG101.
CC       Interacts (via LYPX(n)L motif) with host PDCD6IP.
CC       {ECO:0000250|UniProtKB:P03355}.
CC   -!- SUBUNIT: [Reverse transcriptase/ribonuclease H]: The reverse
CC       transcriptase is a monomer (Potential). Interacts (via RNase domains)
CC       with host release factor ETF1; this interaction is essential for
CC       translational readthrough of amber codon between viral gag and pol
CC       genes, as well as for viral replication.
CC       {ECO:0000250|UniProtKB:P03355}.
CC   -!- SUBUNIT: [Integrase]: Homodimer. {ECO:0000250|UniProtKB:P03355}.
CC   -!- SUBCELLULAR LOCATION: [Gag-Pol polyprotein]: Virion
CC       {ECO:0000250|UniProtKB:P03332}. Host cell membrane
CC       {ECO:0000250|UniProtKB:P03332}; Lipid-anchor
CC       {ECO:0000250|UniProtKB:P03332}. Host late endosome membrane
CC       {ECO:0000250|UniProtKB:P03332}; Lipid-anchor
CC       {ECO:0000250|UniProtKB:P03332}. Host endosome, host multivesicular body
CC       {ECO:0000250|UniProtKB:P26807}. Note=These locations are probably
CC       linked to virus assembly sites. {ECO:0000250|UniProtKB:P03355}.
CC   -!- SUBCELLULAR LOCATION: [Matrix protein p15]: Virion
CC       {ECO:0000250|UniProtKB:P03355}.
CC   -!- SUBCELLULAR LOCATION: [Capsid protein p30]: Virion
CC       {ECO:0000250|UniProtKB:P03355}.
CC   -!- SUBCELLULAR LOCATION: [Nucleocapsid protein p10-Pol]: Virion
CC       {ECO:0000250|UniProtKB:P03355}.
CC   -!- SUBCELLULAR LOCATION: [Protease]: Virion
CC       {ECO:0000250|UniProtKB:P03355}.
CC   -!- SUBCELLULAR LOCATION: [RNA-binding phosphoprotein p12]: Host cytoplasm
CC       {ECO:0000250|UniProtKB:P03355}. Note=Localizes to the host cytoplasm
CC       early in infection and binds to the mitotic chromosomes later on.
CC       {ECO:0000250|UniProtKB:P03355}.
CC   -!- DOMAIN: [Gag-Pol polyprotein]: Late-budding domains (L domains) are
CC       short sequence motifs essential for viral particle release. They can
CC       occur individually or in close proximity within structural proteins.
CC       They interacts with sorting cellular proteins of the multivesicular
CC       body (MVB) pathway. Most of these proteins are class E vacuolar protein
CC       sorting factors belonging to ESCRT-I, ESCRT-II or ESCRT-III complexes.
CC       RNA-binding phosphoprotein p12 contains one L domain: a PPXY motif
CC       which potentially interacts with the WW domain 3 of NEDD4 E3 ubiquitin
CC       ligase. PPXY motif is essential for virus egress. Matrix protein p15
CC       contains one L domain: a PTAP/PSAP motif, which potentially interacts
CC       with the UEV domain of TSG101. The junction between the matrix protein
CC       p15 and RNA-binding phosphoprotein p12 also contains one L domain: a
CC       LYPX(n)L motif which potentially interacts with PDCD6IP. Both PSAP and
CC       LYPX(n)L domains might play little to no role in budding and possibly
CC       drive residual virus release. contains. {ECO:0000250|UniProtKB:P03332}.
CC   -!- PTM: [Gag-Pol polyprotein]: Ubiquitinated by ITCH. Gag can recruit the
CC       ubiquitin ligase Itch in an L domain-independent manner to facilitate
CC       virus release via a mechanism that involves Gag ubiquitination.
CC       {ECO:0000250|UniProtKB:P03332}.
CC   -!- PTM: [Gag-Pol polyprotein]: Specific enzymatic cleavages by the viral
CC       protease yield mature proteins. The protease is released by
CC       autocatalytic cleavage. The polyprotein is cleaved during and after
CC       budding, this process is termed maturation.
CC       {ECO:0000250|UniProtKB:P03355}.
CC   -!- PTM: [Capsid protein p30]: Sumoylated; which is required for virus
CC       replication. {ECO:0000250|UniProtKB:P03355}.
