ID   X192_ECOLX              Reviewed;         169 AA.
AC   P17738;
DT   01-AUG-1990, integrated into UniProtKB/Swiss-Prot.
DT   01-AUG-1990, sequence version 1.
DT   25-MAY-2022, entry version 76.
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 R1.
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=562;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=2315017; DOI=10.1093/nar/18.4.1046;
RA   Graus H., Hoedel A., Wallner P., Hoegenauer G.;
RT   "The sequence of the leading region of the resistance plasmid R1.";
RL   Nucleic Acids Res. 18:1046-1046(1990).
CC   -!- SIMILARITY: Belongs to the IagB/IpgF/P19 family. {ECO:0000305}.
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DR   EMBL; X15279; CAA33352.1; -; Genomic_DNA.
DR   PIR; JN0036; JN0036.
DR   RefSeq; NP_862915.1; NC_004998.1.
DR   RefSeq; WP_001418721.1; NC_024956.1.
DR   RefSeq; YP_009060160.1; NC_024956.1.
DR   AlphaFoldDB; P17738; -.
DR   SMR; P17738; -.
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_0000068497"
SQ   SEQUENCE   169 AA;  19290 MW;  8F6F30E4879FAB86 CRC64;
     MKKWMLAICL MFINEICQAT DCFDLAGRDY KIDPDLLRAI SWKESRYRVN AIGINPVTGY
     GSGLMQVDSQ HFNELARYGI KPEHLTTDPC MNIYTGAYYL AIAFKKWGVT WEAVGAYNAG
     FRKSERQNQR RLAYASEVYR IYTGIKSSKG IRLPATKKSL PEINSVQNN