ID   GP7_BPSPP               Reviewed;         308 AA.
AC   Q38442; Q38577;
DT   01-NOV-1997, integrated into UniProtKB/Swiss-Prot.
DT   15-MAR-2004, sequence version 2.
DT   25-MAY-2022, entry version 68.
DE   RecName: Full=Minor head protein GP7;
DE   AltName: Full=Accessory head protein gp7 {ECO:0000303|PubMed:10656821};
GN   Name=7;
OS   Bacillus phage SPP1 (Bacteriophage SPP1).
OC   Viruses; Duplodnaviria; Heunggongvirae; Uroviricota; Caudoviricetes;
OC   Caudovirales; Siphoviridae.
OX   NCBI_TaxID=10724;
OH   NCBI_TaxID=1423; Bacillus subtilis.
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA], AND SUBCELLULAR LOCATION.
RX   PubMed=9180375; DOI=10.1006/jmbi.1997.0997;
RA   Becker B., de la Fuente N., Gassel M., Guenther D., Tavares P., Lurz R.,
RA   Trautner T.A., Alonso J.C.;
RT   "Head morphogenesis genes of the Bacillus subtilis bacteriophage SPP1.";
RL   J. Mol. Biol. 268:822-839(1997).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=9434185; DOI=10.1016/s0378-1119(97)00547-7;
RA   Alonso J.C., Luder G., Stiege A.C., Chai S., Weise F., Trautner T.A.;
RT   "The complete nucleotide sequence and functional organization of Bacillus
RT   subtilis bacteriophage SPP1.";
RL   Gene 204:201-212(1997).
RN   [3]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 1-43.
RX   PubMed=1583695; DOI=10.1016/0022-2836(92)91027-m;
RA   Tavares P., Santos M.A., Lurz R., Morelli G., de Lencastre H.,
RA   Trautner T.A.;
RT   "Identification of a gene in Bacillus subtilis bacteriophage SPP1
RT   determining the amount of packaged DNA.";
RL   J. Mol. Biol. 225:81-92(1992).
RN   [4]
RP   INTERACTION WITH THE PORTAL PROTEIN.
RX   PubMed=10656821; DOI=10.1006/jmbi.1999.3450;
RA   Droege A., Santos M.A., Stiege A.C., Alonso J.C., Lurz R., Trautner T.A.,
RA   Tavares P.;
RT   "Shape and DNA packaging activity of bacteriophage SPP1 procapsid: protein
RT   components and interactions during assembly.";
RL   J. Mol. Biol. 296:117-132(2000).
RN   [5]
RP   DNA-BINDING, INTERACTION WITH THE PORTAL PROTEIN, AND SUBUNIT.
RX   PubMed=12940981; DOI=10.1046/j.1365-2958.2003.03631.x;
RA   Stiege A.C., Isidro A., Droege A., Tavares P.;
RT   "Specific targeting of a DNA-binding protein to the SPP1 procapsid by
RT   interaction with the portal oligomer.";
RL   Mol. Microbiol. 49:1201-1212(2003).
RN   [6]
RP   FUNCTION.
RX   PubMed=16899078; DOI=10.1111/j.1365-2958.2006.05327.x;
RA   Vinga I., Droege A., Stiege A.C., Lurz R., Santos M.A., Daugelavicius R.,
RA   Tavares P.;
RT   "The minor capsid protein gp7 of bacteriophage SPP1 is required for
RT   efficient infection of Bacillus subtilis.";
RL   Mol. Microbiol. 61:1609-1621(2006).
CC   -!- FUNCTION: Binds the viral DNA inside the capsid and the portal protein.
CC       May control the DNA exit from the virion.
CC       {ECO:0000269|PubMed:16899078}.
CC   -!- SUBUNIT: Monomer (PubMed:12940981). Interacts with the portal protein
CC       gp6; this interaction targets gp7 to the procapsid portal vertex.
CC       {ECO:0000269|PubMed:10656821, ECO:0000269|PubMed:12940981}.
CC   -!- SUBCELLULAR LOCATION: Virion {ECO:0000269|PubMed:10656821,
CC       ECO:0000269|PubMed:9180375}. Note=Probably located next to the portal
CC       vertex. Present in one to two copies per virion.
CC       {ECO:0000305|PubMed:10656821}.
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DR   EMBL; X89721; CAA61865.1; -; Genomic_DNA.
DR   EMBL; X97918; CAA66581.1; -; Genomic_DNA.
DR   EMBL; X56064; CAA39542.1; -; Genomic_DNA.
DR   PIR; S58137; S58137.
DR   RefSeq; NP_690662.1; NC_004166.2.
DR   SMR; Q38442; -.
DR   TCDB; 1.W.2.1.11; the phage portal protein 2 (ppp2) family.
DR   GeneID; 955280; -.
DR   KEGG; vg:955280; -.
DR   Proteomes; UP000002559; Genome.
DR   GO; GO:0019028; C:viral capsid; IDA:UniProtKB.
DR   GO; GO:0046729; C:viral procapsid; IDA:CACAO.
DR   GO; GO:0003677; F:DNA binding; IEA:UniProtKB-KW.
DR   InterPro; IPR006528; Phage_head_morphogenesis_dom.
DR   Pfam; PF04233; Phage_Mu_F; 1.
PE   1: Evidence at protein level;
KW   Capsid protein; DNA-binding; Late protein; Reference proteome; Virion.
FT   CHAIN           1..308
FT                   /note="Minor head protein GP7"
FT                   /id="PRO_0000077793"
SQ   SEQUENCE   308 AA;  35140 MW;  DA741CD374991445 CRC64;
     MPEPQNQEEL DKYLDNIITQ AEKRLDKVFA SRLKEIKAMI NKLFEKYSKN GELTYADVVK
     YNRLEKEMDV IKQNISADYK TVLKMLNELL ETQYVDNYLR SAYIYEMYTG RNLGFSVPSA
     DVVQRAVENP IPLLTLPKVL ERQRVELINN IAMAIAQGLM AGEGYSQVAQ RVHKRMQLSL
     AKARLTARTE GHRVQVAGRM ASAEQAAKKV NMQKMWSAAL DTRTRAGHRK LDGKIINMDE
     NFKSIYGGVG KAPGHMHMAK DDCNCRCALI YVIDGEIPSV RRARLSDGST RVIKYIPYTE
     WEKQKKAS