CC   -!- PTM: [RNA-binding phosphoprotein p12]: Phosphorylated on serine
CC       residues. {ECO:0000250|UniProtKB:P03355}.
CC   -!- MISCELLANEOUS: [Gag-Pol polyprotein]: This protein is translated as a
CC       gag-pol fusion protein by episodic readthrough of the gag protein
CC       termination codon. Readthrough of the terminator codon TAG occurs
CC       between the codons for 536-Asp and 538-Gly.
CC       {ECO:0000250|UniProtKB:P03355}.
CC   -!- MISCELLANEOUS: [Nucleocapsid protein p10-Pol]: Nucleocapsid protein
CC       p10-Pol released from Pol polyprotein (NC-pol) is a few amino acids
CC       shorter than the nucleocapsid protein p10 released from Gag polyprotein
CC       (NC-gag). {ECO:0000250|UniProtKB:P03355}.
CC   -!- MISCELLANEOUS: [Reverse transcriptase/ribonuclease H]: The reverse
CC       transcriptase is an error-prone enzyme that lacks a proof-reading
CC       function. High mutations rate is a direct consequence of this
CC       characteristic. RT also displays frequent template swiching leading to
CC       high recombination rate. Recombination mostly occurs between homologous
CC       regions of the two copackaged RNA genomes. If these two RNA molecules
CC       derive from different viral strains, reverse transcription will give
CC       rise to highly recombinated proviral DNAs. {ECO:0000255|PROSITE-
CC       ProRule:PRU00405}.
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DR   EMBL; X57540; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR   EMBL; M14702; AAA46511.1; -; Genomic_DNA.
DR   PIR; A26103; A26103.
DR   SMR; P08361; -.
DR   GO; GO:0044185; C:host cell late endosome membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0020002; C:host cell plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0072494; C:host multivesicular body; IEA:UniProtKB-SubCell.
DR   GO; GO:0016020; C:membrane; IEA:UniProtKB-KW.
DR   GO; GO:0019013; C:viral nucleocapsid; IEA:UniProtKB-KW.
DR   GO; GO:0004190; F:aspartic-type endopeptidase activity; IEA:UniProtKB-KW.
DR   GO; GO:0003677; F:DNA binding; IEA:UniProtKB-KW.
DR   GO; GO:0003887; F:DNA-directed DNA polymerase activity; IEA:UniProtKB-KW.
DR   GO; GO:0003723; F:RNA binding; IEA:UniProtKB-KW.
DR   GO; GO:0003964; F:RNA-directed DNA polymerase activity; IEA:UniProtKB-KW.
DR   GO; GO:0004523; F:RNA-DNA hybrid ribonuclease activity; IEA:UniProtKB-EC.
DR   GO; GO:0039660; F:structural constituent of virion; IEA:UniProtKB-KW.
DR   GO; GO:0008270; F:zinc ion binding; IEA:InterPro.
DR   GO; GO:0015074; P:DNA integration; IEA:UniProtKB-KW.
DR   GO; GO:0006310; P:DNA recombination; IEA:UniProtKB-KW.
DR   GO; GO:0075713; P:establishment of integrated proviral latency; IEA:UniProtKB-KW.
DR   GO; GO:0006508; P:proteolysis; IEA:UniProtKB-KW.
DR   GO; GO:0039657; P:suppression by virus of host gene expression; IEA:UniProtKB-KW.
DR   GO; GO:0046718; P:viral entry into host cell; IEA:UniProtKB-KW.
DR   GO; GO:0044826; P:viral genome integration into host DNA; IEA:UniProtKB-KW.
DR   GO; GO:0019068; P:virion assembly; IEA:InterPro.
DR   Gene3D; 1.10.150.180; -; 1.
DR   Gene3D; 1.10.375.10; -; 1.
DR   Gene3D; 2.40.70.10; -; 1.
DR   Gene3D; 3.30.420.10; -; 2.
DR   Gene3D; 3.30.70.270; -; 2.
DR   InterPro; IPR001969; Aspartic_peptidase_AS.
DR   InterPro; IPR043502; DNA/RNA_pol_sf.
DR   InterPro; IPR000840; G_retro_matrix.
DR   InterPro; IPR036946; G_retro_matrix_sf.
DR   InterPro; IPR039464; Gag-pol_Znf-H3C2.
DR   InterPro; IPR002079; Gag_p12.
DR   InterPro; IPR003036; Gag_P30.
