ID   TERS_ECOL6              Reviewed;         182 AA.
AC   P68653; P36694;
DT   07-DEC-2004, integrated into UniProtKB/Swiss-Prot.
DT   07-DEC-2004, sequence version 1.
DT   03-AUG-2022, entry version 78.
DE   RecName: Full=P21 prophage-derived terminase small subunit;
DE   AltName: Full=Gp1;
GN   Name=nohA; OrderedLocusNames=c1568;
OS   Escherichia coli O6:H1 (strain CFT073 / ATCC 700928 / UPEC).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=199310;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CFT073 / ATCC 700928 / UPEC;
RX   PubMed=12471157; DOI=10.1073/pnas.252529799;
RA   Welch R.A., Burland V., Plunkett G. III, Redford P., Roesch P., Rasko D.,
RA   Buckles E.L., Liou S.-R., Boutin A., Hackett J., Stroud D., Mayhew G.F.,
RA   Rose D.J., Zhou S., Schwartz D.C., Perna N.T., Mobley H.L.T.,
RA   Donnenberg M.S., Blattner F.R.;
RT   "Extensive mosaic structure revealed by the complete genome sequence of
RT   uropathogenic Escherichia coli.";
RL   Proc. Natl. Acad. Sci. U.S.A. 99:17020-17024(2002).
CC   -!- FUNCTION: Involved in the initiation of the phage DNA packaging into
CC       the prohead. Processes replicating concatemeric DNA into pieces of unit
CC       length with cohesive ends (By similarity). {ECO:0000250}.
CC   -!- SUBUNIT: Heterooligomer of gp1 and gp2. {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the terminase small subunit family.
CC       {ECO:0000305}.
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DR   EMBL; AE014075; AAN80037.1; -; Genomic_DNA.
DR   RefSeq; WP_000867568.1; NC_004431.1.
DR   AlphaFoldDB; P68653; -.
DR   SMR; P68653; -.
DR   STRING; 199310.c1568; -.
DR   EnsemblBacteria; AAN80037; AAN80037; c1568.
DR   KEGG; ecc:c1568; -.
DR   eggNOG; COG4220; Bacteria.
DR   HOGENOM; CLU_101608_0_1_6; -.
DR   BioCyc; ECOL199310:C1568-MON; -.
DR   Proteomes; UP000001410; Chromosome.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR   Gene3D; 1.10.10.10; -; 1.
DR   InterPro; IPR009061; DNA-bd_dom_put_sf.
DR   InterPro; IPR010906; Phage_lambda_Nu1_terminase-ssu.
DR   InterPro; IPR036388; WH-like_DNA-bd_sf.
DR   Pfam; PF07471; Phage_Nu1; 1.
DR   SUPFAM; SSF46955; SSF46955; 1.
PE   3: Inferred from homology;
KW   ATP-binding; Nucleotide-binding; Viral genome packaging;
KW   Viral release from host cell.
FT   CHAIN           1..182
FT                   /note="P21 prophage-derived terminase small subunit"
FT                   /id="PRO_0000077677"
FT   BINDING         31..36
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   182 AA;  20507 MW;  E3EBD9DCA6820284 CRC64;
     MKVNKKRLAE IFNVDPRTIE RWQSQGLPCA SKGSKGIESV FDTAMAIQWY AQRETDIENE
     KLRKELDDLR AAAESDLQPG TIDYERYRLT KAQADAQELK NAREDGVVLE TELFTFILQR
     VAQEISGILV RVPLTLQRKY PDISPSHLDV VKTEIAKASN VAAKAGENVG GWIDDFRRAE
     GS