ID   SSB_BPPZA               Reviewed;         124 AA.
AC   P06953;
DT   01-JAN-1988, integrated into UniProtKB/Swiss-Prot.
DT   01-JAN-1988, sequence version 1.
DT   23-FEB-2022, entry version 61.
DE   RecName: Full=Single-stranded DNA-binding protein {ECO:0000250|UniProtKB:Q38504};
DE            Short=SSB {ECO:0000250|UniProtKB:Q38504};
DE   AltName: Full=Gene product 5 {ECO:0000250|UniProtKB:Q38504};
DE            Short=gp5 {ECO:0000250|UniProtKB:Q38504};
DE   AltName: Full=Protein p5 {ECO:0000250|UniProtKB:Q38504};
GN   Name=5; Synonyms=5A;
OS   Bacillus phage PZA (Bacteriophage PZA).
OC   Viruses; Duplodnaviria; Heunggongvirae; Uroviricota; Caudoviricetes;
OC   Caudovirales; Salasmaviridae; Picovirinae; Salasvirus; Bacillus virus PZA.
OX   NCBI_TaxID=10757;
OH   NCBI_TaxID=1423; Bacillus subtilis.
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=3934048; DOI=10.1016/0378-1119(85)90202-1;
RA   Paces V., Vlcek C., Urbanek P., Hostomsky Z.;
RT   "Nucleotide sequence of the major early region of Bacillus subtilis phage
RT   PZA, a close relative of phi 29.";
RL   Gene 38:45-56(1985).
CC   -!- FUNCTION: Single-stranded DNA binding protein required for the
CC       elongation during viral DNA replication by strand displacement.
CC       Displaced viral DNA strands are transiently coated with the ssDNA-
CC       binding protein and therefore protected againt nucleases. The latter is
CC       then probably removed by the replisome that performs lagging strand
CC       synthesis or during the events that lead up to the recombination
CC       process. Has helix-destabilizing activity since it removes secondary
CC       structure from the ssDNA in replicative intermediates.
CC       {ECO:0000250|UniProtKB:Q38504}.
CC   -!- SUBUNIT: Monomer. {ECO:0000250|UniProtKB:Q38504}.
CC   -!- SIMILARITY: Belongs to the phi29likevirus single-strand-binding protein
CC       family. {ECO:0000305}.
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DR   EMBL; M11813; AAA88475.1; -; Genomic_DNA.
DR   PIR; G24528; ERBP5A.
DR   BMRB; P06953; -.
DR   Proteomes; UP000000855; Genome.
DR   GO; GO:0003677; F:DNA binding; IEA:UniProtKB-KW.
DR   GO; GO:0006260; P:DNA replication; IEA:UniProtKB-KW.
DR   GO; GO:0039693; P:viral DNA genome replication; IEA:UniProtKB-KW.
DR   InterPro; IPR035408; Phi29_Phage_SSB.
DR   Pfam; PF17427; Phi29_Phage_SSB; 1.
PE   3: Inferred from homology;
KW   DNA replication; DNA-binding; Early protein; Viral DNA replication.
FT   CHAIN           1..124
FT                   /note="Single-stranded DNA-binding protein"
FT                   /id="PRO_0000106564"
SQ   SEQUENCE   124 AA;  13330 MW;  4CE72B6156F910B1 CRC64;
     MENTNIVKAT FDTETLEGQI KIFNAQTGGG QSFKNLPDGT IIEATAIAQY KQVSDTYGDA
     KEETVTTIFA ADGSLYSAIS KTVAEAASDL IDLVTRHKLE TFKVKVVQGT SSKGNVFFSL
     QLSL