ID   MVP_CMVM                Reviewed;         279 AA.
AC   Q00272;
DT   01-DEC-1992, integrated into UniProtKB/Swiss-Prot.
DT   01-DEC-1992, sequence version 1.
DT   25-MAY-2022, entry version 58.
DE   RecName: Full=Movement protein;
DE            Short=MP;
DE   AltName: Full=Protein 3A;
GN   ORFNames=ORF3a;
OS   Cucumber mosaic virus (strain M) (CMV).
OC   Viruses; Riboviria; Orthornavirae; Kitrinoviricota; Alsuviricetes;
OC   Martellivirales; Bromoviridae; Cucumovirus.
OX   NCBI_TaxID=31718;
OH   NCBI_TaxID=3659; Cucumis sativus (Cucumber).
OH   NCBI_TaxID=3663; Cucurbita pepo (Vegetable marrow) (Summer squash).
OH   NCBI_TaxID=4640; Musa.
OH   NCBI_TaxID=4081; Solanum lycopersicum (Tomato) (Lycopersicon esculentum).
OH   NCBI_TaxID=3562; Spinacia oleracea (Spinach).
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC RNA].
RX   PubMed=2230731; DOI=10.1099/0022-1317-71-10-2243;
RA   Owen J., Shintaku M., Aeschleman P., Tahar S., Palukaitis P.;
RT   "Nucleotide sequence and evolutionary relationships of cucumber mosaic
RT   virus (CMV) strains: CMV RNA 3.";
RL   J. Gen. Virol. 71:2243-2249(1990).
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; D10539; BAA01398.1; -; Genomic_RNA.
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; Transport; Viral movement protein.
FT   CHAIN           1..279
FT                   /note="Movement protein"
FT                   /id="PRO_0000083241"
SQ   SEQUENCE   279 AA;  30619 MW;  8D8CEE4D6B13D831 CRC64;
     MAFQGTSRTL TQQSSAATSD DLQKILFSPE AIKKMATECD LGRHHWMRAD NAISVRPLVP
     EVTHGRIASF FKSGYDVGEL CSKGYMSVPQ VLCAVTRTVS TDAEGSLRIY LADLGDKELS
     PIDGQCVSLH NHDLPALVSF QPTYDCPMET VGNRKRCFAV VIERHGYIGY TGTTASVCSN
     WQARFSSKNN NYTHIAAGKT LVLPFNRLAE QTKPSAVARL LKSQLNNIES SQYLLTNVKI
     NQNARSESED LNVESPPAAI GRFSASRSEA FRPQVVNGL