ID   IOLB_ALKCK              Reviewed;         271 AA.
AC   Q5WKZ0;
DT   14-OCT-2008, integrated into UniProtKB/Swiss-Prot.
DT   23-NOV-2004, sequence version 1.
DT   25-MAY-2022, entry version 88.
DE   RecName: Full=5-deoxy-glucuronate isomerase {ECO:0000255|HAMAP-Rule:MF_01673};
DE            Short=5DG isomerase {ECO:0000255|HAMAP-Rule:MF_01673};
DE            EC=5.3.1.30 {ECO:0000255|HAMAP-Rule:MF_01673};
GN   Name=iolB {ECO:0000255|HAMAP-Rule:MF_01673}; OrderedLocusNames=ABC0423;
OS   Alkalihalobacillus clausii (strain KSM-K16) (Bacillus clausii).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Alkalihalobacillus.
OX   NCBI_TaxID=66692;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=KSM-K16;
RA   Takaki Y., Kageyama Y., Shimamura S., Suzuki H., Nishi S., Hatada Y.,
RA   Kawai S., Ito S., Horikoshi K.;
RT   "The complete genome sequence of the alkaliphilic Bacillus clausii KSM-
RT   K16.";
RL   Submitted (OCT-2003) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Involved in the isomerization of 5-deoxy-glucuronate (5DG) to
CC       5-dehydro-2-deoxy-D-gluconate (DKG or 2-deoxy-5-keto-D-gluconate).
CC       {ECO:0000255|HAMAP-Rule:MF_01673}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=5-deoxy-D-glucuronate = 5-dehydro-2-deoxy-D-gluconate;
CC         Xref=Rhea:RHEA:25840, ChEBI:CHEBI:16669, ChEBI:CHEBI:58852;
CC         EC=5.3.1.30; Evidence={ECO:0000255|HAMAP-Rule:MF_01673};
CC   -!- PATHWAY: Polyol metabolism; myo-inositol degradation into acetyl-CoA;
CC       acetyl-CoA from myo-inositol: step 4/7. {ECO:0000255|HAMAP-
CC       Rule:MF_01673}.
CC   -!- SIMILARITY: Belongs to the isomerase IolB family. {ECO:0000255|HAMAP-
CC       Rule:MF_01673}.
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DR   EMBL; AP006627; BAD62965.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q5WKZ0; -.
DR   SMR; Q5WKZ0; -.
DR   STRING; 66692.ABC0423; -.
DR   EnsemblBacteria; BAD62965; BAD62965; ABC0423.
DR   KEGG; bcl:ABC0423; -.
DR   eggNOG; COG3718; Bacteria.
DR   HOGENOM; CLU_066438_1_0_9; -.
DR   OMA; HGYDLYY; -.
DR   UniPathway; UPA00076; UER00920.
DR   Proteomes; UP000001168; Chromosome.
DR   GO; GO:0102482; F:5-deoxy-D-glucuronate isomerase activity; IEA:UniProtKB-EC.
DR   GO; GO:0008880; F:glucuronate isomerase activity; IEA:InterPro.
DR   GO; GO:0019310; P:inositol catabolic process; IEA:UniProtKB-UniRule.
DR   Gene3D; 2.60.120.10; -; 2.
DR   HAMAP; MF_01673; IolB; 1.
DR   InterPro; IPR024203; Deoxy-glucuronate_isom_IolB.
DR   InterPro; IPR023770; IolB_Bacilli.
DR   InterPro; IPR021120; KduI/IolB_isomerase.
DR   InterPro; IPR014710; RmlC-like_jellyroll.
DR   InterPro; IPR011051; RmlC_Cupin_sf.
DR   PANTHER; PTHR39193; PTHR39193; 1.
DR   Pfam; PF04962; KduI; 1.
DR   PIRSF; PIRSF036628; IolB; 1.
DR   SUPFAM; SSF51182; SSF51182; 1.
DR   TIGRFAMs; TIGR04378; myo_inos_iolB; 1.
PE   3: Inferred from homology;
KW   Isomerase; Reference proteome.
FT   CHAIN           1..271
FT                   /note="5-deoxy-glucuronate isomerase"
FT                   /id="PRO_0000352383"
SQ   SEQUENCE   271 AA;  30452 MW;  1492C688D632C19C CRC64;
     MGQLLKKPKT KVLKQGVTLV HDTEAEKAPL KYVSFKLVDI QANAIYEETL GSYECCIVVV
     RGTVTVTDGE HVFSNIGTRS SVFERKPTDS VYLSNGRSFT VTGTSEACIA LCYAPSNKQL
     PTKLIKASDV GIENRGQLQN KRLVHNILPD SDKTANSLLV VEVFTESGNW SSYPPHKHDE
     DNLPYESFLE ETYYHEIDPP QGFVFQRVYT ESRNIDETMA VENGDVVIVP AGYHPVGVPD
     GYASYYLNVM AGPVRIWKFR NEKDHEWILS R