ID   G9P_BPIF1               Reviewed;          32 AA.
AC   O80296;
DT   15-JUL-1999, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1998, sequence version 1.
DT   03-AUG-2022, entry version 57.
DE   RecName: Full=Tail virion protein G9P;
DE   AltName: Full=Coat protein C, polypeptide II;
DE   AltName: Full=G9P;
GN   Name=IX;
OS   Escherichia phage If1 (Bacteriophage If1).
OC   Viruses; Monodnaviria; Loebvirae; Hofneiviricota; Faserviricetes;
OC   Tubulavirales; Inoviridae; Infulavirus.
OX   NCBI_TaxID=10868;
OH   NCBI_TaxID=562; Escherichia coli.
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RA   Hill D.F., Hughes G., McNaughton J.C., Stockwell P.A., Petersen G.B.;
RT   "DNA sequence of the filamentous coliphage If1.";
RL   Submitted (OCT-1993) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: May initiate with G7P the virion concomitant assembly-budding
CC       process, by interacting with the packaging signal of the viral genome.
CC       The assembly-budding takes place at the host inner membrane. In turn,
CC       G7P and G9P are present at the end of the filamentous virion that
CC       emerges first from the bacterial host (By similarity). {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Virion {ECO:0000305}. Host membrane
CC       {ECO:0000305}; Single-pass membrane protein {ECO:0000305}. Note=Prior
CC       to assembly, is found associated with the bacterial host inner
CC       membrane. There are about five copies of this protein per mature phage
CC       that are located on the tail side of the filamentous virion with G7P
CC       (By similarity). {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the inovirus G9P protein family. {ECO:0000305}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; U02303; AAC62153.1; -; Genomic_DNA.
DR   RefSeq; NP_047354.1; NC_001954.1.
DR   SMR; O80296; -.
DR   GeneID; 1261853; -.
DR   KEGG; vg:1261853; -.
DR   Proteomes; UP000001833; Genome.
DR   GO; GO:0033644; C:host cell membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
PE   3: Inferred from homology;
KW   Host membrane; Membrane; Reference proteome; Transmembrane;
KW   Transmembrane helix; Virion.
FT   CHAIN           1..32
FT                   /note="Tail virion protein G9P"
FT                   /id="PRO_0000098185"
FT   TRANSMEM        4..24
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   32 AA;  3599 MW;  F5A9A4FD22F44F1B CRC64;
     MSALSYFFAA YCIGWVISHS ILVFKKLSEV ST