ID   X19F_ECOLI              Reviewed;         169 AA.
AC   P47737;
DT   01-FEB-1996, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1996, sequence version 1.
DT   25-MAY-2022, entry version 89.
DE   RecName: Full=X polypeptide;
DE   AltName: Full=ORF 19;
DE   AltName: Full=ORF169;
DE   AltName: Full=P19 protein;
GN   Name=yubQ; Synonyms=19, X, ygfA; OrderedLocusNames=ECOK12F070;
OS   Escherichia coli (strain K12).
OG   Plasmid F.
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=83333;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=2693941; DOI=10.1007/bf00261174;
RA   Loh S., Cram D., Skurray R.A.;
RT   "Nucleotide sequence of the leading region adjacent to the origin of
RT   transfer on plasmid F and its conservation among conjugative plasmids.";
RL   Mol. Gen. Genet. 219:177-186(1989).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=K12 / CR63;
RA   Shimizu H., Saitoh Y., Suda Y., Uehara K., Sampei G., Mizobuchi K.;
RT   "Complete nucleotide sequence of the F plasmid: its implications for
RT   organization and diversification of plasmid genomes.";
RL   Submitted (APR-2000) to the EMBL/GenBank/DDBJ databases.
RN   [3]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 1-15.
RX   PubMed=6329741; DOI=10.1002/j.1460-2075.1984.tb01947.x;
RA   Thompson R., Taylor L., Kelly K., Everett R., Willetts N.;
RT   "The F plasmid origin of transfer: DNA sequence of wild-type and mutant
RT   origins and location of origin-specific nicks.";
RL   EMBO J. 3:1175-1180(1984).
CC   -!- SIMILARITY: Belongs to the IagB/IpgF/P19 family. {ECO:0000305}.
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DR   EMBL; X17539; CAA35576.1; -; Genomic_DNA.
DR   EMBL; AF106329; AAA99219.1; -; Genomic_DNA.
DR   EMBL; AP001918; BAA97940.1; -; Genomic_DNA.
DR   EMBL; X00545; CAA25215.1; -; Genomic_DNA.
DR   PIR; S07015; S07015.
DR   RefSeq; NP_061449.1; NC_002483.1.
DR   RefSeq; WP_000759160.1; NC_002483.1.
DR   RefSeq; YP_001294732.1; NC_009602.1.
DR   AlphaFoldDB; P47737; -.
DR   SMR; P47737; -.
DR   PRIDE; P47737; -.
DR   PhylomeDB; P47737; -.
DR   PRO; PR:P47737; -.
DR   InterPro; IPR023346; Lysozyme-like_dom_sf.
DR   InterPro; IPR008258; Transglycosylase_SLT_dom_1.
DR   Pfam; PF01464; SLT; 1.
DR   SUPFAM; SSF53955; SSF53955; 1.
PE   3: Inferred from homology;
KW   Plasmid.
FT   CHAIN           1..169
FT                   /note="X polypeptide"
FT                   /id="PRO_0000068495"
SQ   SEQUENCE   169 AA;  19285 MW;  EED73BDA80818BD9 CRC64;
     MKKWMLAICL MFINEICHAT DCFDLAGRDY KIDPDLLRAI SWKESRYRVN AIGINPVTGY
     GSGLMQVDSQ HFNELARYGI KPEHLTTDPC MNIYTGAYYL AIAFKKWGVS WEAVGAYNAG
     FRKTERQNQR RLAYASDVYR IYTGIKSSKG IRIPATKKSL PEINSVQNN