ID   CSSA1_ECOLX             Reviewed;         154 AA.
AC   P53508;
DT   01-OCT-1996, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-1996, sequence version 1.
DT   03-AUG-2022, entry version 58.
DE   RecName: Full=CS6 fimbrial subunit A;
DE   AltName: Full=CS6 pilin;
DE   Flags: Precursor;
GN   Name=cssA;
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: Fimbriae (also called pili), polar filaments radiating from
CC       the surface of the bacterium to a length of 0.5-1.5 micrometers and
CC       numbering 100-300 per cell, enable bacteria to colonize the epithelium
CC       of specific host organs.
CC   -!- SUBCELLULAR LOCATION: Fimbrium.
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DR   EMBL; U04844; AAC45093.1; -; Unassigned_DNA.
DR   PIR; I60266; I60266.
DR   RefSeq; WP_000750952.1; NZ_UGCI01000001.1.
DR   RefSeq; YP_008531445.1; NC_022333.1.
DR   PDB; 4B9G; X-ray; 1.04 A; A/B=19-34.
DR   PDB; 4B9I; X-ray; 1.50 A; A=28-154.
DR   PDB; 4B9J; X-ray; 2.54 A; A=28-154.
DR   PDBsum; 4B9G; -.
DR   PDBsum; 4B9I; -.
DR   PDBsum; 4B9J; -.
DR   AlphaFoldDB; P53508; -.
DR   SMR; P53508; -.
DR   GO; GO:0009289; C:pilus; IEA:UniProtKB-SubCell.
PE   1: Evidence at protein level;
KW   3D-structure; Fimbrium; Signal.
FT   SIGNAL          1..18
FT                   /evidence="ECO:0000255"
FT   CHAIN           19..154
FT                   /note="CS6 fimbrial subunit A"
FT                   /id="PRO_0000009182"
FT   STRAND          43..46
FT                   /evidence="ECO:0007829|PDB:4B9I"
FT   STRAND          58..65
FT                   /evidence="ECO:0007829|PDB:4B9I"
FT   STRAND          72..78
FT                   /evidence="ECO:0007829|PDB:4B9I"
FT   TURN            81..84
FT                   /evidence="ECO:0007829|PDB:4B9I"
FT   STRAND          85..90
FT                   /evidence="ECO:0007829|PDB:4B9I"
FT   STRAND          93..103
FT                   /evidence="ECO:0007829|PDB:4B9I"
FT   STRAND          123..130
FT                   /evidence="ECO:0007829|PDB:4B9I"
FT   STRAND          140..152
FT                   /evidence="ECO:0007829|PDB:4B9I"
SQ   SEQUENCE   154 AA;  16953 MW;  B4801BE68B68D206 CRC64;
     MKKTIGLILI LASFGSHART EIATKNFPVS TTISKSFFAP EPQIQPSFGK NVGKEGGLLF
     SVSLTVPENV SQVTVYPVYD EDYGLGRLVN TADDSQSIIY QIVDDKGRKM LKDHGAEVTP
     NQQITFRALN YTSGDKEIPP GIYNDQVMVG YYVN