ID   X191_ECOLX              Reviewed;         169 AA.
AC   P14499;
DT   01-JAN-1990, integrated into UniProtKB/Swiss-Prot.
DT   01-JAN-1990, sequence version 1.
DT   25-MAY-2022, entry version 86.
DE   RecName: Full=X polypeptide;
DE   AltName: Full=ORF 19;
DE   AltName: Full=ORF169;
DE   AltName: Full=P19 protein;
GN   Name=X; Synonyms=19;
OS   Escherichia coli.
OG   Plasmid IncFII R100 (NR1).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=562;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=2837741; DOI=10.1093/nar/16.10.4726;
RA   Fee B.E., Dempsey W.B.;
RT   "Nucleotide sequence of gene X of antibiotic resistance plasmid R100.";
RL   Nucleic Acids Res. 16:4726-4726(1988).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 1-16.
RX   PubMed=1645338; DOI=10.1016/s0021-9258(18)99193-3;
RA   Inamoto S., Yoshioka Y., Ohtsubo E.;
RT   "Site- and strand-specific nicking in vitro at oriT by the traY-traI
RT   endonuclease of plasmid R100.";
RL   J. Biol. Chem. 266:10086-10092(1991).
CC   -!- SIMILARITY: Belongs to the IagB/IpgF/P19 family. {ECO:0000305}.
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DR   EMBL; X07264; CAA30250.1; -; Genomic_DNA.
DR   PIR; S00924; S00924.
DR   RefSeq; NP_957596.1; NC_005327.1.
DR   RefSeq; WP_000759173.1; NZ_PNSG01000146.1.
DR   RefSeq; YP_001096464.1; NC_009133.1.
DR   RefSeq; YP_002456185.1; NC_011812.1.
DR   RefSeq; YP_006954265.1; NC_019095.1.
DR   AlphaFoldDB; P14499; -.
DR   SMR; P14499; -.
DR   CAZy; GH23; Glycoside Hydrolase Family 23.
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_0000068496"
SQ   SEQUENCE   169 AA;  19337 MW;  B3AF94A5C48639F3 CRC64;
     MKKWMLAICL MFINGICEAA DCFDLAGRDY KIDPDLLRAI SWKESRYRVN AIGINPVTGY
     GSGLMQVDSQ HFNELARYGI KPEHLTTDPC MNIYTGAYYL AIAFKKWGVS WEAVGAYNAG
     FRKTERQNQR RLAYASEVYR IYTWIKSSKG IRVPTTKKSL SQINSVQKN