DR   InterPro; IPR001584; Integrase_cat-core.
DR   InterPro; IPR040643; MLVIN_C.
DR   InterPro; IPR001995; Peptidase_A2_cat.
DR   InterPro; IPR021109; Peptidase_aspartic_dom_sf.
DR   InterPro; IPR018061; Retropepsins.
DR   InterPro; IPR008919; Retrov_capsid_N.
DR   InterPro; IPR010999; Retrovr_matrix.
DR   InterPro; IPR043128; Rev_trsase/Diguanyl_cyclase.
DR   InterPro; IPR012337; RNaseH-like_sf.
DR   InterPro; IPR002156; RNaseH_domain.
DR   InterPro; IPR036397; RNaseH_sf.
DR   InterPro; IPR000477; RT_dom.
DR   InterPro; IPR041577; RT_RNaseH_2.
DR   InterPro; IPR001878; Znf_CCHC.
DR   InterPro; IPR036875; Znf_CCHC_sf.
DR   Pfam; PF01140; Gag_MA; 1.
DR   Pfam; PF01141; Gag_p12; 1.
DR   Pfam; PF02093; Gag_p30; 1.
DR   Pfam; PF18697; MLVIN_C; 1.
DR   Pfam; PF00075; RNase_H; 1.
DR   Pfam; PF17919; RT_RNaseH_2; 1.
DR   Pfam; PF00665; rve; 1.
DR   Pfam; PF00077; RVP; 1.
DR   Pfam; PF00078; RVT_1; 1.
DR   Pfam; PF00098; zf-CCHC; 1.
DR   Pfam; PF16721; zf-H3C2; 1.
DR   SMART; SM00343; ZnF_C2HC; 1.
DR   SUPFAM; SSF47836; SSF47836; 1.
DR   SUPFAM; SSF47943; SSF47943; 1.
DR   SUPFAM; SSF50630; SSF50630; 1.
DR   SUPFAM; SSF53098; SSF53098; 2.
DR   SUPFAM; SSF56672; SSF56672; 1.
DR   SUPFAM; SSF57756; SSF57756; 1.
DR   PROSITE; PS50175; ASP_PROT_RETROV; 1.
DR   PROSITE; PS00141; ASP_PROTEASE; 1.
DR   PROSITE; PS50994; INTEGRASE; 1.
DR   PROSITE; PS50879; RNASE_H_1; 1.
DR   PROSITE; PS50878; RT_POL; 1.
DR   PROSITE; PS50158; ZF_CCHC; 1.
PE   3: Inferred from homology;
KW   Aspartyl protease; Capsid protein; Coiled coil; DNA integration;
KW   DNA recombination; DNA-binding; DNA-directed DNA polymerase; Endonuclease;
KW   Eukaryotic host gene expression shutoff by virus;
KW   Eukaryotic host translation shutoff by virus; Host cell membrane;
KW   Host cytoplasm; Host endosome; Host gene expression shutoff by virus;
KW   Host membrane; Host-virus interaction; Hydrolase; Lipoprotein; Magnesium;
KW   Membrane; Metal-binding; Myristate; Nuclease; Nucleotidyltransferase;
KW   Phosphoprotein; Protease; RNA-binding; RNA-directed DNA polymerase;
KW   Transferase; Ubl conjugation; Viral genome integration;
KW   Viral matrix protein; Viral nucleoprotein; Virion;
KW   Virus entry into host cell; Zinc; Zinc-finger.
