ID   FUCM_HAEIE              Reviewed;         144 AA.
AC   A5UAS6;
DT   22-JUL-2008, integrated into UniProtKB/Swiss-Prot.
DT   10-JUL-2007, sequence version 1.
DT   03-AUG-2022, entry version 77.
DE   RecName: Full=L-fucose mutarotase {ECO:0000255|HAMAP-Rule:MF_01662};
DE            EC=5.1.3.29 {ECO:0000255|HAMAP-Rule:MF_01662};
DE   AltName: Full=Fucose 1-epimerase {ECO:0000255|HAMAP-Rule:MF_01662};
DE   AltName: Full=Type-2 mutarotase {ECO:0000255|HAMAP-Rule:MF_01662};
GN   Name=fucU {ECO:0000255|HAMAP-Rule:MF_01662};
GN   OrderedLocusNames=CGSHiEE_02040;
OS   Haemophilus influenzae (strain PittEE).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pasteurellales;
OC   Pasteurellaceae; Haemophilus.
OX   NCBI_TaxID=374930;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=PittEE;
RX   PubMed=17550610; DOI=10.1186/gb-2007-8-6-r103;
RA   Hogg J.S., Hu F.Z., Janto B., Boissy R., Hayes J., Keefe R., Post J.C.,
RA   Ehrlich G.D.;
RT   "Characterization and modeling of the Haemophilus influenzae core and
RT   supragenomes based on the complete genomic sequences of Rd and 12 clinical
RT   nontypeable strains.";
RL   Genome Biol. 8:R103.1-R103.18(2007).
CC   -!- FUNCTION: Involved in the anomeric conversion of L-fucose.
CC       {ECO:0000255|HAMAP-Rule:MF_01662}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=alpha-L-fucose = beta-L-fucose; Xref=Rhea:RHEA:25580,
CC         ChEBI:CHEBI:42548, ChEBI:CHEBI:42589; EC=5.1.3.29;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01662};
CC   -!- PATHWAY: Carbohydrate metabolism; L-fucose metabolism.
CC       {ECO:0000255|HAMAP-Rule:MF_01662}.
CC   -!- SUBUNIT: Homodecamer. {ECO:0000255|HAMAP-Rule:MF_01662}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01662}.
CC   -!- SIMILARITY: Belongs to the RbsD / FucU family. FucU mutarotase
CC       subfamily. {ECO:0000255|HAMAP-Rule:MF_01662}.
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DR   EMBL; CP000671; ABQ97877.1; -; Genomic_DNA.
DR   RefSeq; WP_005688233.1; NC_009566.1.
DR   AlphaFoldDB; A5UAS6; -.
DR   SMR; A5UAS6; -.
DR   KEGG; hip:CGSHiEE_02040; -.
DR   HOGENOM; CLU_120075_1_0_6; -.
DR   OMA; MGHGDDI; -.
DR   UniPathway; UPA00956; -.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0042806; F:fucose binding; IEA:InterPro.
DR   GO; GO:0036373; F:L-fucose mutarotase activity; IEA:UniProtKB-EC.
DR   GO; GO:0042354; P:L-fucose metabolic process; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.40.1650.10; -; 1.
DR   HAMAP; MF_01662; L_fucose_rotase; 1.
DR   InterPro; IPR023751; L-fucose_mutarotase.
DR   InterPro; IPR023750; RbsD-like_sf.
DR   InterPro; IPR007721; RbsD_FucU.
DR   Pfam; PF05025; RbsD_FucU; 1.
DR   SUPFAM; SSF102546; SSF102546; 1.
PE   3: Inferred from homology;
KW   Carbohydrate metabolism; Cytoplasm; Fucose metabolism; Isomerase.
FT   CHAIN           1..144
FT                   /note="L-fucose mutarotase"
FT                   /id="PRO_0000344547"
FT   ACT_SITE        22
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01662"
FT   BINDING         30
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01662"
FT   BINDING         109
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01662"
FT   BINDING         131..133
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01662"
SQ   SEQUENCE   144 AA;  15780 MW;  D66AF8BCDB7935A8 CRC64;
     MLKGIHPALS PELLKTLAEM GHGDEIVLAD THFPAHSLHK NVIRADGISI DILLEAITPL
     FEFDAYVDAP LLMMKAVEGD SLDPNVETRY LNAIESAVGF TPNLTCLERF DFYTRAKQAY
     AVVVSGEIAK YGNIIIKKGV TPIL