ID   PKG9_BPPRD              Reviewed;         227 AA.
AC   P27381; Q3T4N5;
DT   01-AUG-1992, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 3.
DT   03-AUG-2022, entry version 78.
DE   RecName: Full=DNA packaging ATPase P9;
DE   AltName: Full=Protein P9;
GN   Name=IX;
OS   Enterobacteria phage PRD1 (Bacteriophage PRD1).
OC   Viruses; Varidnaviria; Bamfordvirae; Preplasmiviricota; Tectiliviricetes;
OC   Kalamavirales; Tectiviridae; Alphatectivirus.
OX   NCBI_TaxID=10658;
OH   NCBI_TaxID=471; Acinetobacter calcoaceticus.
OH   NCBI_TaxID=562; Escherichia coli.
OH   NCBI_TaxID=584; Proteus mirabilis.
OH   NCBI_TaxID=287; Pseudomonas aeruginosa.
OH   NCBI_TaxID=294; Pseudomonas fluorescens.
OH   NCBI_TaxID=303; Pseudomonas putida (Arthrobacter siderocapsulatus).
OH   NCBI_TaxID=90371; Salmonella typhimurium.
OH   NCBI_TaxID=666; Vibrio cholerae.
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA], AND PROTEIN SEQUENCE OF 2-7.
RX   PubMed=1853567; DOI=10.1016/0042-6822(91)90995-n;
RA   Bamford J.K.H., Haenninen A.-L., Pakula T.M., Ojala P.M., Kalkkinen N.,
RA   Frilander M., Bamford D.H.;
RT   "Genome organization of membrane-containing bacteriophage PRD1.";
RL   Virology 183:658-676(1991).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=15946683; DOI=10.1016/j.jmb.2005.04.059;
RA   Saren A.M., Ravantti J.J., Benson S.D., Burnett R.M., Paulin L.,
RA   Bamford D.H., Bamford J.K.H.;
RT   "A snapshot of viral evolution from genome analysis of the tectiviridae
RT   family.";
RL   J. Mol. Biol. 350:427-440(2005).
RN   [3]
RP   IDENTIFICATION IN THE PORTAL COMPLEX.
RX   PubMed=15826659; DOI=10.1016/j.jmb.2005.03.002;
RA   Stromsten N.J., Bamford D.H., Bamford J.K.H.;
RT   "In vitro DNA packaging of PRD1: a common mechanism for internal-membrane
RT   viruses.";
RL   J. Mol. Biol. 348:617-629(2005).
RN   [4]
RP   FUNCTION, SUBUNIT, IDENTIFICATION IN THE PORTAL COMPLEX, AND SUBCELLULAR
RP   LOCATION.
RX   PubMed=25514469; DOI=10.1371/journal.pbio.1002024;
RA   Hong C., Oksanen H.M., Liu X., Jakana J., Bamford D.H., Chiu W.;
RT   "A structural model of the genome packaging process in a membrane-
RT   containing double stranded DNA virus.";
RL   PLoS Biol. 12:E1002024-E1002024(2014).
CC   -!- FUNCTION: Together with the packaging efficiency factor P6, forms the
CC       external part of the portal vertex that is embeded in the capsid and
CC       which plays critical roles in genome packaging and genome ejection.
CC       Both proteins multimerize as a single ring-shaped heterdodecamer
CC       arranged around a central channel. {ECO:0000269|PubMed:25514469}.
CC   -!- SUBUNIT: Heterodimer of P6 and P9; further multimerizes as hexamers of
CC       heterodimers. Part of the dodecameric portal complex that is composed
CC       of the packaging efficiency factor P6, the DNA packaging ATPase P9, and
CC       the internal heterododecamer P20/P22 which spans the virion inner
CC       membrane. {ECO:0000269|PubMed:15826659, ECO:0000269|PubMed:25514469}.
CC   -!- SUBCELLULAR LOCATION: Virion. Note=Component of the capsid. Localizes
CC       at the unique vertex of the capsid, which extends to the internal
CC       membrane via two small integral membrane proteins, P20 and P22.
CC       {ECO:0000269|PubMed:25514469}.
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DR   EMBL; AY848689; AAX45927.1; -; Genomic_DNA.
DR   PIR; I40477; WMBPQ9.
DR   RefSeq; NP_040689.1; NC_001421.2.
DR   SMR; P27381; -.
DR   Proteomes; UP000002143; Genome.
DR   GO; GO:0019028; C:viral capsid; IEA:UniProtKB-KW.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR   GO; GO:0019073; P:viral DNA genome packaging; IDA:CACAO.
DR   Gene3D; 3.40.50.300; -; 1.
DR   InterPro; IPR027417; P-loop_NTPase.
DR   SUPFAM; SSF52540; SSF52540; 1.
PE   1: Evidence at protein level;
KW   ATP-binding; Capsid protein; Direct protein sequencing; Nucleotide-binding;
KW   Reference proteome; Viral genome packaging; Viral release from host cell;
KW   Virion.
FT   INIT_MET        1
FT                   /note="Removed; by host"
FT                   /evidence="ECO:0000269|PubMed:1853567"
FT   CHAIN           2..227
FT                   /note="DNA packaging ATPase P9"
FT                   /id="PRO_0000165351"
FT   BINDING         16..23
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   227 AA;  25787 MW;  1125CCF088FC0DEB CRC64;
     MTIRMPNDRQ RILVLGKTGT GKTCAAVWHL SQKDFKRKAW IVLNHKGDDL IDSIEGANHV
     DLNFRPKKPG LYIYHPIPDV DDAEVTQLLW DIHAMGDIGV YVDEGYMIPN RDPAFQALLT
     QGRSKKIPMI ILSQRPVWLT RFAISESDFF QIFQLGDQRD RQTVQGFVPV DLEKLMQAPV
     NTVPALKKFH SIYYDVGANN CVIMTPVPTA DAVLARFDLG KKRKQTL