ID   FUCI_ECOHS              Reviewed;         591 AA.
AC   A8A3T7;
DT   05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   23-OCT-2007, sequence version 1.
DT   03-AUG-2022, entry version 83.
DE   RecName: Full=L-fucose isomerase {ECO:0000255|HAMAP-Rule:MF_01254};
DE            EC=5.3.1.25 {ECO:0000255|HAMAP-Rule:MF_01254};
DE   AltName: Full=6-deoxy-L-galactose isomerase {ECO:0000255|HAMAP-Rule:MF_01254};
DE   AltName: Full=FucIase;
GN   Name=fucI {ECO:0000255|HAMAP-Rule:MF_01254}; OrderedLocusNames=EcHS_A2946;
OS   Escherichia coli O9:H4 (strain HS).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=331112;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=HS;
RX   PubMed=18676672; DOI=10.1128/jb.00619-08;
RA   Rasko D.A., Rosovitz M.J., Myers G.S.A., Mongodin E.F., Fricke W.F.,
RA   Gajer P., Crabtree J., Sebaihia M., Thomson N.R., Chaudhuri R.,
RA   Henderson I.R., Sperandio V., Ravel J.;
RT   "The pangenome structure of Escherichia coli: comparative genomic analysis
RT   of E. coli commensal and pathogenic isolates.";
RL   J. Bacteriol. 190:6881-6893(2008).
CC   -!- FUNCTION: Converts the aldose L-fucose into the corresponding ketose L-
CC       fuculose. {ECO:0000255|HAMAP-Rule:MF_01254}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=L-fucose = L-fuculose; Xref=Rhea:RHEA:17233, ChEBI:CHEBI:2181,
CC         ChEBI:CHEBI:17617; EC=5.3.1.25; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_01254};
CC   -!- COFACTOR:
CC       Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01254};
CC   -!- PATHWAY: Carbohydrate degradation; L-fucose degradation; L-lactaldehyde
CC       and glycerone phosphate from L-fucose: step 1/3. {ECO:0000255|HAMAP-
CC       Rule:MF_01254}.
CC   -!- SUBUNIT: Homohexamer. {ECO:0000255|HAMAP-Rule:MF_01254}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01254}.
CC   -!- SIMILARITY: Belongs to the L-fucose isomerase family.
CC       {ECO:0000255|HAMAP-Rule:MF_01254}.
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DR   EMBL; CP000802; ABV07191.1; -; Genomic_DNA.
DR   RefSeq; WP_000724176.1; NC_009800.1.
DR   AlphaFoldDB; A8A3T7; -.
DR   SMR; A8A3T7; -.
DR   KEGG; ecx:EcHS_A2946; -.
DR   HOGENOM; CLU_033326_1_0_6; -.
DR   OMA; QDYRACA; -.
DR   UniPathway; UPA00563; UER00624.
DR   Proteomes; UP000001123; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0008736; F:L-fucose isomerase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0030145; F:manganese ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0042355; P:L-fucose catabolic process; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.20.14.10; -; 1.
DR   Gene3D; 3.40.275.10; -; 1.
DR   Gene3D; 3.40.50.1070; -; 1.
DR   HAMAP; MF_01254; Fucose_iso; 1.
DR   InterPro; IPR004216; Fuc/Ara_isomerase_C.
DR   InterPro; IPR038393; Fuc_iso_dom3_sf.
DR   InterPro; IPR015888; Fuc_isomerase_C.
DR   InterPro; IPR038391; Fucose_iso_dom1_sf.
DR   InterPro; IPR012888; Fucose_iso_N1.
DR   InterPro; IPR005763; Fucose_isomerase.
DR   InterPro; IPR038392; Fucose_isomerase_dom2_sf.
DR   InterPro; IPR009015; Fucose_isomerase_N/cen_sf.
DR   InterPro; IPR012889; Fucose_isomerase_N2.
DR   Pfam; PF02952; Fucose_iso_C; 1.
DR   Pfam; PF07881; Fucose_iso_N1; 1.
DR   Pfam; PF07882; Fucose_iso_N2; 1.
DR   SUPFAM; SSF50443; SSF50443; 1.
DR   SUPFAM; SSF53743; SSF53743; 1.
DR   TIGRFAMs; TIGR01089; fucI; 1.
PE   3: Inferred from homology;
KW   Carbohydrate metabolism; Cytoplasm; Fucose metabolism; Isomerase;
KW   Manganese; Metal-binding.
FT   CHAIN           1..591
FT                   /note="L-fucose isomerase"
FT                   /id="PRO_1000067217"
FT   ACT_SITE        337
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01254"
FT   ACT_SITE        361
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01254"
FT   BINDING         337
FT                   /ligand="Mn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29035"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01254"
FT   BINDING         361
FT                   /ligand="Mn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29035"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01254"
FT   BINDING         528
FT                   /ligand="Mn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29035"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01254"
SQ   SEQUENCE   591 AA;  64977 MW;  842D4FEC0A235944 CRC64;
     MKKISLPKIG IRPVIDGRRM GVRESLEEQT MNMAKATAAL LTEKLRHACG AAVECVISDT
     CIAGMAEAAA CEEKFSSQNV GLTITVTPCW CYGSETIDMD PTRPKAIWGF NGTERPGAVY
     LAAALAAHSQ KGIPAFSIYG HDVQDADDTS IPADVEEKLL RFARAGLAVA SMKGKSYLSL
     GGVSMGIAGS IVDHNFFESW LGMKVQAVDM TELRRRIDQQ IYDEAELEMA LAWADKNFRY
     GEDENNKQYQ RNAEQSRAVL RESLLMAMCI RDMMQGNSKL ADIGRVEESL GYNAIAAGFQ
     GQRHWTDQYP NGDTAEAILN SSFDWNGVRE PFVVATENDS LNGVAMLMGH QLTGTAQVFA
     DVRTYWSPEA IERVTGHKLD GLAEHGIIHL INSGSAALDG SCKQRDSEGN PTMKPHWEIS
     QQEADACLAA TEWCPAIHEY FRGGGYSSRF LTEGGVPFTM TRVNIIKGLG PVLQIAEGWS
     VELPKDVHDI LNKRTNSTWP TTWFAPRLTG KGPFTDVYSV MANWGANHGV LTIGHVGADF
     ITLASMLRIP VCMHNVEETK VYRPSAWAAH GMDIEGQDYR ACQNYGPLYK R