ID   G6P_BPPF1               Reviewed;         141 AA.
AC   Q38066;
DT   07-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1996, sequence version 1.
DT   29-SEP-2021, entry version 65.
DE   RecName: Full=Head virion protein G6P;
DE   AltName: Full=Coat protein D;
DE   AltName: Full=G6P;
GN   Name=VI;
OS   Pseudomonas phage Pf1 (Bacteriophage Pf1).
OC   Viruses; Monodnaviria; Loebvirae; Hofneiviricota; Faserviricetes;
OC   Tubulavirales; Inoviridae; Primolicivirus.
OX   NCBI_TaxID=2011081;
OH   NCBI_TaxID=287; Pseudomonas aeruginosa.
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=2010913; DOI=10.1016/0022-2836(91)90717-k;
RA   Hill D.F., Short N.J., Perham R.N., Petersen G.B.;
RT   "DNA sequence of the filamentous bacteriophage Pf1.";
RL   J. Mol. Biol. 218:349-364(1991).
CC   -!- FUNCTION: Plays essential roles both in the entry of the viral genome
CC       into the bacterial host and in budding process. The formation of the
CC       G3P-G6P complex termed adsorption complex is essential for correct
CC       termination of filamentous phage assembly (By similarity).
CC       {ECO:0000250}.
CC   -!- SUBUNIT: Interacts with G3P; this interaction is required for proper
CC       integration of G3P and G6P into the virion. {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Virion {ECO:0000305}. Host membrane
CC       {ECO:0000305}; Multi-pass membrane protein {ECO:0000305}. Note=Prior to
CC       assembly, G6P is found associated with the bacterial host inner
CC       membrane. There are about five copies of G6P in the mature virion. They
CC       are located together with G3P at the head side of the filamentous
CC       virion (By similarity). {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the inovirus G6P protein family. {ECO:0000305}.
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DR   EMBL; X52107; CAA36333.1; -; Genomic_DNA.
DR   PIR; S15145; S15145.
DR   Proteomes; UP000002121; Genome.
DR   GO; GO:0033644; C:host cell membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0039667; P:viral entry into host cell via pilus retraction; IEA:UniProtKB-KW.
DR   InterPro; IPR019670; DUF2523.
DR   Pfam; PF10734; DUF2523; 1.
PE   3: Inferred from homology;
KW   Host membrane; Membrane; Reference proteome; Transmembrane;
KW   Transmembrane helix; Viral penetration into host cytoplasm;
KW   Viral penetration into host cytoplasm via pilus retraction; Virion;
KW   Virus entry into host cell.
FT   CHAIN           1..141
FT                   /note="Head virion protein G6P"
FT                   /id="PRO_0000378350"
FT   TRANSMEM        3..23
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        33..53
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        80..100
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   141 AA;  15791 MW;  33C6B0F6B3A1A4CE CRC64;
     MEWLSGFLDQ IIAFFQWIWD FFAQGIYDFV RDGLVVATKA SMYAALQTLI LLIDVSYTAA
     RELIDSLGVP QMIRSMYAAL PGPIAAGLAF FGVPQALNII MGRGGDALLH ALRAVHWEVI
     RVDQDPSRPQ WLLQNLRRDP G