ID   TERS_BPLSK              Reviewed;         174 AA.
AC   O21869;
DT   02-NOV-2016, integrated into UniProtKB/Swiss-Prot.
DT   01-JAN-1998, sequence version 1.
DT   12-AUG-2020, entry version 49.
DE   RecName: Full=Terminase small subunit {ECO:0000250|UniProtKB:D3WAC0};
DE   AltName: Full=Gene product 1 {ECO:0000305};
DE            Short=gp1 {ECO:0000305};
OS   Lactococcus phage SK1 (Lactococcus lactis bacteriophage SK1).
OC   Viruses; Duplodnaviria; Heunggongvirae; Uroviricota; Caudoviricetes;
OC   Caudovirales; Siphoviridae; Skunavirus.
OX   NCBI_TaxID=31532;
OH   NCBI_TaxID=1358; Lactococcus lactis.
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=9383189; DOI=10.1046/j.1365-2958.1997.5491926.x;
RA   Chandry P.S., Moore S.C., Boyce J.D., Davidson B.E., Hillier A.J.;
RT   "Analysis of the DNA sequence, gene expression, origin of replication and
RT   modular structure of the Lactococcus lactis lytic bacteriophage sk1.";
RL   Mol. Microbiol. 26:49-64(1997).
CC   -!- FUNCTION: Probable terminase small subunit. The terminase lies at a
CC       unique vertex of the procapsid and is composed of two subunits, a small
CC       terminase subunit and a large terminase subunit. Both terminase
CC       subunits heterooligomerize and are docked on the portal protein to form
CC       the packaging machine. Once the capsid is packaged with the DNA, the
CC       terminase complex is substituted by the connector proteins gp15.
CC       {ECO:0000250|UniProtKB:D3WAC0}.
CC   -!- SIMILARITY: Belongs to the skunalikevirus terminase small subunit
CC       family. {ECO:0000305}.
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DR   EMBL; AF011378; AAB70040.1; -; Genomic_DNA.
DR   RefSeq; NP_044947.1; NC_001835.1.
DR   GeneID; 1261292; -.
DR   KEGG; vg:1261292; -.
DR   Proteomes; UP000000839; Genome.
DR   InterPro; IPR010789; Terminase_ssu_Skunalikevirus.
DR   Pfam; PF07141; Phage_term_sma; 1.
PE   3: Inferred from homology;
KW   Reference proteome; Viral genome packaging; Viral release from host cell.
FT   CHAIN           1..174
FT                   /note="Terminase small subunit"
FT                   /id="PRO_0000438259"
SQ   SEQUENCE   174 AA;  19918 MW;  27F909FDDF6BEA3A CRC64;
     MQTQKGGRPT ILPKMYEEPL FSQIIDKIES GCNDREIYTS LHCSAKTFRK WRDDNIKAYD
     EAKGIARGNL LELAESALAS KLTVRTLKET ETIYDADGNV EKVKVKEKEL DKDSLVAMMV
     AKAGNPELYN PTEWRRLQQE ESSAHDLKAK IEELDDYKLS KYKTPEIEVP EGFE