ID   PORTL_BPN4              Reviewed;         763 AA.
AC   A0MZE1;
DT   29-APR-2015, integrated into UniProtKB/Swiss-Prot.
DT   12-DEC-2006, sequence version 1.
DT   29-SEP-2021, entry version 34.
DE   RecName: Full=Probable portal protein {ECO:0000305};
DE   AltName: Full=94 kDa protein {ECO:0000312|EMBL:ABK54420.1};
DE   AltName: Full=Gene product 59 {ECO:0000305};
DE            Short=gp59;
DE   AltName: Full=Head-to-tail connector {ECO:0000305};
GN   Name=59;
OS   Enterobacteria phage N4 (Bacteriophage N4).
OC   Viruses; Duplodnaviria; Heunggongvirae; Uroviricota; Caudoviricetes;
OC   Caudovirales; Schitoviridae; Enquatrovirinae; Enquatrovirus.
OX   NCBI_TaxID=10752 {ECO:0000312|Proteomes:UP000001789};
OH   NCBI_TaxID=562; Escherichia coli.
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RA   Hendrix R.W., Rothman-Denes L., Hatfull G.F., Lawrence J.G., Pedulla M.;
RT   "Genome sequence and analysis of bacteriophage N4.";
RL   Submitted (NOV-2006) to the EMBL/GenBank/DDBJ databases.
RN   [2]
RP   FUNCTION, AND SUBCELLULAR LOCATION.
RX   PubMed=18374942; DOI=10.1016/j.jmb.2008.02.059;
RA   Choi K.H., McPartland J., Kaganman I., Bowman V.D., Rothman-Denes L.B.,
RA   Rossmann M.G.;
RT   "Insight into DNA and protein transport in double-stranded DNA viruses: the
RT   structure of bacteriophage N4.";
RL   J. Mol. Biol. 378:726-736(2008).
CC   -!- FUNCTION: Forms the portal vertex of the capsid. This portal plays
CC       critical roles in head assembly, genome packaging, neck/tail
CC       attachment, and genome ejection. The portal protein multimerizes as a
CC       single ring-shaped homododecamer arranged around a central channel.
CC       {ECO:0000305|PubMed:18374942}.
CC   -!- SUBUNIT: Homododecamer. {ECO:0000250|UniProtKB:P04332}.
CC   -!- SUBCELLULAR LOCATION: Virion {ECO:0000269|PubMed:18374942}.
CC       Note=Present in about 17 copies in the virion.
CC       {ECO:0000269|PubMed:18374942}.
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DR   EMBL; EF056009; ABK54420.1; -; Genomic_DNA.
DR   RefSeq; YP_950537.1; NC_008720.1.
DR   GeneID; 5075648; -.
DR   KEGG; vg:5075648; -.
DR   Proteomes; UP000001789; Genome.
DR   GO; GO:0099002; P:viral genome ejection through host cell envelope, short tail mechanism; IEA:UniProtKB-KW.
PE   3: Inferred from homology;
KW   Late protein; Reference proteome; Viral capsid assembly;
KW   Viral genome ejection through host cell envelope; Viral genome packaging;
KW   Viral penetration into host cytoplasm; Viral release from host cell;
KW   Viral short tail ejection system; Virion; Virus entry into host cell.
FT   CHAIN           1..763
FT                   /note="Probable portal protein"
FT                   /id="PRO_0000432923"
FT   REGION          668..706
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          729..763
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   763 AA;  85545 MW;  37F4D93C02A26EBD CRC64;
     MEQNTDSMVP LPDPSQATKL TSWKNELSLQ ALKADLDAAK PSHTAMMIKV KEWNDLMRIE
     GKAKPPKVKG RSQVQPKLVR RQAEWRYSAL TEPFLGSNKL FKVTPVTWED VQGARQNELV
     LNYQFRTKLN RVSFIDNYVR SVVDDGTGIV RVGWNREIRK EKQEVPVFSL FPIQTQEQAD
     ALQQALQLRT DNPRGYEENV DEAIKESVRF FDETGQATYA VQTGTTTTEV EVPLANHPTV
     EMLNPENIII DPSCQGDINK AMFAIVSFET CKADLLKEKD RYHNLNKIDW QSSAPVNEPD
     HATTTPQEFQ ISDPMRKRVV AYEYWGFWDI EGNGVLEPIV ATWIGSTLIR LEKNPYPDGK
     LPFVLIPYMP VKRDMYGEPD AELLGDNQAV LGAVMRGMID LLGRSANGQR GMPKGMLDAL
     NSRRYREGED YEYNPTQNPA QMIIEHKFPE LPQSALTMAT LQNQEAESLT GVKAFAGGVT
     GESYGDVAAG IRGVLDAASK REMAILRRLA KGMSEIGNKI IAMNAVFLAE HEVVRITNEE
     FVTIKREDLK GNFDLEVDIS TAEVDNQKSQ DLGFMLQTIG PNVDQQITLN ILAEIADLKR
     MPKLAHDLRT WQPQPDPVQE QLKQLAVEKA QLENEELRSK IRLNDAQAQK AMAERDNKNL
     DYLEQESGTK HARDLEKMKA QSQGNQQLEI TKALTKPRKE GELPPNLSAA IGYNALTNGE
     DTGIQSVSER DIAAEANPAY SLGSSQFDPT RDPALNPGIR LGN