ID   TGB3_SMYEA              Reviewed;          75 AA.
AC   Q00848;
DT   01-JUL-1993, integrated into UniProtKB/Swiss-Prot.
DT   01-JUL-1993, sequence version 1.
DT   23-FEB-2022, entry version 44.
DE   RecName: Full=Movement protein TGBp3;
DE   AltName: Full=8.1 kDa protein;
DE   AltName: Full=Triple gene block 3 protein;
DE            Short=TGBp3;
GN   ORFNames=ORF4;
OS   Strawberry mild yellow edge-associated virus (SMYEaV).
OC   Viruses; Riboviria; Orthornavirae; Kitrinoviricota; Alsuviricetes;
OC   Tymovirales; Alphaflexiviridae; Potexvirus.
OX   NCBI_TaxID=12187;
OH   NCBI_TaxID=63459; Chenopodium quinoa (Quinoa).
OH   NCBI_TaxID=57918; Fragaria vesca (Woodland strawberry) (Potentilla vesca).
OH   NCBI_TaxID=59498; Rubus rosifolius.
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC RNA].
RC   STRAIN=MY-18;
RX   PubMed=1339469; DOI=10.1099/0022-1317-73-2-475;
RA   Jelkmann W., Maiss E., Martin R.R.;
RT   "The nucleotide sequence and genome organization of strawberry mild yellow
RT   edge-associated potexvirus.";
RL   J. Gen. Virol. 73:475-479(1992).
CC   -!- FUNCTION: Plays a role in viral cell-to-cell propagation, by
CC       facilitating genome transport to neighboring plant cells through
CC       plasmosdesmata. May induce the formation of granular vesicles derived
CC       from the Endoplasmic reticulum, which align on actin filaments (By
CC       similarity). {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Host endoplasmic reticulum membrane
CC       {ECO:0000250}.
CC   -!- MISCELLANEOUS: TGBp1, TGBp2 and TGBp3 seem to act together for cell-to-
CC       cell propagation. TGBp1 is the main movement protein that physically
CC       cross the plasmodesma with the viral genome. TGBp2 and TGBp3 would
CC       facilitate TGBp1 function.
CC   -!- SIMILARITY: Belongs to the Tymovirales TGBp3 protein family.
CC       {ECO:0000305}.
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DR   EMBL; D12517; BAA02085.1; -; Genomic_RNA.
DR   PIR; JQ1429; JQ1429.
DR   RefSeq; NP_620645.1; NC_003794.1.
DR   GeneID; 944371; -.
DR   KEGG; vg:944371; -.
DR   Proteomes; UP000007225; Genome.
DR   GO; GO:0044167; C:host cell endoplasmic reticulum membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0046740; P:transport of virus in host, cell to cell; IEA:UniProtKB-KW.
DR   InterPro; IPR003411; TGBp3.
DR   Pfam; PF02495; TGBp3; 1.
PE   3: Inferred from homology;
KW   Host endoplasmic reticulum; Host membrane; Membrane; Reference proteome;
KW   Transmembrane; Transmembrane helix; Transport; Viral movement protein.
FT   CHAIN           1..75
FT                   /note="Movement protein TGBp3"
FT                   /id="PRO_0000222649"
FT   TOPO_DOM        1..2
FT                   /note="Lumenal"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        3..23
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        24..75
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   75 AA;  8088 MW;  48FAA1629B36FD5B CRC64;
     MRVLDLILAL ITAAVVGYTI ALVSNSGCYV HFDGRSATTT CPPGPWVESI ANGLYTAGLA
     RPHPEPECER RQSSW