FT   INIT_MET        1
FT                   /note="Removed"
FT                   /evidence="ECO:0000255"
FT   CHAIN           2..1733
FT                   /note="Gag-Pol polyprotein"
FT                   /id="PRO_0000125491"
FT   CHAIN           2..129
FT                   /note="Matrix protein p15"
FT                   /id="PRO_0000442860"
FT   CHAIN           130..213
FT                   /note="RNA-binding phosphoprotein p12"
FT                   /id="PRO_0000442861"
FT   CHAIN           214..476
FT                   /note="Capsid protein p30"
FT                   /id="PRO_0000442862"
FT   CHAIN           477..532
FT                   /note="Nucleocapsid protein p10-Pol"
FT                   /id="PRO_0000442863"
FT   CHAIN           533..657
FT                   /note="Protease"
FT                   /evidence="ECO:0000250|UniProtKB:P03355"
FT                   /id="PRO_0000442864"
FT   CHAIN           658..1328
FT                   /note="Reverse transcriptase/ribonuclease H"
FT                   /id="PRO_0000442865"
FT   CHAIN           1329..1733
FT                   /note="Integrase"
FT                   /id="PRO_0000390822"
FT   DOMAIN          559..629
FT                   /note="Peptidase A2"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00275"
FT   DOMAIN          739..930
FT                   /note="Reverse transcriptase"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00405"
FT   DOMAIN          1172..1318
FT                   /note="RNase H type-1"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00408"
FT   DOMAIN          1442..1600
FT                   /note="Integrase catalytic"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00457"
FT   ZN_FING         500..517
FT                   /note="CCHC-type"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00047"
FT   ZN_FING         1385..1425
FT                   /note="HHCC-type"
FT                   /evidence="ECO:0000250|UniProtKB:P03355"
FT   REGION          112..196
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          202..221
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          343..391
FT                   /note="Interaction with host PIAS4"
FT                   /evidence="ECO:0000250|UniProtKB:P03332"
FT   REGION          428..433
FT                   /note="Interaction with host UBE2I"
FT                   /evidence="ECO:0000250|UniProtKB:P03332"
FT   REGION          432..496
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          511..550
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COILED          436..476
FT                   /evidence="ECO:0000255"
FT   MOTIF           109..112
FT                   /note="PTAP/PSAP motif"
FT                   /evidence="ECO:0000250|UniProtKB:P03332"
FT   MOTIF           128..132
FT                   /note="LYPX(n)L motif"
FT                   /evidence="ECO:0000250|UniProtKB:P03332"
FT   MOTIF           160..163
FT                   /note="PPXY motif"
FT                   /evidence="ECO:0000250|UniProtKB:P03332"
FT   COMPBIAS        168..182
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        204..221
FT                   /note="Polar residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        432..474
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   ACT_SITE        564
FT                   /note="Protease; shared with dimeric partner"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00275"
FT   BINDING         807
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /ligand_note="catalytic; for reverse transcriptase
FT                   activity"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00405"
FT   BINDING         881
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /ligand_note="catalytic; for reverse transcriptase
FT                   activity"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00405"
FT   BINDING         882
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /ligand_note="catalytic; for reverse transcriptase
FT                   activity"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00405"
FT   BINDING         1181
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="2"
FT                   /ligand_note="catalytic; for RNase H activity"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00408"
FT   BINDING         1219
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="2"
