ID   VNUN_BPHK0              Reviewed;         112 AA.
AC   P18683;
DT   01-NOV-1990, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1990, sequence version 1.
DT   23-FEB-2022, entry version 75.
DE   RecName: Full=Transcription termination factor nun;
GN   Name=nun;
OS   Escherichia phage HK022 (Bacteriophage HK022).
OC   Viruses; Duplodnaviria; Heunggongvirae; Uroviricota; Caudoviricetes;
OC   Caudovirales; Siphoviridae; Hendrixvirinae; Shamshuipovirus.
OX   NCBI_TaxID=10742;
OH   NCBI_TaxID=562; Escherichia coli.
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=2760929; DOI=10.1016/0022-2836(89)90237-4;
RA   Oberto J., Weisberg R.A., Gottesman M.E.;
RT   "Structure and function of the nun gene and the immunity region of the
RT   lambdoid phage HK022.";
RL   J. Mol. Biol. 207:675-693(1989).
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DR   EMBL; X16093; CAA34221.1; -; Genomic_DNA.
DR   PIR; S06539; VNBPHK.
DR   PDB; 1HJI; NMR; -; B=22-47.
DR   PDB; 6ALG; EM; 3.70 A; N=4-112.
DR   PDBsum; 1HJI; -.
DR   PDBsum; 6ALG; -.
DR   SMR; P18683; -.
DR   EvolutionaryTrace; P18683; -.
DR   GO; GO:0006353; P:DNA-templated transcription, termination; IDA:CACAO.
DR   GO; GO:0032785; P:negative regulation of DNA-templated transcription, elongation; IDA:CACAO.
PE   1: Evidence at protein level;
KW   3D-structure; Transcription; Transcription regulation;
KW   Transcription termination.
FT   CHAIN           1..112
FT                   /note="Transcription termination factor nun"
FT                   /id="PRO_0000077786"
FT   HELIX           27..45
FT                   /evidence="ECO:0007829|PDB:1HJI"
SQ   SEQUENCE   112 AA;  13108 MW;  E12C40135E19AEB1 CRC64;
     MLMVKKTIYV NPDSGQNRKV SDRGLTSRDR RRIARWEKRI AYALKNGVTP GFNAIDDGPE
     YKINEDPMDK VDKALATPFP RDVEKIEDEK YEDVMHRVVN HAHQRNPNKK WS