TGB2_PVSP
ID TGB2_PVSP Reviewed; 108 AA.
AC P16651;
DT 01-AUG-1990, integrated into UniProtKB/Swiss-Prot.
DT 01-AUG-1990, sequence version 1.
DT 07-OCT-2020, entry version 61.
DE RecName: Full=Movement protein TGB2;
DE AltName: Full=12 kDa protein;
DE AltName: Full=Triple gene block 2 protein;
DE Short=TGBp2;
GN ORFNames=ORF3;
OS Potato virus S (strain Peruvian).
OC Viruses; Riboviria; Orthornavirae; Kitrinoviricota; Alsuviricetes;
OC Tymovirales; Betaflexiviridae; Quinvirinae; Carlavirus.
OX NCBI_TaxID=12170;
OH NCBI_TaxID=4113; Solanum tuberosum (Potato).
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC RNA].
RX PubMed=2732711; DOI=10.1099/0022-1317-70-5-1053;
RA Mackenzie D.J., Tremaine J.H., Stace-Smith R.;
RT "Organization and interviral homologies of the 3'-terminal portion of
RT potato virus S RNA.";
RL J. Gen. Virol. 70:1053-1063(1989).
CC -!- FUNCTION: Plays a role in viral cell-to-cell propagation, by
CC facilitating genome transport to neighboring plant cells through
CC plasmosdesmata,. {ECO:0000250}.
CC -!- SUBCELLULAR LOCATION: Host endoplasmic reticulum membrane
CC {ECO:0000250}.
CC -!- MISCELLANEOUS: TGBp1, TGBp2 and TGBp3 seem to act together for cell-to-
CC cell propagation. TGBp1 is the main movement protein that physically
CC cross the plasmodesma with the viral genome. TGBp2 and TGBp3 would
CC facilitate TGBp1 function.
CC -!- SIMILARITY: Belongs to the Tymovirales TGBp2 protein family.
CC {ECO:0000305}.
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DR EMBL; D00461; BAA00352.1; -; Genomic_RNA.
DR PIR; JA0125; JA0125.
DR GO; GO:0044167; C:host cell endoplasmic reticulum membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR GO; GO:0046740; P:transport of virus in host, cell to cell; IEA:UniProtKB-KW.
DR InterPro; IPR001896; Plant_vir_prot.
DR Pfam; PF01307; Plant_vir_prot; 1.
PE 3: Inferred from homology;
KW Host endoplasmic reticulum; Host membrane; Membrane; Transmembrane;
KW Transmembrane helix; Transport; Viral movement protein.
FT CHAIN 1..108
FT /note="Movement protein TGB2"
FT /id="PRO_0000222598"
FT TOPO_DOM 1..8
FT /note="Cytoplasmic"
FT /evidence="ECO:0000250"
FT TRANSMEM 9..29
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TOPO_DOM 30..72
FT /note="Lumenal"
FT /evidence="ECO:0000250"
FT TRANSMEM 73..93
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TOPO_DOM 94..108
FT /note="Cytoplasmic"
FT /evidence="ECO:0000250"
SQ SEQUENCE 108 AA; 11819 MW; DCD9AA9B07906A66 CRC64;
MPLTPPPNYT GLYIAAALGV SLAAVVALFT RSTLPIVGDS QHNLPHGGRY RDGTKAIDYF
KPTKLNSVEP GNYWYTQPWL LVILLVALIC LSGRHAQCCP RCNRVHSA