ID   BLC_CITFR               Reviewed;         177 AA.
AC   Q46036;
DT   01-NOV-1997, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1997, sequence version 1.
DT   25-MAY-2022, entry version 95.
DE   RecName: Full=Outer membrane lipoprotein Blc;
DE   Flags: Precursor;
OS   Citrobacter freundii.
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Citrobacter; Citrobacter freundii complex.
OX   NCBI_TaxID=546;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=OS60;
RX   PubMed=7559452; DOI=10.1074/jbc.270.39.23097;
RA   Bishop R.E., Penfold S.S., Frost L.S., Hoeltje J.-V., Weiner J.H.;
RT   "Stationary phase expression of a novel Escherichia coli outer membrane
RT   lipoprotein and its relationship with mammalian apolipoprotein D.
RT   Implications for the origin of lipocalins.";
RL   J. Biol. Chem. 270:23097-23103(1995).
CC   -!- FUNCTION: Involved in the storage or transport of lipids necessary for
CC       membrane maintenance under stressful conditions. Displays a binding
CC       preference for lysophospholipids (By similarity). {ECO:0000250}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Cell outer membrane; Lipid-anchor.
CC   -!- SIMILARITY: Belongs to the calycin superfamily. Lipocalin family.
CC       {ECO:0000305}.
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DR   EMBL; U21727; AAC46456.1; -; Genomic_DNA.
DR   PIR; I40710; I40710.
DR   RefSeq; WP_003025522.1; NZ_VKUV01000036.1.
DR   AlphaFoldDB; Q46036; -.
DR   SMR; Q46036; -.
DR   STRING; 1333848.CFNIH1_08410; -.
DR   GeneID; 60898055; -.
DR   OrthoDB; 1770932at2; -.
DR   GO; GO:0009279; C:cell outer membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0008289; F:lipid binding; IEA:UniProtKB-KW.
DR   Gene3D; 2.40.128.20; -; 1.
DR   InterPro; IPR012674; Calycin.
DR   InterPro; IPR022271; Lipocalin_ApoD.
DR   InterPro; IPR002446; Lipocalin_bac.
DR   InterPro; IPR022272; Lipocalin_CS.
DR   InterPro; IPR000566; Lipocln_cytosolic_FA-bd_dom.
DR   Pfam; PF08212; Lipocalin_2; 1.
DR   PIRSF; PIRSF036893; Lipocalin_ApoD; 1.
DR   PRINTS; PR01171; BCTLIPOCALIN.
DR   SUPFAM; SSF50814; SSF50814; 1.
DR   PROSITE; PS00213; LIPOCALIN; 1.
DR   PROSITE; PS51257; PROKAR_LIPOPROTEIN; 1.
PE   3: Inferred from homology;
KW   Cell outer membrane; Lipid-binding; Lipoprotein; Membrane; Palmitate;
KW   Signal.
FT   SIGNAL          1..18
FT                   /evidence="ECO:0000305"
FT   CHAIN           19..177
FT                   /note="Outer membrane lipoprotein Blc"
FT                   /id="PRO_0000017990"
FT   LIPID           19
FT                   /note="N-palmitoyl cysteine"
FT                   /evidence="ECO:0000305"
FT   LIPID           19
FT                   /note="S-diacylglycerol cysteine"
FT                   /evidence="ECO:0000305"
SQ   SEQUENCE   177 AA;  19921 MW;  FF85827662AD5DA1 CRC64;
     MRILPVVAAV TAAFLVVACS SPTPPKGVTV VNNFDAKRYL GTWYEIARFD HRFERGLDKV
     TATYSLRDDG GINVINKGYN PDREMWQKTE GKAYFTGDPS TAALKVSFFG PFYGGYNVIA
     LDREYRHALV CGPDRDYLWI LSRTPTISDE MKQQMLAIAT REGFEVNKLI WVKQPGA