ID   MVP_AMVST               Reviewed;         300 AA.
AC   P03596;
DT   21-JUL-1986, integrated into UniProtKB/Swiss-Prot.
DT   21-JUL-1986, sequence version 1.
DT   03-AUG-2022, entry version 63.
DE   RecName: Full=Movement protein;
DE            Short=MP;
DE   AltName: Full=Protein 3A;
GN   ORFNames=ORF3a;
OS   Alfalfa mosaic virus (strain Strasbourg).
OC   Viruses; Riboviria; Orthornavirae; Kitrinoviricota; Alsuviricetes;
OC   Martellivirales; Bromoviridae; Alfamovirus.
OX   NCBI_TaxID=12324;
OH   NCBI_TaxID=4045; Apium graveolens (Celery).
OH   NCBI_TaxID=83862; Astragalus glycyphyllos (Wild liquorice).
OH   NCBI_TaxID=4072; Capsicum annuum (Capsicum pepper).
OH   NCBI_TaxID=41386; Caryopteris incana.
OH   NCBI_TaxID=3827; Cicer arietinum (Chickpea) (Garbanzo).
OH   NCBI_TaxID=3847; Glycine max (Soybean) (Glycine hispida).
OH   NCBI_TaxID=35936; Lablab purpureus (Hyacinth bean) (Dolichos lablab).
OH   NCBI_TaxID=4236; Lactuca sativa (Garden lettuce).
OH   NCBI_TaxID=3864; Lens culinaris (Lentil) (Cicer lens).
OH   NCBI_TaxID=3869; Lupinus.
OH   NCBI_TaxID=145753; Malva parviflora (Little mallow) (Cheeseweed mallow).
OH   NCBI_TaxID=3879; Medicago sativa (Alfalfa).
OH   NCBI_TaxID=4097; Nicotiana tabacum (Common tobacco).
OH   NCBI_TaxID=3885; Phaseolus vulgaris (Kidney bean) (French bean).
OH   NCBI_TaxID=23113; Philadelphus.
OH   NCBI_TaxID=3888; Pisum sativum (Garden pea).
OH   NCBI_TaxID=4081; Solanum lycopersicum (Tomato) (Lycopersicon esculentum).
OH   NCBI_TaxID=4113; Solanum tuberosum (Potato).
OH   NCBI_TaxID=157662; Teramnus repens.
OH   NCBI_TaxID=60916; Trifolium incarnatum (Crimson clover).
OH   NCBI_TaxID=85293; Viburnum opulus (High-bush cranberry).
OH   NCBI_TaxID=3916; Vigna radiata var. radiata (Mung bean) (Phaseolus aureus).
OH   NCBI_TaxID=3917; Vigna unguiculata (Cowpea).
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC RNA].
RX   PubMed=6205697; DOI=10.1016/0300-9084(84)90023-3;
RA   Ravelonandro M., Pinck M., Pinck L.;
RT   "Complete nucleotide sequence of RNA 3 from alfalfa mosaic virus, strain
RT   S.";
RL   Biochimie 66:395-402(1984).
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 alfamovirus movement protein family.
CC       {ECO:0000305}.
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DR   EMBL; X00819; CAA25392.1; -; Genomic_RNA.
DR   PIR; A04204; WMBV3S.
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; IPR002538; Bromo_MP.
DR   Pfam; PF01573; Bromo_MP; 1.
PE   3: Inferred from homology;
KW   Host cell junction; Transport; Viral movement protein.
FT   CHAIN           1..300
FT                   /note="Movement protein"
FT                   /id="PRO_0000083228"
SQ   SEQUENCE   300 AA;  32479 MW;  14C8CCA6DA51470E CRC64;
     MENTKTNASS SGMFSSSSFS VSYAEEMLLA DEVSKINSMS ILGPNQLKLC TQLVLSNGAA
     PVVLSLVSKE KKSISNRMLP KIGQRMYVHH SAIYLLYMPN ILKSSSGSIT LKLFNEATEE
     LVDVDTDHDA TQACIFAGRY PRSILAKDAA KGHDLKLVVH AVASTKANSA VGVLYPIWED
     ELSRKQILER GADFLKFPIA ETEPVRDLLN AGKLTNFVLD RTRLGVGSKS DPSPVLLEPR
     AKITGKAKTF FIPEGPSVPN TTISGIAPSV RIDAGSPKGL GVPKGFTYES FIKDEILPDH