ID   CSSD1_ECOLX             Reviewed;         819 AA.
AC   P53512;
DT   01-OCT-1996, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-1996, sequence version 1.
DT   25-MAY-2022, entry version 83.
DE   RecName: Full=Outer membrane usher protein CssD;
DE   AltName: Full=CS6 fimbria usher protein;
DE   Flags: Precursor;
GN   Name=cssD;
OS   Escherichia coli.
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=562;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=O167:H5 / E10703 / EIEC;
RA   Wolf M.K., de Haan L., Cassels F.C., Willshaw G.A., van Gestel E.,
RA   Gaastra W., Warren R., Boedeker E.C.;
RL   Submitted (JAN-1994) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Involved in the export and assembly of C6 fimbrial subunits
CC       across the outer membrane.
CC   -!- SUBCELLULAR LOCATION: Cell outer membrane {ECO:0000250}; Multi-pass
CC       membrane protein {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the fimbrial export usher family. {ECO:0000305}.
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DR   EMBL; U04844; AAC45096.1; -; Unassigned_DNA.
DR   PIR; I83350; I83350.
DR   RefSeq; WP_000978936.1; NZ_POAV01000059.1.
DR   RefSeq; YP_008531442.1; NC_022333.1.
DR   AlphaFoldDB; P53512; -.
DR   SMR; P53512; -.
DR   PRIDE; P53512; -.
DR   GO; GO:0009279; C:cell outer membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0015473; F:fimbrial usher porin activity; IEA:InterPro.
DR   GO; GO:0009297; P:pilus assembly; IEA:InterPro.
DR   Gene3D; 2.60.40.2070; -; 1.
DR   Gene3D; 2.60.40.2610; -; 1.
DR   Gene3D; 3.10.20.410; -; 1.
DR   InterPro; IPR000015; Fimb_usher.
DR   InterPro; IPR042186; FimD_plug_dom.
DR   InterPro; IPR025949; PapC-like_C.
DR   InterPro; IPR043142; PapC-like_C_sf.
DR   InterPro; IPR025885; PapC_N.
DR   InterPro; IPR037224; PapC_N_sf.
DR   PANTHER; PTHR30451; PTHR30451; 1.
DR   Pfam; PF13953; PapC_C; 1.
DR   Pfam; PF13954; PapC_N; 1.
DR   Pfam; PF00577; Usher; 1.
DR   SUPFAM; SSF141729; SSF141729; 1.
PE   3: Inferred from homology;
KW   Cell outer membrane; Fimbrium biogenesis; Membrane; Signal; Transmembrane;
KW   Transmembrane beta strand; Transport.
FT   SIGNAL          1..?
FT                   /evidence="ECO:0000255"
FT   CHAIN           ?..819
FT                   /note="Outer membrane usher protein CssD"
FT                   /id="PRO_0000009306"
SQ   SEQUENCE   819 AA;  92379 MW;  6E8718FE28C6AA89 CRC64;
     MMLAQKQNFM NQFYKKYHYS IQKYQITDLL FFLFLYPFST SYGNEQFSFD SRFLPSGYNY
     SLNSNLPPEG EYLVDIYINK IKKESAIIPF YIKGNKLVPC LSKEKLSSLG ININNNDNAE
     CAETSKAGIS NISFEFSSLR LFIAVPKNLL SEIDKISSKD IDNGIHALFF NYQVNTRLAN
     NKNRYDYISV SPNINYFSWR LRNRFEFNQN NDKKTWERNY TYLEKSFYDK KLNLIVGESY
     TSSNVYNNYS FTGISVSTDT DMYTPSEIDY TPEIHGVADS DSQIIVRQGN TIIINESVPA
     GPFSFPITNL MYTGGQLNVE ITDIYGNKKQ YTVSNSSLPV MRKAGLMVYN FISGKLTKKN
     SEDGDFFAQG DINYGTHYNS TLFGGYQFSK NYFNLSTGIG TDLGFSGAWL LNVSRSNFKD
     KNGYNINLQQ NTQLRPFNAG VNFDYIYRKK GYVELSGIGW HGNLYNQLKN SFSLSLSKSL
     DKYGNFSLDY NKIKYWDNAY DSNSMSIRYF FKFMRAMITT NYSLNKYQSY EKKDKRFSIN
     ISLPLTKDYG HISSNYSFSN ANTGTATSSV GVNGSFFNDA RLNWNIQQNR TTRNNGYTDN
     TSYIATSYAS PYGVFTGSYS GSNKYSSQFY SALGGIVLHS DGVAFTQKAG DTSALVRIDN
     ISDIKIGNTP GVYTGYNGFA LIPHLQPFKK NTILINDKGI PDDIALANIK KQVIPSRGAI
     VKVKFDAKKG NNILFKLTTK DGKTPPLGAI AHEKNGKQIN TGIVDDDGML YMSGLSGAGI
     INVTWNGKVC SFPFSEKDIS SKQLSVVNKQ CNRPENSGD