ID   P64_BYVU                Reviewed;         553 AA.
AC   Q08541; Q66110;
DT   04-DEC-2007, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1996, sequence version 1.
DT   29-SEP-2021, entry version 51.
DE   RecName: Full=64 kDa protein;
DE   AltName: Full=p64;
GN   ORFNames=ORF4;
OS   Beet yellows virus (isolate Ukraine) (BYV) (Sugar beet yellows virus).
OC   Viruses; Riboviria; Orthornavirae; Kitrinoviricota; Alsuviricetes;
OC   Martellivirales; Closteroviridae; Closterovirus.
OX   NCBI_TaxID=478555;
OH   NCBI_TaxID=161934; Beta vulgaris (Sugar beet).
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC RNA].
RX   PubMed=1990061; DOI=10.1099/0022-1317-72-1-15;
RA   Agranovsky A.A., Boyko V.P., Karasev A.V., Lunina N.A., Koonin E.V.,
RA   Dolja V.V.;
RT   "Nucleotide sequence of the 3'-terminal half of beet yellows closterovirus
RT   RNA genome: unique arrangement of eight virus genes.";
RL   J. Gen. Virol. 72:15-23(1991).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [GENOMIC RNA].
RX   PubMed=8259666; DOI=10.1006/viro.1994.1034;
RA   Agranovsky A.A., Koonin E.V., Boyko V.P., Maiss E., Froetschl R.,
RA   Lunina N.A., Atabekov J.G.;
RT   "Beet yellows closterovirus: complete genome structure and identification
RT   of a leader papain-like thiol protease.";
RL   Virology 198:311-324(1994).
RN   [3]
RP   SUBCELLULAR LOCATION.
RX   PubMed=12551975; DOI=10.1128/jvi.77.4.2377-2384.2003;
RA   Napuli A.J., Alzhanova D.V., Doneanu C.E., Barofsky D.F., Koonin E.V.,
RA   Dolja V.V.;
RT   "The 64-kilodalton capsid protein homolog of Beet yellows virus is required
RT   for assembly of virion tails.";
RL   J. Virol. 77:2377-2384(2003).
RN   [4]
RP   FUNCTION.
RX   PubMed=17027895; DOI=10.1016/j.virol.2006.09.007;
RA   Alzhanova D.V., Prokhnevsky A.I., Peremyslov V.V., Dolja V.V.;
RT   "Virion tails of Beet yellows virus: coordinated assembly by three
RT   structural proteins.";
RL   Virology 359:220-226(2007).
CC   -!- FUNCTION: Movement protein that is involved in local cell-cell movement
CC       via plamodesmata. At least five viral proteins, CP, CPm, p6, p64 and
CC       Hsp70h are essential for cell-cell movement. Also plays a role in
CC       virion formation. Together with Hsp70h and CPm, encapsidates the 5'-
CC       terminal portion of the viral genome. {ECO:0000269|PubMed:17027895}.
CC   -!- SUBCELLULAR LOCATION: Virion {ECO:0000269|PubMed:12551975}.
CC       Note=Integral virion tail component. The N-terminus is exposed at the
CC       virion surface, whereas the C-terminus is embedded in the virion.
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DR   EMBL; X53462; CAA37552.1; -; Genomic_RNA.
DR   EMBL; X73476; CAA51866.1; -; Genomic_RNA.
DR   RefSeq; NP_041873.1; NC_001598.1.
DR   GeneID; 1724786; -.
DR   KEGG; vg:1724786; -.
DR   Proteomes; UP000000359; Genome.
DR   GO; GO:0046740; P:transport of virus in host, cell to cell; IEA:UniProtKB-KW.
DR   InterPro; IPR004909; Vir_Hsp90.
DR   Pfam; PF03225; Viral_Hsp90; 1.
PE   4: Predicted;
KW   Reference proteome; Transport; Viral movement protein; Virion.
FT   CHAIN           1..553
FT                   /note="64 kDa protein"
FT                   /id="PRO_0000312566"
FT   CONFLICT        499
FT                   /note="G -> R (in Ref. 1; CAA37552)"
FT                   /evidence="ECO:0000305"
SQ   SEQUENCE   553 AA;  63905 MW;  E7811795E2681804 CRC64;
     MTTRFSTPAN YYWGELFRRF FGGQEWKNLM SEAASVSRPR YSSDFRFSDG VILSRKTFGE
     STGESFVREF SLLLTFPKTY EVCKLCGVAM ELALNGMNRL SDYNVSEFNI VDVKTVGCKF
     NIQSVTEFVK KINGNVAEPS LVEHCWSLSN SCGELINPKD TKRFVSLIFK GKDLAESTDE
     AIVSSSYLDY LSHCLNLYET CNLSSNSGKK SLYDEFLKHV IDYLENSDLE YRSPSDNPLV
     AGILYDMCFE YNTLKSTYLK NIESFDCFLS LYLPLLSEVF SMNWERPAPD VRLLFELDAA
     ELLLKVPTIN MHDSTFLYKN KLRYLESYFE DDSNELIKVK VDSLLTRDNP ELKLAQRWVG
     FHCYYGVFRT AQTRKVKRDA EYKLPPALGE FVINMSGVEE FFEELQKKMP SISVRRRFCG
     SLSHEAFSVF KRFGVGFPPI TRLNVPVKYS YLNVDYYRHV KRVGLTQDEL TILSNIEFDV
     AEMCCEREVA LQARRAQRGE KPFQGWKGTK NEISPHARSS IRVKKNNDSL LNILWKDVGA
     RSQRRLNPLH RKH