FT                   /ligand_note="catalytic; for RNase H activity"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00408"
FT   BINDING         1240
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="2"
FT                   /ligand_note="catalytic; for RNase H activity"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00408"
FT   BINDING         1310
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="2"
FT                   /ligand_note="catalytic; for RNase H activity"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00408"
FT   BINDING         1453
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="3"
FT                   /ligand_note="catalytic; for integrase activity"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00457"
FT   BINDING         1512
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="3"
FT                   /ligand_note="catalytic; for integrase activity"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00457"
FT   SITE            129..130
FT                   /note="Cleavage; by viral protease"
FT                   /evidence="ECO:0000250|UniProtKB:P03355"
FT   SITE            213..214
FT                   /note="Cleavage; by viral protease"
FT                   /evidence="ECO:0000250|UniProtKB:P03355"
FT   SITE            476..477
FT                   /note="Cleavage; by viral protease"
FT                   /evidence="ECO:0000250|UniProtKB:P03355"
FT   SITE            532..533
FT                   /note="Cleavage; by viral protease"
FT                   /evidence="ECO:0000250|UniProtKB:P03355"
FT   SITE            657..658
FT                   /note="Cleavage; by viral protease"
FT                   /evidence="ECO:0000250|UniProtKB:P03355"
FT   SITE            1328..1329
FT                   /note="Cleavage; by viral protease"
FT                   /evidence="ECO:0000250|UniProtKB:P03355"
FT   MOD_RES         190
FT                   /note="Phosphoserine; by host"
FT                   /evidence="ECO:0000250|UniProtKB:P03355"
FT   LIPID           2
FT                   /note="N-myristoyl glycine; by host"
FT                   /evidence="ECO:0000255"
FT   CONFLICT        1460
FT                   /note="G -> R (in Ref. 2; AAA46511)"
FT                   /evidence="ECO:0000305"
SQ   SEQUENCE   1733 AA;  194519 MW;  28B8AC9DF3F576D8 CRC64;
     MGQTVTTPLS LTLDHWKDVE RTAHNQSVDV KKRRWVTFCS VEWPTFNVGW PQDGTFNRDI
     ITQVKIKVFS PGPHGHPDQV PYIVTWEALA FDPPPWVKPF VHPKPPLPPS APSLLPEPPL
     STSPRSSLYP ALTPSLGAKP KPQVLPDSGG PLIDLLTEDP PPYRDPGPPP SDRDRDDGEA
     APAGEAPDPS PMASRLRGRR ELPVADSTTS QAFPLRSGGN GQLQYWPFSS SDLYNWKNNN
     PSFSEDPGKL TALIESVLLT HQPTWDDCQQ LLGTLLTGEE KQRVLLEARK AVRGEDGRPT
     QLPNEINDAF PLERPDWDYN TQRGRNHLVL YRQLLLAGLQ NAGRSPTNLA KVKGITQGPN
     ESPSAFLERL KEAYRRYTPY DPEDPGQETN VSMSFIWQSA PDIGRKLERL EDLKSKTLGD
     LVREAEKIFN KRETPEEREE RIKRETEEKE ERRRAEDEQK EKERDRRRHR EMSKLLATVV
     SGQKQDRQGG ERRRPQLDKD QCAYCKEKGH WAKDCPKKPR GPRGPRPQTS LLALDDQGGR
     GQEPPPEPRI TLKVGGQPVT FLVDTGAQHS VLTQNPGPLS DKSAWVQGAT GGKRYRWTTD
     RKVHLATGKV THSFLHVPDC PYPLLGRDLL TKLNAQIHFE GSGAQVVGPR GQPLQVLTLN
     IEDEYRLHET SKEPDVSLGS TWLSDFPQAW AETGGMGLAV RQAPLIIPLK ATSTPVSIKQ
     YPMSQEARLG IKPHIQRLLD QGILVPCQSP WNTPLLPVKK PGTNDYRPVQ DLREVNKRVE
     DIHPTVPNPY NLLSGLPPSH QWYTVLDLKD AFFCLRLHPT SQPLFAFEWR DPEMGISGQL
     TWTRLPQGFK NSPTLFDEAL HRDLAGFRIQ HPDLILLQYV DDLLLAATSE LDCQQGTRAL
     LQTLGDLGYR ASAKKAQICQ KQVKYLGYLL KEGQRWLTEA RKETVMGQPI PKTPRQLREF
     LGTAGFCRLW IPGFAEMAAP LYPLTKTGTL FNWGPDQQKA FQEIKQALLT APALGLPDLT
     KPFELFVDEK QGYAKGVLTQ KLGPWRRPVA YLSKKLDPVA AGWPPCLRMV AAIAVLTKDA
     GKLTMGQPLV ILAPHAVEAL VKQPPDRWLS NARMTHYQAL LLDTDRVQFG PVVALNPATL
     LPLPEEGLQH DCLDILAEAH GTRSDLMDQP LPDADHTWYT DGSSFLQEGQ RKAGAAVTTE
     TEVIWARALP AGTSAQRAEL IALTQALKMA EGKKLNVYTD SRYAFATAHI HGEIYRRRGL
     LTSEGKEIKN KDEILALLKA LFLPKRLSII HCPGHQKGNS AEARGNRMAD QAAREVATRE
     TPETSTLLIE NSTPYTHEHF HYTVTDTKDL TKLGATYDSA KKYWVYQGKP VMPDQFTFEL
     LDFLHQLTHL SFSKTKALLE RSPSPYYMLN RDRTLKNITE TCKACAQVNA SKSAVKQGTR
     VRGHRPGTHW EIDFTEVKPG LYGYKYLLVF VDTFSGWIEA FPTKKETAKV VTKKLLEEIF
     PRFGMPQVLG TDNGPAFVSK VSQTVADLLG IDWKLHCAYR PQSSGQVERM NRTIKETLTK
     LTLATGSRDW VLLLPLALYR ARNTPGPHGL TPYEILYGAP PPLVNFPDPD MTRVTNSPSL
     QAHLQALYLV QHEVWRPLAA AYQEQLDRPV VPHPYRVGDT VWVRRHQTKN LEPRWKGPYT
     VLLTTPTALK VDGISAWVHA AHVKAATTSP ARTAWKVQRS QNPLKIRLSR EPS
 
 
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