ID   HIFB1_HAEIF             Reviewed;         241 AA.
AC   P35757;
DT   01-JUN-1994, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1995, sequence version 2.
DT   25-MAY-2022, entry version 84.
DE   RecName: Full=Chaperone protein HifB;
DE   Flags: Precursor;
GN   Name=hifB;
OS   Haemophilus influenzae.
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pasteurellales;
OC   Pasteurellaceae; Haemophilus.
OX   NCBI_TaxID=727;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=Isolate R1369 / Serotype B;
RA   Smith A.L., Forney L.J., Chanyangam M.;
RL   Submitted (JUN-1992) to the EMBL/GenBank/DDBJ databases.
RN   [2]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=AM30 (770235) / Serotype B;
RX   PubMed=7997179; DOI=10.1111/j.1365-2958.1994.tb00461.x;
RA   van Ham M.S., van Alphen L., Mooi F.R., van Putten J.P.M.;
RT   "The fimbrial gene cluster of Haemophilus influenzae type b.";
RL   Mol. Microbiol. 13:673-684(1994).
CC   -!- FUNCTION: Mediates assembly of pili by forming soluble multimeric
CC       complexes with pili subunits as an intermediate step in the assembly
CC       process. This protein is involved in type B pili (HifA) assembly.
CC   -!- SUBCELLULAR LOCATION: Periplasm.
CC   -!- SIMILARITY: Belongs to the periplasmic pilus chaperone family.
CC       {ECO:0000305}.
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DR   EMBL; X66606; CAA47175.1; -; Genomic_DNA.
DR   EMBL; Z33502; CAA83901.1; -; Genomic_DNA.
DR   PIR; S24978; S24978.
DR   PIR; S54428; S54428.
DR   AlphaFoldDB; P35757; -.
DR   SMR; P35757; -.
DR   GO; GO:0030288; C:outer membrane-bounded periplasmic space; IEA:InterPro.
DR   GO; GO:0071555; P:cell wall organization; IEA:InterPro.
DR   GO; GO:0061077; P:chaperone-mediated protein folding; IEA:InterPro.
DR   Gene3D; 2.60.40.10; -; 2.
DR   InterPro; IPR013783; Ig-like_fold.
DR   InterPro; IPR008962; PapD-like_sf.
DR   InterPro; IPR036316; Pili_assmbl_chap_C_dom_sf.
DR   InterPro; IPR001829; Pili_assmbl_chaperone_bac.
DR   InterPro; IPR016148; Pili_assmbl_chaperone_C.
DR   InterPro; IPR018046; Pili_assmbl_chaperone_CS.
DR   InterPro; IPR016147; Pili_assmbl_chaperone_N.
DR   Pfam; PF02753; PapD_C; 1.
DR   Pfam; PF00345; PapD_N; 1.
DR   PRINTS; PR00969; CHAPERONPILI.
DR   SUPFAM; SSF49354; SSF49354; 1.
DR   SUPFAM; SSF49584; SSF49584; 1.
DR   PROSITE; PS00635; PILI_CHAPERONE; 1.
PE   3: Inferred from homology;
KW   Chaperone; Fimbrium biogenesis; Immunoglobulin domain; Periplasm; Signal.
FT   SIGNAL          1..27
FT                   /evidence="ECO:0000255"
FT   CHAIN           28..241
FT                   /note="Chaperone protein HifB"
FT                   /id="PRO_0000009279"
FT   VARIANT         17..21
FT                   /note="Missing (in strain: AM30)"
FT   VARIANT         104
FT                   /note="G -> S (in strain: AM30)"
SQ   SEQUENCE   241 AA;  26743 MW;  AB7513BF9FC96D53 CRC64;
     MGKTMFKKTL LFFTALFFTA LCAFSANANV IITGTRVIYP AGQKNVIVKL ENNDDSAALV
     QAWIDNGNPN ADPKYTKTPF VITPPVARVE AKSGQSLRIT FTGGEPLPDD RESLFYFNLL
     DIPPKPDAEF LAKHGSFMQI AIRSRLKLFY RPAKLSLDPF DAMKKVVFKA TPKGVLVDNQ
     TPYYMNYIGL LHQNKPAKNV KMVAPFSQAV FEAKGVRSGD KLKWVLVNDY GADQEGDAIA
     Q