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G3_VAR67
ID   G3_VAR67                Reviewed;         111 AA.
AC   P0DOM3; P32993;
DT   16-OCT-2019, integrated into UniProtKB/Swiss-Prot.
DT   16-OCT-2019, sequence version 1.
DT   25-MAY-2022, entry version 7.
DE   RecName: Full=Protein G3;
GN   ORFNames=G3L;
OS   Variola virus (isolate Human/India/Ind3/1967) (VARV) (Smallpox virus).
OC   Viruses; Varidnaviria; Bamfordvirae; Nucleocytoviricota; Pokkesviricetes;
OC   Chitovirales; Poxviridae; Chordopoxvirinae; Orthopoxvirus.
OX   NCBI_TaxID=587200;
OH   NCBI_TaxID=9606; Homo sapiens (Human).
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=8109158; DOI=10.1016/0168-1702(93)90093-3;
RA   Shchelkunov S.N., Blinov V.M., Resenchuk S.M., Totmenin A.V.,
RA   Sandakhchiev L.S.;
RT   "Analysis of the nucleotide sequence of a 43 kbp segment of the genome of
RT   variola virus India-1967 strain.";
RL   Virus Res. 30:239-258(1993).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=8383392; DOI=10.1016/0168-1702(93)90110-9;
RA   Shchelkunov S.N., Blinov V.M., Totmenin A.V., Marennikova S.S.,
RA   Kolykhalov A.A., Frolov I.V., Chizhikov V.E., Gytorov V.V., Gashikov P.V.,
RA   Belanov E.F., Belavin P.A., Resenchuk S.M., Andzhaparidze O.G.,
RA   Sandakhchiev L.S.;
RT   "Nucleotide sequence analysis of variola virus HindIII M, L, I genome
RT   fragments.";
RL   Virus Res. 27:25-35(1993).
RN   [3]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=8384129; DOI=10.1016/0014-5793(93)80041-r;
RA   Shchelkunov S.N., Blinov V.M., Sandakhchiev L.S.;
RT   "Genes of variola and vaccinia viruses necessary to overcome the host
RT   protective mechanisms.";
RL   FEBS Lett. 319:80-83(1993).
CC   -!- FUNCTION: Envelope protein part of the entry-fusion complex responsible
CC       for the virus membrane fusion with host cell membrane during virus
CC       entry. Also plays a role in cell-cell fusion (syncytium formation) (By
CC       similarity). {ECO:0000250}.
CC   -!- SUBUNIT: Part of a stable entry-fusion complex (EFC) which is at least
CC       composed of proteins A16, A21, A28, G3, G9, H2, J5, and L5. Formation
CC       of the viral membrane is necessary for the assembly of the complex.
CC       Interacts with L5 (By similarity). {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Virion membrane {ECO:0000305}; Single-pass
CC       membrane protein {ECO:0000305}. Note=Component of the mature virion
CC       (MV) membrane. {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the chordopoxvirinae G3 family. {ECO:0000305}.
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DR   EMBL; X67119; CAA47564.1; -; Genomic_DNA.
DR   EMBL; X69198; CAA49005.1; -; Genomic_DNA.
DR   PIR; S33079; S33079.
DR   RefSeq; NP_042108.1; NC_001611.1.
DR   SMR; P0DOM3; -.
DR   GeneID; 1486430; -.
DR   KEGG; vg:1486430; -.
DR   Proteomes; UP000002060; Genome.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0019031; C:viral envelope; IEA:UniProtKB-KW.
DR   GO; GO:0055036; C:virion membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0019064; P:fusion of virus membrane with host plasma membrane; IEA:UniProtKB-KW.
DR   GO; GO:0046718; P:viral entry into host cell; IEA:UniProtKB-KW.
DR   InterPro; IPR010367; Poxvirus_G3.
DR   Pfam; PF06129; Chordopox_G3; 1.
PE   3: Inferred from homology;
KW   Fusion of virus membrane with host cell membrane;
KW   Fusion of virus membrane with host membrane; Membrane; Reference proteome;
KW   Signal-anchor; Transmembrane; Transmembrane helix; Viral envelope protein;
KW   Viral penetration into host cytoplasm; Virion; Virus entry into host cell.
FT   CHAIN           1..111
FT                   /note="Protein G3"
FT                   /id="PRO_0000099529"
FT   TRANSMEM        1..21
FT                   /note="Helical; Signal-anchor"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        22..111
FT                   /note="Virion surface"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   111 AA;  12820 MW;  ED1FBAC61B0CC0EB CRC64;
     MASLLYFILF LLFVCISYYF TYYPTNKLQA AVMETDRENA IIIQRNDEIP TRTLDTAIFT
     DASTVASAQI YLYYNSNIGK IIMSLNGKKH TFNLYDDNDI RTLLPILLLS K
 
 
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