ID   MVP_TAV                 Reviewed;         277 AA.
AC   P23626;
DT   01-NOV-1991, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1991, sequence version 1.
DT   25-MAY-2022, entry version 68.
DE   RecName: Full=Movement protein;
DE            Short=MP;
DE   AltName: Full=Protein 3A;
GN   ORFNames=ORF3a;
OS   Tomato aspermy virus (TAV).
OC   Viruses; Riboviria; Orthornavirae; Kitrinoviricota; Alsuviricetes;
OC   Martellivirales; Bromoviridae; Cucumovirus.
OX   NCBI_TaxID=12315;
OH   NCBI_TaxID=4627; Canna.
OH   NCBI_TaxID=41568; Chrysanthemum morifolium (Florist's daisy) (Dendranthema grandiflorum).
OH   NCBI_TaxID=4688; Lilium.
OH   NCBI_TaxID=4081; Solanum lycopersicum (Tomato) (Lycopersicon esculentum).
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC RNA].
RC   STRAIN=Chrysanthemum isolate;
RX   PubMed=1990057; DOI=10.1099/0022-1317-72-1-1;
RA   O'Reilly D., Thomas C.J.R., Coutts R.H.A.;
RT   "Tomato aspermy virus has an evolutionary relationship with other
RT   tripartite RNA plant viruses.";
RL   J. Gen. Virol. 72:1-7(1991).
CC   -!- FUNCTION: Transports viral genome to neighboring plant cells directly
CC       through plasmosdesmata, without any budding. The movement protein
CC       allows efficient cell to cell propagation, by bypassing the host cell
CC       wall barrier. Acts by forming a tubular structure at the host
CC       plasmodesmata, enlarging it enough to allow free passage of virion
CC       capsids (By similarity). {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Host cell junction, host plasmodesma
CC       {ECO:0000250}. Note=Assembles into long tubular structures at the
CC       surface of the infected protoplast. {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the cucumovirus movement protein family.
CC       {ECO:0000305}.
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DR   EMBL; D01015; BAA00819.1; -; Genomic_RNA.
DR   PIR; A54334; JQ0927.
DR   Proteomes; UP000007399; Genome.
DR   GO; GO:0044219; C:host cell plasmodesma; IEA:UniProtKB-SubCell.
DR   GO; GO:0046740; P:transport of virus in host, cell to cell; IEA:UniProtKB-KW.
DR   InterPro; IPR000603; MPV.
DR   Pfam; PF00803; 3A; 1.
PE   3: Inferred from homology;
KW   Host cell junction; Reference proteome; Transport; Viral movement protein.
FT   CHAIN           1..277
FT                   /note="Movement protein"
FT                   /id="PRO_0000083252"
SQ   SEQUENCE   277 AA;  30532 MW;  E9045A19A740483D CRC64;
     MAFSGTSRTL TQQSSAASTD ELHNILFSRR AIQEMATKCD LGRHHWMRAD NAVCVRPLVP
     ETTSNLLTRW FVSGYEAGEL PSKGYMSVPQ VLCAVTRTVT SDAEGSLRIY LADLGDKERA
     PIDAQVVSLH NRDLPAIVSF HPTYDCPMEQ LNGVGRCFAL VIERCGYIGH NGTTASVCSN
     WQPKFSSKNN NYKPAAAGKT LVLPYDRLSE LSGPSAVARL LKSQLNMSAS RIQLPGYVFN
     VRYVVSLRIL RNRQSQPNAR VDSEPQVFSK PVVVNGI