ID   P3A_TYYVF               Reviewed;          45 AA.
AC   P0DJZ8;
DT   09-DEC-2015, integrated into UniProtKB/Swiss-Prot.
DT   25-MAY-2022, sequence version 2.
DT   03-AUG-2022, entry version 16.
DE   RecName: Full=P3a;
DE   AltName: Full=Protein ORF3a;
GN   Name=ORF3a {ECO:0000305};
OS   Turnip yellows virus (isolate FL-1) (TuYV) (BWYV-FL1).
OC   Viruses; Riboviria; Orthornavirae; Pisuviricota; Pisoniviricetes;
OC   Sobelivirales; Solemoviridae; Polerovirus.
OX   NCBI_TaxID=12043;
OH   NCBI_TaxID=161934; Beta vulgaris (Sugar beet).
OH   NCBI_TaxID=3709; Brassica napus subsp. rapifera.
OH   NCBI_TaxID=138011; Brassica napus var. napus.
OH   NCBI_TaxID=3710; Brassica nigra (Black mustard) (Sinapis nigra).
OH   NCBI_TaxID=3715; Brassica oleracea var. botrytis (Cauliflower).
OH   NCBI_TaxID=3716; Brassica oleracea var. capitata (Cabbage).
OH   NCBI_TaxID=51350; Brassica rapa subsp. rapa (Turnip).
OH   NCBI_TaxID=4072; Capsicum annuum (Capsicum pepper).
OH   NCBI_TaxID=3827; Cicer arietinum (Chickpea) (Garbanzo).
OH   NCBI_TaxID=3654; Citrullus lanatus (Watermelon) (Citrullus vulgaris).
OH   NCBI_TaxID=3721; Crambe hispanica subsp. abyssinica (Abyssinian kale) (Crambe abyssinica).
OH   NCBI_TaxID=3659; Cucumis sativus (Cucumber).
OH   NCBI_TaxID=3663; Cucurbita pepo (Vegetable marrow) (Summer squash).
OH   NCBI_TaxID=3847; Glycine max (Soybean) (Glycine hispida).
OH   NCBI_TaxID=4232; Helianthus annuus (Common sunflower).
OH   NCBI_TaxID=4236; Lactuca sativa (Garden lettuce).
OH   NCBI_TaxID=103529; Phlox drummondii (Annual phlox).
OH   NCBI_TaxID=3888; Pisum sativum (Garden pea).
OH   NCBI_TaxID=3726; Raphanus sativus (Radish) (Raphanus raphanistrum var. sativus).
OH   NCBI_TaxID=4081; Solanum lycopersicum (Tomato) (Lycopersicon esculentum).
OH   NCBI_TaxID=3562; Spinacia oleracea (Spinach).
OH   NCBI_TaxID=3900; Trifolium subterraneum (Subterranean clover).
OH   NCBI_TaxID=3906; Vicia faba (Broad bean) (Faba vulgaris).
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC RNA].
RX   PubMed=3194229; DOI=10.1093/nar/16.21.9917;
RA   Veidt I., Lot H., Leiser M., Scheidecker D., Guilley H., Richards K.E.,
RA   Jonard G.;
RT   "Nucleotide sequence of beet western yellows virus RNA.";
RL   Nucleic Acids Res. 16:9917-9932(1988).
RN   [2]
RP   FUNCTION, SUBCELLULAR LOCATION, AND IDENTIFICATION.
RX   PubMed=25946037; DOI=10.1371/journal.ppat.1004868;
RA   Smirnova E., Firth A.E., Miller W.A., Scheidecker D., Brault V.,
RA   Reinbold C., Rakotondrafara A.M., Chung B.Y., Ziegler-Graff V.;
RT   "Discovery of a small non-AUG-initiated ORF in Poleroviruses and
RT   Luteoviruses that is required for long-distance movement.";
RL   PLoS Pathog. 11:E1004868-E1004868(2015).
CC   -!- FUNCTION: Together with movement protein P17, plays an essential role
CC       in virus long distance movement. {ECO:0000269|PubMed:25946037}.
CC   -!- SUBCELLULAR LOCATION: Host cell junction, host plasmodesma
CC       {ECO:0000269|PubMed:25946037}. Host Golgi apparatus
CC       {ECO:0000269|PubMed:25946037}. Host chloroplast envelope
CC       {ECO:0000250|UniProtKB:P0DTK2}. Host mitochondrion outer membrane
CC       {ECO:0000250|UniProtKB:P0DTK2}. Note=P3a directs P17 to the
CC       mitochondrial outer membrane while P17 regulates the localization of
CC       the P3a-P17 heterodimer to plastids. {ECO:0000250|UniProtKB:P0DTK2}.
CC   -!- SIMILARITY: Belongs to the polerovirus movement protein P3a family.
CC       {ECO:0000305}.
CC   -!- CAUTION: This sequence initiates at a non-canonical ACG threonine
CC       codon. {ECO:0000269|PubMed:25946037}.
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DR   EMBL; X13063; -; NOT_ANNOTATED_CDS; Genomic_RNA.
DR   SMR; P0DJZ8; -.
DR   Proteomes; UP000007545; Genome.
DR   GO; GO:0044177; C:host cell Golgi apparatus; IEA:UniProtKB-SubCell.
DR   GO; GO:0044193; C:host cell mitochondrial outer membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0044219; C:host cell plasmodesma; IEA:UniProtKB-SubCell.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
PE   3: Inferred from homology;
KW   Host cell junction; Host Golgi apparatus; Host membrane;
KW   Host mitochondrion; Host mitochondrion outer membrane; Membrane;
KW   Reference proteome; Transmembrane; Transmembrane helix.
FT   CHAIN           1..45
FT                   /note="P3a"
FT                   /id="PRO_0000434885"
FT   TRANSMEM        9..29
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   45 AA;  5129 MW;  6A2B665E2D32BFCC CRC64;
     MDYKFLAGFA AGFVSSIPIS VISIYFIYLR ISKHVREIVN EYGRG